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Patent Searching and Data


Matches 451 - 500 out of 5,682

Document Document Title
WO/1994/020272A1
The invention relates to an apparatus for debarking logs individually with the aid of high-pressure water jets. The spray nozzles are intended to spray water in focused jets against the log at the same time as the log moves past the spra...  
WO/1994/019158A1
An apparatus (10) for removing the bark of whole, or tree-length, logs has an open frame (12) with a feed end (28), a discharge end (30), a base and two generally sloping sides, and a plurality of spaced-apart conveyor assemblies (20) po...  
WO/1994/017311A1
A driving device comprises a source of hydraulic fluid under pressure, a working arrangement (6) having a working chamber (7) intended for receiving hydraulic fluid and a working member (8) adapted to be put in motion on respective fluid...  
WO/1994/013442A1
A machine for reducing the size of vegetation to wood chips is provided in which vegetation is introduced to the machine via a roller (13, 18) and conveyor (14) arrangement and is reduced in size to wood chips by a rotating drum (30) is ...  
WO/1994/008766A1
The novel derived timber product consists of slim, sheet-like components (9) which are arranged to overlap primarily in a scale-like array substantially parallel to the surface of the sheet or moulding-like derived timber product and fir...  
WO/1994/007355A1
A thinning machine comprising a chipping unit (9) with a felling boom (5), a tractor means (8) and a platform (3). The chipping unit (9) is attachable to and detachable from the tractor means (8) by fastening means (7a, 7b) in order that...  
WO/1994/005474A1
The invention relates to a method in the process of timber debarking, whereby the debarking apparatus used comprises a rotary cylindrical drum (2), preferably equipped with transfer elements therein. The logs are conveyed from the feed e...  
WO/1993/020986A1
Described is a device for cutting sheets of wood off square timber (2) without forming chips, the device having two measurement devices (3, 4) which determine the taper of the timber (2) in the transverse direction. A cutter blade (10) w...  
WO/1993/018896A1
A mechanized disc flaker for producing curled wood flakes having a rotatable disc plate (10), and one or more cutting knives (22) mounted to the disc plate so as to provide for a slight "rake angle" defined in accordance with the inventi...  
WO/1993/017844A1
A log debarker for debarking a lengthwise-moving log includes a pair of debarking subassemblies (12, 12A) each including a pair of cylindrically concave, rotating cutter elements (20, 20A) juxtaposed on opposite sides of the log and form...  
WO/1993/015886A1
A hydraulically operated tool comprises two working members which are intended to be moved towards one another during a working stroke so as to work a workpiece located therebetween. At least one of the working members is driven by a pis...  
WO/1993/013921A1
In a device for the removal, without shavings, of strips (2) from squared timber (1), an endless feed belt (6) is fitted in an adjustable-height frame (7). The feed belt (6) presses the squared timber (1) in several passes against a blad...  
WO/1993/008002A1
Procedure and apparatus for sawing a square timber, the apparatus comprising a feed mechanism (1), a chipper (2) and a sawing apparatus (3) in such manner that the feed mechanism has been arranged to feed the square timber into the chipp...  
WO/1993/005938A1
A device for the thermal pretreatment of wooden blanks (11) has a drum (1) with radial compartments (10) filled with a thermal treatment medium in which the wooden blanks (12) are arranged. An inner drum (8), at the outer circumference o...  
WO/1993/001033A1
In the method proposed, the wood chips are heated with steam under pressure and at the same time comminuted to convert them to fibres. The fibres are blown down a pipe (3), during which they are allowed to expand, into a drier (6) where ...  
WO/1993/000206A1
The invention concerns a veneer cutter for cutting off the faulty spots, and for cutting the veneer into sheets at certain intervals. The cutter is furnished with rotatable blade, which consists of two independently controllable sections.  
WO/1992/021490A1
A process is disclosed for producing small wooden boards by chipless cutting. A strip of timber (1) lying on a forward-feed path (3) is moved by a forward-feeding, pressing arrangement (18) against a cutting arrangement (7), so that the ...  
WO/1992/021491A1
Apparatus for splitting wood is disclosed comprising an arm (34) carrying a blade (52) operated by a hydraulic ram (40) mounted in an arch (22) forming part of a frame (12) which can be mounted on a lifting mechanism of a vehicle such as...  
WO/1992/020501A1
A veneer slicer having a flitch (22, 24, 26, 28) carried by a rotating carriage (12). A knife and pressure bar (42) are carried on a reciprocating carriage (40) which moves back and forth relative to the carriage (12). The carriage (12) ...  
WO/1992/019702A1
A method and machine for making a new and improved compressed wood fuel pellet are provided. The method has the steps of severing a wafer of tree trunk or branch, punching or splitting a small portion along the grain in the wafer, confin...  
WO/1992/018305A1
A gas spring for barking machines comprises at least one elastic cushion or bellows (12, 12') which is filled with gas and operates between a stationary abutment (13) on a rotor of the machine and a supporting plate (15) connected to a d...  
WO/1992/018304A1
A rotation-ring barker comprises a stator (7) and a rotor (8) which is mounted so as to be rotatable in relation to the stator and which has an opening (4) for a log to pass through. A number of pivotable processing tools (2) are connect...  
WO/1992/013687A1
Decorative shaped wood shavings are produced by forming green wood into curled shavings and subsequently drying those shavings, suitably after dying the curled green shavings.  
WO/1992/013686A1
The invention relates to a method and an arrangement for removing bark when handling a trunk (A) in a timber harvester, especially in connection with lopping. To remove the bark, the axis of rotation of means (1) for feeding the trunk (A...  
WO/1992/013685A1
A canter for processing a log by directly cutting into chips the material removed from the log, comprises a rotatable canter member which essentially has the shape of a truncated cone and on whose circumferential surface are provided rep...  
WO/1992/011979A1
The invention concerns a cutter for cutting a moving web at rightangles at selectable cutting intervals. The cutting action is executed by a rotatable blade pressed against the web. The rotational direction and speed of the blade are con...  
WO/1992/011980A1
A wood splitter comprises a fixedly mounted splitting wedge (2) and a pressure plate (4) which is driven by means of hydraulic devices (5, 6) so as to feed pieces of wood (3) onto the splitting wedge. The hydraulic fluid is delivered to ...  
WO/1992/011942A1
A comminutor (1) for reducing large diameter wood products and stamps to size, comprised of a reduction chamber (25), with an impact rotor (50) positioned concentrically therein, in combination with a housing (10), drive motor (5) and in...  
WO/1992/011119A1
A barking tool for rotation-ring barking machines comprises a swinging arm (2) which has a front (31) facing the feeding direction of the logs fed to the machine and having a climb-up edge (15), as well as a back (30) opposite to the fro...  
WO/1992/010342A1
By a method of continuously processing chopsticks (35), the outer shape of which is defined by two mutually parallel surfaces and two opposing, plane, oblique surfaces (5, 6) inclining towards one another by the same inclination seen rel...  
WO/1992/005020A1
A device for the chip-free cutting of strips (3) from square timber (1) has a feed device (5) which conveys the square timber (1) longitudinally and at the same time presses it against a facing timber guide surface (9). The cutting edge ...  
WO/1991/017030A1
Procedure and apparatus for controlling the barking process in a barking drum, which procedure uses measuring devices (13a, 13b, 14a, 14b) placed in conjunction with the barking drum (1) to measure the weight of the drum. The measurement...  
WO/1991/016983A1
A chip breaker with breaking units (5) arranged on several rotary carrier discs (3a, 3b), each forming a set of tools (6a, 6b, ...) and with cutting strips (7, 8) secured to the housing is to be optimised to reduce the driving power need...  
WO/1991/012943A1
A device intended to bark logs and similar including: several support wheels (4, 8) on each side of a log (1), set on support arms (9, 7) and arranged to be turnable at an angle in relation to the log (1) to carry the log in a feed line ...  
WO/1991/010544A1
Method and apparatus for converting a tree (6) into wood chips by means of a chipping unit (4) coupled to a vehicle (1). Chipping unit (4) coupled to vehicle (1) is taken to the tree base (6) and by means of its gripping elements (10, 11...  
WO/1991/008879A1
Procedure and apparatus for determining the ending instant of the block rounding stage in a veneer-cutting machine, in which procedure the sound produced by the cutting during the rounding stage is monitored by means of a sensor (12). Th...  
WO/1991/008880A1
A method of and a device for working a longitudinal groove in natural wall logs. Drawbacks of the prior art methods of industrial working of logs are uneconomic use of raw material and unsuitability for working a longitudinal groove in a...  
WO/1991/007260A1
An apparatus for guiding a piece of timber, especially a block (2) to be machined in a chipper canter. A chain conveyor (10) for conveying the block is provided in front of the chipper canter and at least one press roll (24, 26), for pre...  
WO/1991/005641A1
A cutting cylinder (3) is proposed which has a fillet (40) arranged inside an acceptance groove (20-25) for easier handling.  
WO/1990/015702A1
An arrangement in wood chippers of the kind which includes a rotatable body, such as a disc, on which knives (12) are secured with the aid of knive holders (10). Mounted adjacent the knives and the knive holders are wear plates (24) whic...  
WO/1990/015900A1
The invention, as a new industrial product, relates to a porous, micronized, low density vegetable filler with a controlled particle size and low specific physical and hydraulic surfaces. This vegetable filler is characterized in that (1...  
WO/1990/003254A1
The present devices for branch trimming of tree are expensive and the branch trimming performed manually is slow and dangerous. To the device in accordance with the invention belong a frame (1), which is formed from a bent shaped bottom ...  
WO/1989/012535A1
The invention concerns a spindle drive for a veneer lathe. In view of reducing the mobile masses of the drive gear equipment and making the lathe better adaptable to different log lengths, the opposite spindles in the lathe are provided ...  
WO/1989/011383A1
Apparatus and method for spreading and refining natural wood (13) which has been crushed in a pair of crushing rollers, to form a flexible open lattice work web (14) of naturally interconnected wood strands which are generally aligned al...  
WO/1989/010824A1
Sawing machine for the sawing of boards or equivalent from logs (1), said machine consisting of log feeding devices (2), chipping cutter heads (5) for chipping the log surface, and disc saw units (8) for sawing the logs in the lengthwise...  
WO/1989/009685A1
A driving device comprises at least one chain (16) in the form of a closed loop. The chain is connected to at least one driving member arranged to cause the chain to orbit. Furthermore, the chain is laid over diverting members which in c...  
WO/1989/001855A1
This invention concerns a feeding wheel for the use in wood processors and wood harvesters for the feeding of wood trunks (6) past debranching knives (7). The feeder wheel comprises an inner steel cylinder (2) provided with an outer thic...  
WO/1989/001854A1
A feed roller for a device for processing tree trunks, in particular for limbing and sawing, has an elastic casing in which a plurality of drivers is arranged equidistantly over the casing surface. Each driver is held in the casing by a ...  
WO/1988/008751A1
The disclosure relates to an apparatus for granulating excess material in the production of plastic articles by means of knives (41) disposed at one end of a feeder screw (20) and cooperating with a number of preferably fixed counter kni...  
WO/1988/001925A1
A feeding device for longitudinally feeding a tree stem comprises a breast part (2, 2') to be applied against the stem, and two separate feeding units (3, 3'), suitably in the form of endless chains which are movable towards and away fro...  

Matches 451 - 500 out of 5,682