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Title:
A FEEDING APPARATUS AND A METHOD OF SUPPLYING TOBACCO INDUSTRY PRODUCT FILLER MATERIAL FROM A SOURCE OF TOBACCO INDUSTRY PRODUCT FILLER MATERIAL TO A DRUM
Document Type and Number:
WIPO Patent Application WO/2019/145741
Kind Code:
A1
Abstract:
The present disclosure relates to a feeding apparatus (11) for supplying tobacco industry product filler material (7,8) from a source (15) of tobacco industry product filler material to a drum (12). The drum comprising a plurality of receiving portions (26) for receiving the filler material. The feeding apparatus comprises a gas flow device (21) and a channel (14) for fluidly communicating the source of filler material with the receiving portions of the drum. The channel comprises an outlet (16) and the drum is configured to rotate to align one or more of the receiving portions with the outlet. The gas flow device operable to induce a gas flow in the channel to transport filler material along the channel from the source of filler material to the outlet. The present disclosure also relates to a method of supplying tobacco industry product filler material from a source of tobacco industry product filler material to a drum.

Inventors:
CHAN DORCAS (GB)
FALLON GARY (GB)
RICHARDSON JOHN (GB)
Application Number:
PCT/GB2019/050240
Publication Date:
August 01, 2019
Filing Date:
January 29, 2019
Export Citation:
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Assignee:
BRITISH AMERICAN TOBACCO INVESTMENTS LTD (GB)
International Classes:
A24C5/39; A24D3/02
Domestic Patent References:
WO2012175333A12012-12-27
WO2003016137A12003-02-27
WO2016088039A12016-06-09
Foreign References:
US4005668A1977-02-01
GB995649A1965-06-23
FR1243174A1960-10-07
Attorney, Agent or Firm:
HUDSON, George (GB)
Download PDF:
Claims:
Claims

1. A feeding apparatus for supplying tobacco industry product filler material from a source of tobacco industry product filler material to a drum, the drum comprising a plurality of receiving portions for receiving the filler material, wherein the feeding apparatus comprises:

a channel for fluidly communicating the source of filler material with the receiving portions of the drum, the channel comprising an outlet and wherein the drum is configured to rotate to align one or more of the receiving portions with the outlet; and,

a gas flow device operable to induce a gas flow in the channel to transport filler material along the channel from the source of filler material to the outlet.

2. A feeding apparatus according to claim l, wherein the channel is configured such that filler material in the channel moves in an upwards direction along the channel towards the outlet.

3. A feeding apparatus according to claim 1 or claim 2, wherein the channel is configured such that at least a portion of the channel extends substantially tangentially to the drum towards the outlet.

4. A feeding apparatus according to any one of claims 1 to 3, wherein the drum comprises a curved periphery and wherein the outlet comprises a substantially curved recess in the channel configured to receive a portion of the curved periphery of the drum.

5. A feeding apparatus according to any one of claims 1 to 4, wherein the channel comprises a first portion located upstream of the outlet and a second portion located downstream of the outlet in the direction of the gas flow in the channel.

6. A feeding apparatus according to claim 5, wherein the channel is configured such that filler material that bypasses the outlet and is transported from the first portion to the second portion is recirculated to the first portion. 7. A feeding apparatus according to any one of claims 1 to 6, wherein the gas flow device comprises at least one of a blower and a compressed gas source.

8. A feeding apparatus according to any one of claims 1 to 7, wherein the gas flow device is located outside of the drum. 9. A feeding apparatus according to any one of claims 1 to 8, comprising a control device operable to control the supply of tobacco industry product filler material from the source of tobacco industry product filler material to the channel.

10. A feeding apparatus according to any one of claims 1 to 9, wherein the drum comprises a plurality of second receiving portions for receiving a second filler material, wherein the feeding apparatus further comprises:

a second channel for fluidly communicating a source of second filler material with the second receiving portions of the drum, the second channel comprising an outlet and wherein the drum is configured to rotate to align one or more of the second receiving portions with the outlet; and,

a gas flow device operable to induce a gas flow in the second channel to transport filler material along the second channel from the source of second filler material to the outlet. 11. A filling apparatus comprising:

a drum comprising a plurality of receiving portions for receiving a tobacco industry product filler material; and,

a feeding apparatus according to any one of claims 1 to 10 for supplying tobacco industry product filler material from a source of tobacco industry product filler material to the drum.

12. A filling apparatus according to claim 11, wherein the receiving portions are each configured to fluidly communicate with a suction source to draw filler material from the outlet of the channel into the one or more receiving portions aligned with the outlet.

13. A filling apparatus according to claim 12, further comprising a suction source, wherein the receiving portions are each configured to fluidly communicate with the suction source to draw filler material from the outlet of the channel into the one or more receiving portions aligned with the outlet.

14. A method of supplying tobacco industry product filler material from a source of tobacco industry product filler material to a drum, the drum comprising a plurality of receiving portions for receiving the filler material, wherein the method comprises: rotating the drum such that one or more of the receiving portions is aligned with an outlet of a channel that fluidly communicates the source of filler material with the outlet; and,

operating a gas flow device to induce a gas flow in the channel to transport filler material along the channel from the source of filler material to the outlet. 15. A method according to claim 14, wherein the channel is configured such that filler material in the channel moves in an upwards direction along the channel towards the outlet.

16. A method according to claim 14 or claim 15, wherein the channel is configured such that at least a portion of the channel extends substantially tangentially to the drum towards the outlet.

17. A method according to any one of claims 14 to 16, wherein the drum comprises a curved periphery and wherein the outlet comprises a substantially curved recess in the channel configured to receive a portion of the curved periphery of the drum.

18. A method according to any one of claims 14 to 17, wherein the channel comprises a first portion located upstream of the outlet and a second portion located downstream of the outlet in the direction of the gas flow in the channel.

19. A method according to claim 18, comprising recirculating filler material that bypasses the outlet and enters the second portion of the channel such that the recirculated filler material is supplied to the first portion. 20. A method according to any one of claims 14 to 19, wherein the gas flow device comprises at least one of a blower and a compressed gas source.

21. A method according to any one of claims 14 to 20, wherein the gas flow device is located outside of the drum.

22. A method according to any one of claims 14 to 21, comprising applying suction to the one or more receiving portions aligned with the outlet to draw filler material from the outlet of the channel into the one or more receiving portions aligned with the outlet.

23. A method according to any one of claims 14 to 22, wherein the filler material comprises one or more of an additive, filtration medium and abrasive material.

24. A method according to any one of claims 14 to 23, wherein the method comprises operating a control device to control the supply of tobacco industry product filler material from the source of tobacco industry product filler material to the channel.

25. A method according to any one of claims 14 to 24, wherein the drum comprises a plurality of second receiving portions for receiving a second filler material, wherein the method comprises:

rotating the drum such that one or more of the second receiving portions is aligned with an outlet of a second channel that fluidly communicates a source of second filler material with the outlet; and,

operating a gas flow device to induce a gas flow in the second channel to transport the second filler material along the second channel from the source of second filler material to the outlet.

Description:
A Feeding Apparatus and a Method of Supplying Tobacco Industry Product Filler Material from a Source of Tobacco Industry Product Filler Material to a Drum Technical Field

The present disclosure relates to a feeding apparatus for supplying tobacco industry product filler material from a source of tobacco industry product filler material to a drum. The present disclosure also relates to a method of supplying tobacco industry product filler material from a source of tobacco industry product filler material to a drum.

Background

It is known in the art to provide a cigarette with a capsule containing flavourant. During use, the user may break the capsule to release flavourant into smoke flowing through the cigarette. Therefore, the user is able to selectively add flavourant to the smoke. The capsule maybe added to the filter of the cigarette during assembly of the filter.

Summary

There is provided a feeding apparatus for supplying tobacco industry product filler material from a source of tobacco industry product filler material to a drum, the drum comprising a plurality of receiving portions for receiving the filler material, wherein the feeding apparatus comprises: a channel for fluidly communicating the source of filler material with the receiving portions of the drum, the channel comprising an outlet and wherein the drum is configured to rotate to align one or more of the receiving portions with the outlet; and, a gas flow device operable to induce a gas flow in the channel to transport filler material along the channel from the source of filler material to the outlet.

In one embodiment, the channel is configured such that filler material in the channel moves in an upwards direction along the channel towards the outlet.

In one embodiment, the channel is configured such that at least a portion of the channel extends substantially tangentially to the drum towards the outlet. In one embodiment, the drum comprises a curved periphery and wherein the outlet comprises a substantially curved recess in the channel configured to receive a portion of the curved periphery of the drum. In one embodiment, the channel comprises a first portion located upstream of the outlet and a second portion located downstream of the outlet in the direction of the gas flow in the channel.

In one embodiment, the channel is configured such that filler material that bypasses the outlet and is transported from the first portion to the second portion is recirculated to the first portion.

The gas flow device may comprise at least one of a blower and a compressed gas source. The gas flow device may be located outside of the drum.

In one embodiment, there is provided a control device operable to control the supply of tobacco industry product filler material from the source of tobacco industry product filler material to the channel.

In one embodiment, the drum comprises a plurality of second receiving portions for receiving a second filler material, wherein the feeding apparatus further comprises: a second channel for fluidly communicating a source of second filler material with the second receiving portions of the drum, the second channel comprising an outlet and wherein the drum is configured to rotate to align one or more of the second receiving portions with the outlet; and, a gas flow device operable to induce a gas flow in the second channel to transport filler material along the second channel from the source of second filler material to the outlet. There is also provided a filling apparatus comprising: a drum comprising a plurality of receiving portions for receiving a tobacco industry product filler material; and, a feeding apparatus for supplying tobacco industry product filler material from a source of tobacco industry product filler material to the drum. In one embodiment, the receiving portions are each configured to fluidly communicate with a suction source to draw filler material from the outlet of the channel into the one or more receiving portions aligned with the outlet. The filling apparatus may further comprise a suction source, wherein the receiving portions are each configured to fluidly communicate with the suction source to draw filler material from the outlet of the channel into the one or more receiving portions aligned with the outlet. In one embodiment, there is provided a filling apparatus comprising a drum and a feeding apparatus for supplying tobacco industry product filler material from a source of tobacco industry product filler material to the drum, the drum comprising a plurality of receiving portions for receiving the filler material, wherein the feeding apparatus comprises: a channel for fluidly communicating the source of filler material with the receiving portions of the drum, the channel comprising an outlet and wherein the drum is configured to rotate to align one or more of the receiving portions with the outlet; and, a gas flow device operable to induce a gas flow in the channel to transport filler material along the channel from the source of filler material to the outlet There is also provided a method of supplying tobacco industry product filler material from a source of tobacco industry product filler material to a drum, the drum comprising a plurality of receiving portions for receiving the filler material, wherein the method comprises: rotating the drum such that one or more of the receiving portions is aligned with an outlet of a channel that fluidly communicates the source of filler material with the outlet; and, operating a gas flow device to induce a gas flow in the channel to transport filler material along the channel from the source of filler material to the outlet.

In one embodiment, the channel is configured such that filler material in the channel moves in an upwards direction along the channel towards the outlet.

In one embodiment, the channel is configured such that at least a portion of the channel extends substantially tangentially to the drum towards the outlet. In one embodiment, the drum comprises a curved periphery and wherein the outlet comprises a substantially curved recess in the channel configured to receive a portion of the curved periphery of the drum. In one embodiment, the channel comprises a first portion located upstream of the outlet and a second portion located downstream of the outlet in the direction of the gas flow in the channel.

In one embodiment, the method comprises recirculating filler material that bypasses the outlet and enters the second portion of the channel such that the recirculated filler material is supplied to the first portion.

The gas flow device may comprise at least one of a blower and a compressed gas source. The gas flow device may be located outside of the drum.

The method may comprise applying suction to the one or more receiving portions aligned with the outlet to draw filler material from the outlet of the channel into the one or more receiving portions aligned with the outlet. In one embodiment, the filler material comprises one or more of an additive, filtration medium and abrasive material.

In one embodiment, the method comprises operating a control device to control the supply of tobacco industiy product filler material from the source of tobacco industry product filler material to the channel.

In one embodiment, the drum comprises a plurality of second receiving portions for receiving a second filler material, wherein the method comprises: rotating the drum such that one or more of the second receiving portions is aligned with an outlet of a second channel that fluidly communicates a source of second filler material with the outlet; and, operating a gas flow device to induce a gas flow in the second channel to transport the second filler material along the second channel from the source of second filler material to the outlet. Brief Description of the Drawings Embodiments will now be described, by way of non-limiting example only, with reference to the drawings, in which:

Fig. l is a schematic cross-sectional side view of a smoking article;

Fig. 2 is a schematic side view of an embodiment of a filling apparatus;

Fig. 3 is a perspective view of a portion of a first channel of the filling apparatus of Fig. 2;

Fig. 4 is a schematic front view of a portion of the filling apparatus of Fig. 2;

Fig. 5 is a perspective view of a drum and a portion of a feeding apparatus of the filling apparatus of Fig. 2;

Fig. 6 is a front view of the drum and portion of the feeding apparatus of Fig. 5;

Fig. 7 is another perspective view of the drum and portion of the feeding apparatus of Fig. 5; and,

Fig. 8 is a block diagram representing a method of supplying filler material from a source of filler material to a drum.

Detailed Description

Referring now to Fig. 1, a tobacco industry product 1 in the form of a smoking article 1 is shown. The smoking article 1 comprises a tobacco rod 2 and a tobacco industry product component 3. In the present embodiment, the tobacco industry product component 3 comprises a smoking article component 3.

An outer wrap 4 circumscribes the smoking article component 3 and a portion of the tobacco rod 2. The outer wrap 4 comprises a tipping paper 4 that attaches the tobacco rod 2 to the smoking article component 3. The tobacco rod 2 comprises a column of smokeable material 2A circumscribed by a rod wrapper 2B.

In the present embodiment, the smoking article component 3 is a smoking article filter 3 comprising first and second sections 5A, 5B of filter material and a cavity 6. The first and second sections 5A, 5B comprise first and second plugs 5A, 5B of filter material. The first and second plugs 5A, 5B maybe generally cylindrical in shape, although other shapes of plug 5A, 5B are possible.

The first and second plugs 5A, 5B are spaced in the axial direction of the smoking article 1 such that the cavity 6 is located between the first and second plugs 5A, 5B. The second plug 5B is located downstream of the tobacco rod 2. The first plug 5A is located downstream of the second plug 5B, on the opposite side of the cavity 6 to the second plug 5B. Thus, the first plug 5A is disposed at the mouth end of the smoking article 1.

The cavity 6 of the smoking article component 3 contains a first filler material 7 and a second filler material 8. The first and second filler materials 7, 8 may each comprise one or more of a filtration medium, such as activated carbon granules, abrasive material or additive, for example, a flavourant. The first and second filler materials 7, 8 may comprise capsules, powder, and/or granules. In one embodiment, the first filler material 7 comprises a flavourant, for example, flavourant microcapsules, and the second filler material 8 comprises an abrasive material that is configured to rupture the microcapsules to release flavourant. In another embodiment, the first filler material 7 comprises a first additive, for example, a first flavourant, and the second filler material 8 comprises a second additive, for example, a second flavourant, that is different to the first additive.

The smoking article component 3 further comprises a plug wrap 9 that circumscribes the cavity 6 and at least a portion of the first and/or second plugs 5A, 5B. In the present embodiment, the plug wrap 9 circumscribes the entire length of both of the first and second plugs 5A, 5B.

The portion of the plug wrap 9 and tipping paper 4 that overlies the cavity 6 form a wall of the smoking article component 3. The wall circumscribes the cavity 6. The wall retains the first and second filler materials 7, 8 within the cavity 6. The wall is deformable such that, in use, the user applies an external force to deform the wall radially inwardly such that the first and second filler materials 7, 8 are ground together to modify a characteristic of gas flowing through the smoking article component 3. In the example described above, the user grips the wall and rolls the smoking article component 3 between the fingers such that the abrasive particles of the second filler material 8 rupture the flavourant capsules of the first filler material 7 to release flavourant therefrom.

In some embodiments (not shown), the plug wrap 9 is omitted and the wall comprises the tipping paper 4. In other embodiments (not shown), the tipping paper 4 is omitted and the wall comprises the plug wrap 9. In some embodiments (not shown), the wall comprises a further sheet of material (not shown) in addition to the tipping paper 4 and/ or plug wrap 9. Referring now to Figs. 2 to 7, an embodiment of a filling apparatus 10 is shown. In the present embodiment, the filling apparatus 10 is configured for manufacturing the tobacco industry product component 3 of the tobacco industry product 1 of Fig. 1. However, it should be recognised that the filling apparatus 10 may be configured to manufacture a different type of tobacco industry product component.

The filling apparatus 10 comprises a feeding apparatus 11, a drum 12 and a conveyance apparatus 13.

The feeding apparatus 11 comprises first, second, third and fourth channels 14A, 14B, 14C, 14D. The first and third channels 14A, 14C are configured to supply a first filler material 7 from a first filler material source 15 to the drum 12. The second and fourth channels 14B, 14D are configured to supply a second filler material 8 from a second filler material source (not shown) to the drum 12.

The first filler material source 15 comprises a hopper 15 that contains the first filler material 7 and is configured to supply the first filler material 7 to the first and third channels 14A, 14C. In one embodiment, the first filler material source 15 further comprises a control device (not shown) that is operable to control the supply of the first filler material 7 from the first filler material source 15 to the first and third channels 14A, 14C. The control device may comprise a control gate that is selectively openable, for example, comprising a sliding or hinged door, to feed the first filler material 7 to the first and third channels 14A, 14C via gravity. In another embodiment, the control device comprises a conveyor belt (not shown) configured to feed the first filler material 7 to the first and third channels 14A, 14C. In a yet further embodiment (not shown), the control device comprises a threaded screw that is rotated to feed the first filler material 7 from the hopper 15 to the first and third channels 14A, 14C. The second filler material source (not shown) comprises a hopper that contains the second filler material 8 and is configured to supply the second filler material 8 to the second and fourth channels 14B, 14D. In one embodiment, the second filler material source further comprises a control device (not shown) that is operable to control the supply of the second filler material 8 from the second filler material source to the second and fourth channels 14B, 14D. The control device may be similar to the control device described above that supplies the first filler material 7 from the first filler material source 15, for example, comprising one or more of a control gate, conveyor belt and rotatable screw.

In the present embodiment, the first, second, third and fourth channels 14A, 14B, 14C, 14D are of a similar arrangement and therefore, for the sake of brevity, only the first channel 14A will be described in detail hereinafter.

The first channel 14A comprises an outlet 16 that is fluidly communicated with the drum 12 to provide the first filler material 7 to the drum 12. Similarly, the second, third and fourth channels 14B, 14C, 14D comprise respective outlets (not shown) to supply first or second filler material 7, 8 to the drum 12.

As shown in Figs. 2 and 3, the first channel 14A comprises a first outlet portion 17 that extends to the outlet 16 from upstream of the outlet 16 and a second outlet portion 18 that extends from the outlet 16 to downstream of the outlet 16.

The first channel 14A further comprises a supply portion 19 and a recirculation portion 20. The supply portion 19 of the first channel 14A is configured to transport the first filler material 7 from the first filler material source 15 to the first outlet portion 17. The recirculation portion 20 is configured to transport the first filler material 7 from the second outlet portion 18 to the supply portion 19 for recirculation to the outlet 16. Thus, first filler material 7 that is not transferred to the drum 12 is recirculated for re-supply to the drum 12. The feeding apparatus 11 further comprises a gas flow device 21 that is configured to induce a gas flow within the first, second, third and fourth channels 14A, 14B, 14C 14D. Operation of the gas flow device 21 induces the gas flow in the first and third channels 14A, 14C to transport the first filler material 7 along the first and third channels 14A, 14C from the first filler material source 15 to the outlet 16 of the first and third channels 14A, 14C for supply to the drum 12. Furthermore, operation of the gas flow device 21 induces the gas flow in the second and fourth channels 14B, 14D to transport the second filler material 8 along the second and fourth channels 14B, 14D from the second filler material source to the outlets of the second and fourth channels 14B, 14D for supply to the drum 12. The gas flow device 21 may comprise, for example, a blower or compressed gas source. Transporting the first and second filler material 7, 8 by gas flow helps to prevent damage to the first and second filler material 7, 8. The gas flow device 21 is located upstream of the first and second filler material sources 15 such that gas flow from the gas flow device 21 first passes the first and second filler material sources 15 and then passes the drum 12. However, in other embodiments (not shown), the gas flow device 21 may have a different position, for example, being located downstream of the first and/ or second filler material sources 15 such that gas flow from the gas flow device 21 first passes the drum 12 and then passes the first and/or second filler material sources 15. In one alternative embodiment (not shown), the feeding apparatus 11 comprises a plurality of gas flow devices that are each operable to induce a gas flow in a respective one of the first, second, third and fourth channels 14A, 14B, 14C, 14D.

The first channel 14A comprises a duct having a peripheral wall 22 that surrounds the first channel 14A. The outlet 16 comprises a recess 16 in the peripheral wall 22. The outlet 16 is curved to correspond to a curved peripheral surface 12A of the drum 12. A portion of the curved peripheral surface 12A of the drum 12 is received in the recess 16.

The first outlet portion 17 of the first channel 14A is arranged such that first filler material 7 travelling along the first outlet portion 17 towards the outlet 16 moves upwardly. In the present embodiment, first outlet portion 17 is generally vertical such that first filler material 7 travelling along the first outlet portion 17 towards the outlet 16 moves vertically. However, in other embodiments the first outlet portion 17 is inclined between the vertical and horizontal. In some embodiments, the first outlet portion 17 is inclined at an angle of 30 degrees or more, and optionally 45 degrees or more, to the horizontal.

The first outlet portion 17 of the first channel 14A being arranged such that first filler material 7 moves upwardly towards the outlet 16 provides the advantage of allowing for greater control of the velocity of the first filler material 7 within the first channel 14A. More specifically, since the first filler material 7 travels upwardly, it is moving against the force of gravity and thus a slower velocity of the first filler material 7 can be achieved for a given gas flow rate within the first channel 14A than if the first filler material 7 was not travelling upwardly. A slower velocity of the first filler material 7 in the first channel 14A makes it easier for the first filler material 7 to be transferred to the drum 12. A slower velocity of the first filler material 7 in the first channel 14A may reduce the likelihood of damage to the first filler material 7 if the first filler material 7 strikes the first channel 14A and/ or drum 12 as the first filler material 7 moves through the first channel 14A.

The first outlet portion 17 is arranged such that gas flow in the first outlet portion 17 is directed to pass the drum 12 and enter the second outlet portion 18. Thus, first filler material 7 passing along the first outlet portion 17 has a tendency to bypass the drum 12, flowing into the second outlet portion 18, unless the drum 12 is operated to draw the first filler material 7 towards the drum 12 in the manner described below. This helps to prevent the first filler material 7 from accumulating on the drum 12, and potentially clogging the drum 12, when the drum 12 is not in a position wherein the first filler material 7 is drawn towards the drum 12. In one embodiment, the first outlet portion 17 is arranged such that gas flow is directed to pass the drum 12 substantially tangentially.

In some embodiments, the first outlet portion 17 is arranged such that first filler material 7 travels along the first outlet portion 17 in a direction (shown by arrow‘X’ in Fig. 5) that is at an angle A to an imaginary chord line (shown by arrow‘R’ in Fig. 5), wherein the chord line R extends radially outwardly in a straight line from a central axis (shown by the dashed line Ύ-U in Fig. 6) of the drum 12 to intersect a receiving portion 26 of the drum 12 that is proximate the outlet 16 and is in a loading position as described in more detail below. In some embodiments, the angle A is between 20 and 160 degrees, between 45 and 135 degrees, or between 50 and 120 degrees. In one embodiment, the angle A is substantially 90 degrees such that the first filler material 7 travels along the first outlet portion 17 substantially tangentially to the drum 12. In some embodiments, the first outlet portion 17 extends linearly. The first outlet portion 17 being arranged such that the first filler material 7 travels along the first outlet portion 17 at said angle A helps to ensure that the first filler material 7 bypasses the drum 12, flowing into the second outlet portion 18, when the drum 12 is not operated to draw the first filler material 7 towards the drum 12. This helps to prevent the first filler material 7 accumulating on the drum 12, and potentially clogging the drum 12, when the drum 12 is not positioned to draw the first filler material 7 towards the drum 12. The second outlet portion 18 extends from the outlet 16 to direct first filler material 7 that bypasses the outlet 16 such that the first filler material 7 moves away from the drum 12. In the present embodiment, the first and second outlet portions 17, 18 are aligned such that first filler material 7 travelling through the first and second outlet portions 17, 18 follows a substantially linear path. However, in an alternative embodiment (not shown), the second outlet portion 18 is at an angle to the first outlet portion 17. In one embodiment (not shown), the second outlet portion 18 is arranged such that first filler material 7 entering the second outlet portion 18 travels along a curved path away from the first outlet portion 17.

The supply portion 19 of the first channel 14A fluidly communicates the first filler material source 15 with the first outlet portion 17 of the first channel 14A. The recirculation portion 20 of the first channel 14A fluidly communicates the second outlet portion 18 with the supply portion 19 such that first filler material 7 which bypasses the outlet 16 and enters the second outlet portion 18 is recirculated to the supply portion 19 of the first channel 14A, thereby reducing waste. The first channel 14A may form a closed-loop.

In an alternative embodiment (not shown), the recirculation portion 20 recirculates the first filler material 7 into the first filler material source 15. For example, the

recirculation portion 20 may extend into the first filler material source 15.

Alternatively, the recirculation portion 20 may be fluidly communicated with a device, such as a cyclonic separation device, that is configured to separate the recirculated first filler material 7 from the gas flow and feed the recirculated first filler material 7 into the first filler material source 15. The first filler material 7 may then be re-supplied to the first channel 14A by the first filler material source 15 to be recirculated to the drum 12.

The drum 12 comprises a generally cylindrical peripheral wall 23 that surrounds a suction chamber 24. The drum 12 is configured to rotate about the central axis (shown by the dashed line Ύ-U’ in Fig. 6). The drum 12 rotates relative to the first, second, third and fourth channels 14A, 14B, 14C, 14D. The drum 12 rotates in the direction of arrow ‘B’ (shown in Fig. 2). The filling apparatus 10 further comprises a drive mechanism (not shown) that is configured to rotate the drum 12. The drive mechanism may comprise, for example, an electric motor (not shown) and a gearbox (not shown).

The drum 12 comprises a plurality of suction ports 25 comprising apertures 25 which extend through the peripheral wall 23 of the drum 12 to fluidly communicate with the suction chamber 24. The suction chamber 24 is fluidly communicated with a suction device (not shown), for example, a pump, that is configured to apply suction to the suction chamber 24 such that the pressure in the suction chamber 24 is lower than the pressure on the outside of the peripheral wall 23 of the drum 12. Thus, air is drawn through the suction ports 25 and into the suction chamber 24 when the suction device is operated. The suction ports 25 are arranged in a helical formation about the central axis Y-Y of the drum 12. In one embodiment (not shown), the drum 12 comprises a plurality of suction chambers that are fluidly communicated with one or more suction devices, wherein each suction port 25 is fluidly communicated with one or more of the suction chambers.

The drum 12 further comprises a plurality of receiving portions 26 configured to each receive first or second filler material 7, 8 from one of the first, second, third or fourth channels 14A, 14B, 14C, 14D. More specifically, the drum 12 comprises first, second, third and fourth groups of receiving portions 26A, 26B, 26C, 26D. Each group of receiving portions 26A, 26B, 26C, 26D is spaced about the central axis Y-Y of the drum 12. Each group of receiving portions 26A, 26B, 26C, 26D is arranged in a helical formation at least partially about the central axis Y-Y of the drum 12. In the present embodiment, the first, second, third and fourth groups of receiving portions 26A, 26B, 26C, 26D are arranged such that a receiving portion 26A, 26B, 26C, 26D of each group is aligned in the circumferential direction of the drum 12.

The first group of receiving portions 26A are aligned with the outlet 16 of the first channel 14A such that the drum 12 can be rotated to communicate each receiving portion 26A of the first group with the outlet 16. The second, third and fourth groups of receiving portions 26B, 26C, 26D are aligned with the outlets (not shown) of the second, third and fourth channels 14B, 14C, 14D respectively such that the drum 12 can be rotated to communicate each receiving portion 26B, 26C, 26D of the second, third and fourth group with the outlet of the respective second, third and fourth channels 14B, 14C, 14D.

In the present embodiment, each of the first, second, third and fourth groups of receiving portions 26A, 26B, 26C, 26D comprises eight receiving portions 26. However, in other embodiments (not shown), each group comprises a different number of receiving portions. In the present embodiment, each of the first, second, third and fourth groups of receiving portions 26A, 26B, 26C, 26D are spaced 360 degrees about the central axis Y- Y of the drum 12. In an alternative embodiment (not shown), each of the first, second, third and fourth groups of receiving portions 26A, 26B, 26C, 26D are only provided about a portion of the central axis Y-Y of the drum 12. In other words, each of the first, second, third and fourth groups of receiving portions 26A, 26B, 26C, 26D subtends about the central axis Y-Y of the drum 12 by an angle less than 360 degrees.

Each receiving portion 26 comprises an aperture 27 and a holding member 28. Each aperture 27 is provided through the peripheral wall 23 of the drum 12 and is configured to receive first or second filler material 7, 8.

Each holding member 28 is configured to retain the first or second filler material 7, 8 in the aperture 27 of the respective receiving portion 26. Each holding member 28 extends over a respective aperture 27 on the inside surface of the peripheral wall 23 of the drum 12 and is impermeable, or substantially impermeable, to the first or second filler material 7, 8 to prevent the first or second filler material 7, 8 from entering the suction chamber 24 inside the drum 12. Thus, each aperture 27 and respective holding member 28 together form a recess of the drum 12 that receives first or second filler material 7, 8.

The holding member 28 of each receiving portion 26 is gas permeable such that suction applied to the suction chamber 24 by the suction device (not shown) results in suction being applied to the apertures 27. Thus, operation of the suction device results in suction being applied to the aperture 27 such that the first/second filling material 7, 8 is drawn into the aperture 27 of the respective receiving portion 26 and retained in the aperture 27 during rotation of the drum 12.

In some embodiments, each holding member 28 comprises a protrusion 29 on the inside surface of the drum 12. Each protrusion 29 comprises an aperture 30 that is fluidly communicated with a corresponding aperture 27 in the peripheral wall 23 of the drum 12. A gas permeable member 31 is provided in, or over, the aperture 30 of each protrusion 29. Each gas permeable member 31 may comprise, for example, a mesh or portion of porous material, that is impermeable to the first or second filler material 7, 8 to prevent the first or second filler material 7, 8 from entering the suction chamber 24 on the inside of the drum 12. The gas permeable member 31 permits the flow of gas through the apertures 27, 30 in the peripheral wall 23 and protrusion 29 when suction is applied to the suction chamber 24.

In some embodiments, the aperture 30 of each protrusion 29 is configured to receive first or second filler material 7, 8 to increase the amount of filler material 7, 8 that can be received in each of the receiving portions 26.

The filling apparatus 10 further comprises a blocking member 32 that is provided inside the suction chamber 24 of the drum 12. The blocking member 32 is configured to selectively seal, or at least partially seal, each aperture 27 from the suction chamber 24. In the present embodiment, the blocking member 32 is configured to selectively cover, or at least partially cover, each gas permeable member 31 to seal, or partially seal, each gas permeable member 31. The drum 12 is configured to rotate relative to the blocking member 32 and first, second, third and fourth channels 14A, 14B, 14C, 14D such that each receiving portion 26 is moved between a loading position and an unloading position. When each receiving portion 26 is in the loading position, the receiving portion 26 is aligned with one of the first, second, third and fourth channels 14A, 14B, 14C, 14D to receive first or second filler material 7, 8 therefrom. When each receiving portion 26 is in the loading position, the aperture 27 of the receiving portion 26 is fluidly communicated with the suction chamber 24 via the gas permeable member 31 such that suction applied to the suction chamber 24 by the suction device (not shown) causes the first or second filler material 7, 8 to be drawn through the outlet 16 of the first, second, third or fourth channel 14A, 14B, 14C, 14D and drawn into the aperture 27 of the receiving portion 26.

When each receiving portion 26 is in the unloading position, the receiving portion 26 is aligned with the blocking member 32 such that the blocking member 32 covers, or at least partially covers, the gas permeable member 31 of the receiving portion 26. Thus, suction is no longer applied to the first or second filler material 7, 8 in the aperture 27 of the receiving portion 26, or the amount of suction is reduced, and the first or second filler material 7, 8 is discharged from the aperture 27 as described in more detail below.

In one embodiment, the drum 12 and blocking member 32 are arranged such that each receiving portion 26 faces generally downwardly when in the unloading positon such that gravity helps to urge the first or second filler material 7, 8 out of the receiving portion 26.

In some embodiments, the blocking member 32 is connected to a gas flow device (not shown) that is configured to induce a gas flow through the blocking member 32 to blow the first or second filler material 7, 8 out of the aperture 27 of each receiving portion 26 when the receiving portion 26 is in the unloading position. The gas flow device may comprise, for example, a blower or compressed gas source. The blocking member 32 may comprise an aperture or channel (not shown) that is fluidly communicated with the gas flow device and aligns with each receiving portion 26 when the receiving portion 26 is in the unloading position to blow gas into the receiving portion 26.

In some embodiments, each receiving portion 26 is fluidly communicated with the suction chamber 24 as the drum 12 rotates each receiving portion 26 between the loading and unloading positions. Thus, the suction applied to the suction chamber 24 by the suction device (not shown) helps to retain the first and second filling material 7,

8 in the receiving portions 26 travelling between the loading and unloading positions.

The blocking member 32 is centrally mounted within the drum 12 and comprises a projection 33 that extends radially outwardly towards the peripheral wall 23 of the drum 12. The projection 33 has an end surface 34 that is configured to overlie the gas permeable member 31 of each receiving portion 26 when in the unloading position to seal each gas permeable member 31. However, it should be recognised that in other embodiments (not shown) the blocking member may have a different arrangement, for example, comprising a sleeve that extends partially about the inside of the drum 12 to block the receiving portions 26 when in the unloading position.

In the present embodiment, the blocking member 32 simultaneously overlies the gas permeable member 31 of a receiving portion 26 of each of the first, second, third and fourth groups of receiving portions 26A, 26B, 26C, 26D. However, in another embodiment (not shown), a plurality of blocking members maybe provided to each seal a receiving portion 26 of a respective one of the first, second, third and fourth groups of receiving portions 26A, 26B, 26C, 26D when in the unloading position. The conveyance apparatus 13 is configured to convey double-length plugs P of filter material on a web W of wrapping material along a conveyance path (shown by arrow‘C’ in Fig. 4). The web W comprises, for example, a strip of paper or plastic. The conveyance apparatus 13 comprises a garniture tongue (not shown), a garniture belt 35, and a belt drive 36 comprising first and second pulleys 36A, 36B around which the garniture belt 35 extends in a loop. The belt drive 36 further comprises an electric motor (not shown) configured to drive the first and/ or second pulley 36A, 36B to advance the garniture belt 35. The garniture belt 35 extends through the garniture tongue.

The conveyance apparatus 13 further comprises a spool 37 which supplies the web W to the garniture belt 35. The web W extends from the spool 37 to overlie the garniture belt 35 such that operation of the belt drive 36 feeds the web W through the garniture tongue. The garniture tongue comprises a first portion (not shown) that is shaped to form the web W into a U-shape as it passes through the garniture tongue. The drum 12 is configured to deposit the first and second filler material 7, 8 on the U-shaped web W between adjacent double-length plugs P. The U-shaped web W then passes through a second portion (not shown) of the garniture tongue that is shaped to fold a first longitudinal edge (not shown) of the web W over an opposite second longitudinal edge (not shown) such that the web W exiting the garniture tongue is formed into a cylinder. In some embodiments, the first portion of the garniture tongue is generally U-shaped in cross-section and the second portion of the garniture tongue is generally O-shaped in cross-section.

The conveyance apparatus 13 further comprises a first adhesive applicator (not shown) configured to apply a line of adhesive to the web W such that when the W passes through the second portion (not shown) of the garniture tongue, the first longitudinal edge is folded over the opposite second longitudinal edge of the web W and is glued in position by the line of adhesive.

A plurality of double-length plugs P of filter material are disposed on the portion of the web W located on the garniture belt 35. The double-length plugs P are axially spaced such that a space S is formed between adjacent double-length plugs P. Each space S is configured to form a cavity 6 of a smoking article component 3. The double-length plugs P may be supplied from a plug feeder device (not shown), for example, a drum or conveyor belt, that is arranged to dispose the double-length plugs P on the web W such that the double-length plugs P are axially spaced.

The conveyance apparatus 13 is configured such that the double-length plugs P and web W are transported along the conveyance path C and pass in proximity to the drum 12.

In some embodiments, the peripheral surface 12A of the drum 12 contacts the double- length plugs P as the double-length plugs P pass the drum 12.

In the present embodiment, the conveyance path C passes underneath the drum 12. However, in other embodiments (not shown) the conveyance apparatus 13 is configured such that the conveyance path C passes to one side of the drum 12.

The drum 12 is configured to deposit the first and second filler material 7, 8 on the web W in the spaces S between adjacent double-length plugs P as the double-length plugs P and web W are transported along the conveyance path C by the conveyance apparatus 13. The suction ports 25 of the drum 12 are configured to apply suction to at least one of the double-length plugs P to draw gas through the at least one double-length plug P such that the first and second filler material 7, 8 is drawn into the space S between the adjacent double-length plugs P.

An example of operation of the filling apparatus 10 will now be described. A plurality of axially spaced double-length plugs P of filter material are disposed on the web W of wrapping material and are conveyed along the conveyance path C by the conveyance apparatus 13.

Meanwhile, the gas flow device 21 is operated to induce a gas flow in each of the first, second, third and fourth channels 14A, 14B, 14C, 14D to transport the first and second filler materials 7, 8 from the first and second filler material sources 15 towards the drum 12. In more detail, gas flow in the first and third channels 14A, 14C transports the first filler material 7 from the first filler material source 15 towards the outlet 16 of the first and third channels 14A, 14C and gas flow in the second and fourth channels 14B, 14D transports the second filler material 8 from the second filler material source towards the outlet of the second and fourth channels 14B, 14D. The gas flow may be air flow. Furthermore, the suction device (not shown) is operated to apply suction to the suction chamber 24 of the drum 12. The suction device maybe continually operated during operation of the filling apparatus 10 or maybe intermittently operated to maintain the pressure in the suction chamber 24 below a predetermined pressure.

The suction applied to the suction chamber 24 causes first filler material 7 at the outlet 16 of the first and third channels 14A, 14C to be drawn into receiving portions 26 of the first and third groups of receiving portions 26A, 26C that are in the loading position. The suction applied to the suction chamber 24 also causes second filler material 8 at the outlet of the second and fourth channels 14B, 14D to be drawn into receiving portions 26 of the second and fourth groups of receiving portions 26B, 26D that are in the loading position.

The drum 12 is rotated (in the direction of arrow‘B’ shown in Fig. 2) such that first filler material 7 is drawn into successive receiving portions 26 of the first and third groups of receiving portions 26A, 26C and second filler material 8 is drawn into successive receiving portions 26 of the second and fourth groups of receiving portions 26B, 26D. Rotation of the drum 12 causes each receiving portion 26 to move from the loading positon to the unloading position. As the receiving portions 26 each move from the loading position to the unloading positon, suction is applied to the first and second filler material 7, 8 in the receiving portions 26 to retain the first and second filler material 7, 8 within the respective receiving portions 26.

When each receiving portion 26 reaches the unloading position, the blocking member 32 overlies the gas permeable member 31 of the receiving portion 26 such that suction is no longer applied via the suction chamber 24 to the first or second filler material 7, 8 in the receiving portion 26. The first or second filler material 7, 8 in the receiving portion 26 is dispensed onto the web W in the space S between adjacent double-length plugs P.

In the present embodiment, a receiving portion 26 of the first group of receiving portions 26A dispenses first filler material 7 into a first space Si (shown in Fig. 4) between double-length plugs P. Meanwhile, a receiving portion 26 of the second group of receiving portions 26B dispenses second filler material 8 into a second space S2 (shown in Fig. 4) between double-length plugs P, a receiving portion 26 of the third group of receiving portions 26C dispenses first filler material 7 into a third space S3 (shown in Fig. 4) between double-length plugs P, and a receiving portion 26 of the fourth group of receiving portions 26D dispenses second filler material 8 into a fourth space S4 (shown in Fig. 4) between double-length plugs P. The first, second, third and fourth spaces Si, S2, S3, S4 are disposed consecutively along the conveyance path C.

Next, the web W and double-length plugs P are advanced along the conveyance path C and the drum rotates 12 such that the first space Si underlies a receiving portion 26 of the second group of receiving portions 26B, whereby second filler material 8 is dispensed into the first space Si from the receiving portion 26 of the second group of receiving portions 26B. Meanwhile, the second space S2 underlies a receiving portion 26 of the third group of receiving portions 26C, whereby first filler material 7 is dispensed into the second space S2 from the receiving portion 26 of the third group of receiving portions 26C, and the third space S3 underlies a receiving portion 26 of the fourth group of receiving portions 26D, whereby second filler material 8 is dispensed into the third space S3 from the receiving portion 26 of the fourth group of receiving portions 26D. At this point, the fourth space S4 has advanced along the conveyance path C beyond the drum 12 in the direction of the central axis Y-Y, having been filled with first and second filler material 7, 8 from each of the first, second, third and fourth groups of receiving portions 26A, 26B, 26C, 26D.

Next, the web W and double-length plugs P are advanced along the conveyance path C and the drum rotates 12 such that the first space Si underlies a receiving portion 26 of the third group of receiving portions 26C, whereby first filler material 7 is dispensed into the first space Si from the receiving portion 26 of the third group of receiving portions 26C. Meanwhile, the second space S2 underlies a receiving portion 26 of the fourth group of receiving portions 26D whereby second filler material 8 is dispensed into the second space S2 from the receiving portion 26 of the fourth group of receiving portions 26D. At this point, the third and fourth spaces S3, S4 have both advanced beyond the drum 12, having each been filled with first and second filler material 7, 8 from each of the first, second, third and fourth groups of receiving portions 26A, 26B, 26C, 26D. The web W and double-length plugs P are then further advanced along the conveyance path C whilst the drum rotates 12 such that the first space Si underlies a receiving portion 26 of the fourth group of receiving portions 26D, whereby second filler material 8 is dispensed into the first space Si from the receiving portion 26 of the fourth group of receiving portions 26D. At this point, the second, third and fourth spaces S2, S3, S4 have advanced beyond the drum 12, having each been filled with first and second filler material 7, 8 from each of the first, second, third and fourth groups of receiving portions 26A, 26B, 26C, 26D.

The web W and double-length plugs P are then further advanced along the conveyance path C such that the first, second, third and fourth spaces Si, S2, S3, S4 are advanced beyond the drum 12, having each been filled with first and second filler material 7, 8 from each of the first, second, third and fourth groups of receiving portions 26A, 26B, 26C, 26D. As the web W and double-length plugs P are advanced along the conveyance path C, further double-length plugs P separated by spaces S move under the drum 12 such that the spaces S are filled with first and second filler material 7, 8 from the first, second, third and fourth groups of receiving portions 26A, 26B, 26C, 26D.

The web W and double-length plugs P are subsequently cut by a cutting device (not shown) to form smoking article components 3. In one embodiment, every other double- length plug P is cut in half (along line D-D shown in Fig. 6) to form double-length smoking article components each comprising a central double-length plug P with a single-length plug provided at each end, wherein a cavity 6 comprising first and second filler material 7, 8 is disposed between the double-length plug P and each single-length plug. The web W is also cut, such that a double-length plug wrap surrounds the single- length plugs, double-length plugs P and cavities 6 containing the first and second filler material 7, 8. A tobacco rod 2 is then attached to each end of the double-length smoking article component by tipping paper 4 and then the double-length smoking article component is cut in half, by cutting the double-length plug wrap and double-length plug P in half, to form two smoking articles 1 each comprising a smoking article component 3. The smoking article components 3 each comprise a first and second plug 5A, 5B of filter material separated by a cavity 6 comprising first and second filler material 7, 8 and surrounded by a plug wrap 9. In an alternative embodiment, the web W and double-length plugs P are cut to form a plurality of smoking article components 3 each comprising first and second single-length plugs 5A, 5B separated by a cavity 6 comprising first and second filler material 7, 8 and surrounded by a single-length plug wrap 9. Each smoking article component 3 is then attached to a respective tobacco rod 2 to form a smoking article 1. The suction ports 25 of the drum 12 are configured to help draw the first and second filler material 7, 8 out of the respective receiving portions 26 and into the spaces S between adjacent double-length plugs P when each receiving portion 26 is in the unloading position. More specifically, the suction ports 25, which are fluidly

communicated with the suction chamber 24, apply suction to the cylindrical peripheral surface of double-length plugs P on either side of the space S that is to be filled with the first or second filler material 7, 8. This causes air to be drawn out of said space S through the double-length plugs P (as shown by arrow Έ’ in Fig. 6), which are manufactured from a gas permeable material. The plugs P may be cellulose acetate plugs. Thus, suction ports 25 apply suction to the space S, via the double-length plugs P, to draw the first and second filler material 7, 8 into the space S. This helps to ensure that the first and second filler material 7, 8 is transferred from the receiving portions 26 to the web W, since otherwise some of the first and second filler material 7, 8 may remain in the receiving portions 26 during unloading.

In embodiments wherein the double-length plugs P each comprise a plug wrap (not shown) that surrounds the filter material, the plug warp is gas permeable. For example, the plug wrap may comprise a paper that is itself gas permeable. Alternatively, or additionally, perforations may be formed in the plug wrap to allow gas to pass through the plug wrap.

In the present embodiment, suction ports 25 are provided on both sides of one or more of the receiving portions 26 when in the unloading position to apply suction to double- length plugs P on both sides of one or more of the spaces S being filled with

first/second filler material 7, 8 by said receiving portion(s) 26. However, the suction ports 25 may be arranged to only apply suction to a double-length plug P on one side of one or more of the spaces S being filled with the first/second filler material 7, 8. For example, in the present embodiment the suction ports 25 only apply suction to the double-length plug P on one side of some of the receiving portions 26 of the first and fourth groups of receiving portions 26A, 26D and thus suction is only applied to the double-length plug P on one side of the spaces S filled by said receiving portions 26.

A block diagram illustrating a method of supplying filler material 7, 8 from a source of filler material 15 to a drum 12 is shown in Fig. 8. The method comprises rotating (Si) the drum 12 such that one or more of the receiving portions 26 is aligned with an outlet i6 of a channel 14A, 14B, 14C, 14D that fluidly communicates the source of filler material 15 with the outlet 16; and, operating (S2) a gas flow device 21 to induce a gas flow in the channel 14A, 14B, 14C, 14D to transport filler material 7, 8 along the channel 14A, 14B from the source of filler material 15 to the outlet 16

In the above described embodiment, a first filler material 7 is supplied to the first and third channels 14A, 14C and a second filler material 8 is supplied to the second and fourth channels 14B, 14D. This promotes layering of the first and second filler materials 7, 8 within each space S to ensure a more even distribution of the first and second filler materials 7, 8.

In some alternative embodiments (not shown), a different filler material is supplied to each of the first, second, third and fourth channels 14A, 14B, 14C, 14D. In some alternative embodiments (not shown), the filling apparatus 10 comprises fewer or more than four channels. For example, the filling apparatus 10 may comprise a single channel and the drum 12 comprises a single group of receiving portions, the single channel configured to supply a first filling material to each receiving portion of the single group of receiving portions. In another embodiment (not shown), the filling apparatus 10 comprises a first channel to supply a first filler material to a first group of receiving portions of the drum and a second channel to supply a second filler material to a second group of receiving portions.

In the above described embodiment, each channel 14A, 14B, 14C, 14D comprises a recirculation portion 20 for recirculating the first/second filler material 7, 8. However, it should be recognised that in other embodiments (not shown), the first/second filler material 7, 8 is not recirculated. In one such embodiment (not shown), first/ second filler material 7, 8 that bypasses the outlet 16 of the channel 14A, 14B, 14C, 14D may instead be vented to a waste receptacle for disposal. In one embodiment (not shown), each channel 14A, 14B, 14C, 14D terminates at the outlet 16 such that first/second filler material 7, 8 accumulates at the outlet 16 until it is received in a receiving portion 26 of the drum 12. Optionally, gas flow in each channel 14A, 14B, 14C, 14D may vent at the outlet 16 via a filter (not shown) that is substantially impermeable to the first/second filler material 7, 8. In the above described embodiment, the suction ports 25 are arranged in a helical formation. As the drum 12 IS rotated, successive suction ports 25 overlie the double- length plugs P to apply suction thereto. The helical formation of the suction ports 25 means that successive suction ports 25 are axially further forward in the direction of the conveyance path C. Rotation of the drum 12 and operation of the conveyance apparatus 13 are synchronised such that successive suction ports 25 advance in the direction of the conveyance path C at the same speed that the double-length plugs P and web W are transported along the conveyance path C. This configuration allows for suction to be reliably applied to the double-length plugs P by the suction ports 25 even when the plugs P are moved along the conveyance path C continuously at high speed.

In alternative embodiments (not shown), the suction ports 25 are not arranged in a helical formation. For instance, the suction ports 25 may instead be arranged in rings about the central axis Y-Y of the drum 12 such that the suction ports 25 of each ring are aligned in the axial direction. Such an arrangement may require for the plugs P to be moved along the conveyance path C at a lower speed and/ or intermittently conveyed along the conveyance path C such that conveyance is halted temporarily to allow for suction to be applied to each plug P. In the above embodiment, the receiving portions 26 of the drum 12 are arranged in one or more a helical formations. As the drum 12 is rotated, successive receiving portions 26 overlie the spaces S to be filled with the first and second filler material 7, 8. The helical formation of the receiving portions 26 means that successive receiving portions 26 are axially further forward in the direction of the conveyance path C. Rotation of the drum 12 and operation of the conveyance apparatus 13 are synchronised such that successive receiving portions 26 advance in the direction of the conveyance path C at the same speed that the double-length plugs P and web W are transported along the conveyance path C. This configuration allows for first and second filler material 7, 8 to be reliably dispensed into the spaces S between adjacent double-length plugs P even when the plugs P are moved along the conveyance path C continuously at high speed. However, in an alternative embodiment (not shown), the receiving portions 26 are not arranged in a helical formation. For instance, the receiving portions 26 may instead be arranged in one or more rings about the central axis Y-Y of the drum 12 such that the receiving portions 26 of each ring are aligned in the axial direction. In the above described embodiment, the drum 12 comprises a plurality of suction ports 25. However, in other embodiments (not shown), the drum 12 comprises a single suction port. For example, the suction port may comprise a groove that extends about the central axis Y-Y of the drum 12. In one such embodiment (not shown), the groove is a helical groove extending in a helical formation about the central axis Y-Y.

In the above described embodiments, the filling apparatus 10 is configured to convey double-length plugs P of filter material on a web W of wrapping material along a conveyance path C and to deposit a filler material 7, 8 in the spaces S between adjacent double-length plugs P as the spaces S move along the conveyance path C. However, in alternative embodiments (not shown), the filling apparatus 10 is configured to convey single-length plugs 5A, 5B of filter material on a web W of wrapping material along a conveyance path C and to deposit a filler material 7, 8 in the spaces S between adjacent single-length plugs 5A, 5B as the spaces S move along the conveyance path C. The web W is then cut to form a smoking article component 3 comprising the single-length plugs 5A, 5B and filler material 7, 8 wrapped in a plug wrap 9.

In the above described embodiments, the conveyance apparatus 13 of the filling apparatus 10 comprises a garniture tongue and a garniture belt that is driven by a belt drive. However, in other embodiments (not shown), the conveyance apparatus has a different arrangement, for example, comprising a drum or conveyor belt that is configured to advance the double-length plugs P and web W along a conveyance path.

In one such embodiment, the double-length plugs P are disposed on a wrapper that is located in the flute of a drum that is rotated to move the plugs and wrapper along an arcuate conveyance path. The first/ second filler material is fed onto the wrapper between the plugs when the drum is rotated to move the wrapper and plugs along the conveyance path.

In the above described embodiments, the drum 12 comprises one or more suction ports 25 configured to apply suction to one or more plugs P to draw filler material 7, 8 into the spaces S between adjacent plugs P. However, in an alternative embodiment (not shown) the suction ports are omitted. In some embodiments (not shown), air is blown through the blocking member 32 to discharge the filler material 7, 8 from each receiving portion 26 when the receiving portion 26 is in the unloading position. In other embodiments, the filler material 7, 8 is deposited from each receiving portion 26 under the effect of gravity. In the above described embodiments, the filler material 7, 8 is retained in the receiving portions 26 by suction applied via the gas permeable member 31 that fluidly communicates each aperture 27 with the suction chamber 24. However, in an alternative embodiment, the filler material 7,8 may alternatively, or additionally, be retained in the receiving portions 26 by a shroud that covers a portion of the peripheral surface 12A of the drum 12 as each receiving portion 26 moves between the loading and unloading positions. In embodiments wherein the first and/or second filler material 78 comprises an additive, the additive may comprise a flavourant. As used herein, the terms“flavour” and“flavourant” refer to materials which, where local regulations permit, may be used to create a desired taste or aroma in a product for adult consumers. They may include extracts (e.g., licorice, hydrangea, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, menthol, Japanese mint, aniseed, cinnamon, herb, wintergreen, cherry, berry, peach, apple, Drambuie, bourbon, scotch, whiskey, spearmint, peppermint, lavender, cardamon, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, cassia, caraway, cognac, jasmine, ylang-ylang, sage, fennel, piment, ginger, anise, coriander, coffee, or a mint oil from any species of the genus Mentha), flavour enhancers, bitterness receptor site blockers, sensorial receptor site activators or stimulators, sugars and/or sugar substitutes (e.g., sucralose, acesulfame potassium, aspartame, saccharine, cyclamates, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives such as charcoal, chlorophyll, minerals, botanicals, or breath freshening agents. They maybe imitation, synthetic or natural ingredients or blends thereof. They may be in any suitable form, for example, oil, liquid, or powder.

In the present embodiment, the smoking article component 3 is in the form of a smoking article filter 3. However, it should be recognised that in alternative

embodiments (not shown) the smoking article component 3 is of a different configuration.

As used herein, the term“tobacco industry product” is intended to include smoking articles comprising combustible smoking articles such as cigarettes, cigarillos, cigars, tobacco for pipes or for roll-your-own cigarettes, (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes or other smokable material), electronic smoking articles such as e-cigarettes, heating devices that release compounds from substrate materials without burning such as tobacco heating products, hybrid systems to generate aerosol from a combination of substrate materials, for example hybrid systems containing a liquid or gel or solid substrate; and aerosol-free nicotine delivery articles such as lozenges, gums, patches, articles comprising breathable powders and smokeless tobacco products such as snus and snuff. In one embodiment, the tobacco industry product is a smoking article for combustion, selected from the group consisting of a cigarette, a cigarillo and a cigar. In one embodiment, the tobacco industry product is a non-combustible smoking article.

In one embodiment the tobacco industry product is a heating device which releases compounds by heating, but not burning, a substrate material. The material may be for example tobacco or other non-tobacco products, which may or may not contain nicotine. In one embodiment the heating device is a tobacco heating device. In one embodiment, the apparatus or method is used to manufacture a consumable for a heating device.

In another embodiment the tobacco industry product is a hybrid system to generate aerosol by heating, but not burning, a combination of substrate materials. The substrate materials may comprise for example solid, liquid or gel which may or may not contain nicotine. In one embodiment, the hybrid system comprises a liquid or gel substrate and a solid substrate. The solid substrate may be for example tobacco or other non-tobacco products, which may or may not contain nicotine. In one embodiment the hybrid system comprises a liquid or gel substrate and tobacco.

In order to address various issues and advance the art, the entirety of this disclosure shows by way of illustration various embodiments in which the claimed invention(s) maybe practiced and provide for a superior feeding apparatus and method of supplying tobacco industry product filler material from a source of tobacco industry product filler material to a drum. The advantages and features of the disclosure are of a

representative sample of embodiments only, and are not exhaustive and/or exclusive. They are presented only to assist in understanding and teach the claimed features. It is to be understood that advantages, embodiments, examples, functions, features, structures, and/or other aspects of the disclosure are not to be considered limitations on the disclosure as defined by the claims or limitations on equivalents to the claims, and that other embodiments may be utilised and modifications may be made without departing from the scope and/or spirit of the disclosure. Various embodiments may suitably comprise, consist of, or consist essentially of, various combinations of the disclosed elements, components, features, parts, steps, means, etc. In addition, the disclosure includes other inventions not presently claimed, but which may be claimed in future.