FAST S (SE)
| US3613891A | 1971-10-19 | |||
| US3730346A | 1973-05-01 | |||
| SE394204B | 1977-06-13 | |||
| DE1708518A1 | 1971-04-29 | |||
| SE77033694A |
| 1. | Apparatus for removing oil and other floating materials from a water surface, comprising a seagoing boat and oil removal means attached to the boat, c h a r a c t e r i z e in that the boat (10) is provided with an oil removal casset (11) detachably attached to the boat, the oil removal means (13, 14) being positioned on the cassette (11). |
| 2. | Apparatus according to claim 1, c h a r a c t e r i z e in that the cassette (11) is detachably attached to the stem or bow part of the boat (10) and is provided with removal means (13* 1 ) for removing oil during the propulsion of the boat through the oilcovered water. |
| 3. | Apparatus according to claim 1 or 2, c h a r a c t e r z e d in that the stern or bow part of the cassette (11) is provided with attachment means in the form of a number of separated projecting parts (17) extending outwardly which projecting parts are joined by a bar (18) and are arranged t be detachably attached to a fork (19) fastened to the stem or bow part of the boat. |
| 4. | Apparatus according to any one of the claims 1 3* c h a r a c t e r i z e d in that the cassette comprises tw pontoons (12) and therebetween centrally disposed oil remova means (13* 14), the stern parts of the pontoons (12) being rearwardly narrowed, so that the cassette (11) can follow th movement of the water independently of the pattern of moveme of the boat (10). |
| 5. | Apparatus according to any one of the claims 1 4, c h a r a c t e r i z e d in that the fore part of the boat (10) is provided with a superstructure (21) for reception an transport of the cassette (11). |
This invention relates to an oil removal apparatus which is characterized of the fact that it comprises a boat and one to the boat detachably attached oil removal cassette.
The cassette is intended to remove oil from harbours and open sea during the propulsion of the boat. The intention is also that the cassette shall be easily transportable, for instance by a helicopter, to different scenes of accident, where the cassette shall be easily attachable to the fore part or any other part of the boat if that is desirable. To make that attachment possible the stern part of the oil cassette is provided with attachment means which are intended to be fastened to the sea-going boat. Other characteristic features of the invention are more clearly defined in the following claims.
The invention is more clearly described below in connection to the accompanying drawings, in which
Pig. 1 is a side view of a boat with one to the stem of the boat attached oil removal cassette according to a possible embodiment of the invention, and
Pig. 2 is a plan view of the apparatus according to Fig. 1.
In the Figs, is shown the, fore part of a sea-going boat 10, to which the above-mentioned oil removal cassette 11 is detachably attached. The oil removal cassette 11 comprises a buoyant body made of two parallel pontoons 12 and therebetween centrally disposed band conveyors 13_»1^ for oil collection from the water surface. The boat 10 is intended to be driven by propellers 15 through the oilcovered water with the bands of the conveyors 1$ ~ > 1 in movement. The conveyors 1,5 * 1^ can be arranged in different ways in relation to the pontoons 12. Thus, in the shown embo-
diment the foremost positioned conveyors 13 in relation to the direction of motion of the boat have been obliquely ori¬ ented in relation to the horizontal plane of the cassette. Moreover, the bands of the conveyors 1 > have been perforated for collection of thick oil spills, while the conveyor 14 positioned at the stern of the cassette is oriented perpen¬ dicularly to the cassette for collection of thin oil. A container iβ is arranged for collecting removed oil. It is, however, to be understood that also means formed in another way can be arranged on the cassette 11 for the oil collection.
According to the invention the oil removal cassette 11 is deta ably attached to the boat 10, preferably to its fore end. For this purpose the stern part of the cassette is provided with attachment means, which in the shown embodiment comprises a number of separated plates 17 or similar extending astern whic plates are joined by means of a transverse cylindrical bar 18. In order to make it possible to lock the cassette to the boat the fore end of the boat is provided with a fork 19, the prong 20 of which are oriented straightly upwards and are so positio that they are inserted between the plates 17 of the cassette 1 when connecting the cassette 11 to the boat 10. Moreover, the stern parts of the pontoons 12 have been rearwardly narrowed. Due to this mentioned performance that advantage is attained that the cassette 11 can follow the movement of the water inde¬ pendently of the pattern of movement of the boat, so that the conveyors positioned on the cassette always collect oil from the surface layer of the water, where the concentration of pollutions and oil is large.
In order to facilitate the transport of the cassette on the boa 10, the boat at the fore end part can be provided with a super¬ structure 21 inside which the cassette 11 can be received as ha been shown by broken line.s in Fig. 1.
It is to be understood that the invention can be modified withi
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the scope of the appended claims. Thus, instead of locking by means of a fork it is possible to use different types of hooks or other suitable quick couplings between the boat 10 and the cassette 11. The precedent condition, however, is that the per¬ formance of the locking means is such that the cassette is given a certain freedom of movement independently of the pattern of movement of the boat during the propulsion of the boat.
It is also to be understood that instead of being fastened to the stem part of the boat (10), the oil removal cassette (11) can be fastened to the stern part or the bow part of the boat (10). In the last mentioned case the bow part of the cassette is provided with outwardly extending plates which are joined by a bar. This bar is connected to forks in the same way as has been shown in the drawings, which forks are fastened to the bow part of the boat. It ought to be observed that the attach¬ ment means of the boat 10 can change places with the attach¬ ment means of the cassette 11 without leaving the basic idea of the invention.