Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 401 - 450 out of 5,676

Document Document Title
WO/1998/046404A1
The invention relates to procedures and arrangements for preventing or releasing a blockage occurring in a flow of tree trunks (3) supplied to a wood chipper (2) via a feed hopper (1), and for securing an uninterrupted flow of timber to ...  
WO/1998/036883A1
A tool (10) for rock breaking, log splitting and similar operations includes a plate (12) having a plurality of identical apertures (14) formed therethrough. A frame (16) comprised of a skirt (18) formed from lengths of angle iron and a ...  
WO/1998/033969A1
The invention relates to a method and to an arrangement for obtaining wood in which the tracheids have less ability to bind to each other. The end surface of the wood is irradiated with pulsed laser light of such strength, and with such ...  
WO/1998/032576A1
The invention concerns a machine for cleaving wood, said machine using a tapered screw (8) driven in rotation, to split the wood, characterised in that it mainly comprises: so-called first means, in the form of grips (15 and 16) for gras...  
WO/1998/025743A1
The invention relates to an apparatus for removing barks from a wood- and bark-containing log flow to be fed into the apparatus. The apparatus includes a number of bark separation units, each of said bark separation units comprising an a...  
WO/1998/015395A1
This invention relates to wood chippers or vegetation grinders of the kind used to cut or shred vegetation, particularly trees, into small chips. The invention is particularly directed to control means (36, 9a, 1) allowing the operator t...  
WO/1998/012030A1
A method to produce solid glued woodboard (4) out of the glued wood element (1), which is formed by glueing together sawn timber boards (2) or like them, when not glued sawn timber board, free surfaces form glued wood elements main surfa...  
WO/1998/009776A1
The invention concerns an impact tool, in which there is a tube (3), a blade component (4) attached to its lower end and an impact bar (2) component that partly enters the tube. The invention also concerns a method and accessory for spli...  
WO/1998/001272A1
The invention concerns a knife disc arrangement of a disc chipper, said arrangement comprising a rotating knife disc (1), knives (3), wear plates (4) and supporting strips (11) supporting the wear plates. The invention also concerns a hi...  
WO/1998/001271A1
A method and apparatus for pretreament of logs difficult to debark. The skin of the log is shredded or cut by means of blades (10, 11, 12) of shredding members, said blades getting into contact with the lower surface of the logs through ...  
WO/1998/000271A1
The invention relates to a method for renovating an inner drum shell surface (4) of a barking drum (1), said barking drum comprising a cylindrical drum, rotatable around its substantially horizontally disposed centre axis (2), through wh...  
WO/1997/049531A2
In a method for manufacturing bamboo chips, first the nodes may be removed from the bamboo culms by sawing through the bamboo culms at each side of a node, and then the bamboo culms are peeled preferably by bringing the bamboo culms on r...  
WO/1997/048533A1
The invention relates to a disc (1) for a disc chipper, said disc (1) being adapted to rotate upon a chipper shaft (2) and provided with a number of tools for producing chips. The disc (1) is composed of two or more sector-shaped blocks ...  
WO/1997/046357A1
The invention relates to a process for separating the surface layer from the core of a piece of wood. During said process, the surface of the piece of wood receives prior mechanical damage, e.g. it is roughened, and subsequently the resu...  
WO/1997/032699A1
A novel method and apparatus for cutting veneer sheets from a tapered flitch (16) (one-half of a veneer log which has been sawn in half longitudinally) that places the veneer producing face of a tapered flitch in a stable, parallel relat...  
WO/1997/022449A1
A chipper (1) intended for oversized chips comprises a housing (2) having an inlet (3) of the material to be chipped, an outlet (4) of the chipped material, a rotatable splitting drum (5) within the housing (2), the drum being rotatable ...  
WO/1997/019795A1
A veneer slicer (10) includes a flitch drive assembly for reciprocating a flitch table (30). The drive assembly includes a timing belt (74) coupling a drive motor output shaft (42) to at least one driven wheel (50), wherein the driven wh...  
WO/1997/018069A1
A vacuum valve (40) includes a valve body (42) with a cylindrical sidewall (44) having a vacuum inlet (46) coupled to a vacuum source and a vacuum outlet (48). A piston (74) is disposed within the valve body (42) for movement between an ...  
WO/1997/017177A1
Process for the manufacturing of wood chips as raw material in the production of mechanical pulp in order to reduce the energy consumption in the production of pulp, characterized in that the wood fibres, including the summerwood fibres,...  
WO/1997/000762A1
A replaceable cutting piece and a cutting arm for a debarking cutter for a debarking machine of a hollow-rotor type, which cutting piece (6) and cutting arm (4) comprise supporting surfaces and abutment surfaces for receiving loads actin...  
WO/1996/038273A1
The present invention includes apparatus for retaining a tapered flitch (13) having a generally semi-cylindrical veneer-producing zone (21), on a staylog (10) for movement past a veneer-slicing knife, wherein the tapered flitch (13) incl...  
WO/1996/038274A1
The present invention includes an apparatus for preparing a flitch (13) for slicing where the flitch includes a staylog-engaging zone (23). The apparatus comprises a drill mechanism (102) for drilling a plurality of holes (90, 92) in the...  
WO/1996/032234A1
The invention concerns a tool head for shaping machine designed to machine the side segments of tree trunks. The tool head has a rotationally driven main body (1) with several groups of chipper blades (2, 3) round its circumference. The ...  
WO/1996/028287A1
A method of increasing the durability of the cutting point (8) of a blade, and a blade. A compression stress (P10) is formed in at least one surface (10 or 6) joining the point (8) of the blade (1) by cold working the blade.  
WO/1996/026817A1
A method for mounting a wear plate and a knife base on a disc chipper's disc, and a disc chipper. The wear plate (6) rests against the knife base (4) via two counter surfaces (12), one of which forms in the wear plate (6) a groove in par...  
WO/1996/024473A1
A process and device are disclosed for manufacturing strands from round wood. The round wood is always an individual tree trunk (30). The tree trunk (30) is fed by a conveyor (50) to a chipping device (51, 52). The chipping device (51, 5...  
WO/1996/022176A1
The invention relates to a method and apparatus for removing bark balls from a log flow traveling on a conveyor (3) which extends from a debarking drum (1) to a chipper (2), said conveyor (3) including a roller assembly (4) provided with...  
WO/1996/018481A2
High powered lasers are used to score the bark (28) on logs (26) before they are mechanically debarked. Typical of the lasers employed are multi-kilowatt CO2 industrial lasers. A high powered laser beam (20) is brought to a focus just ab...  
WO/1996/015886A1
This invention relates to a device in a barking unit, which comprises a barking drum which is placed on two bogies, positioned at a distance from each other, each bogie comprising a travelling wheel and a driving wheel, positioned at a d...  
WO/1996/009922A1
The present invention relates to a hand-operated wood-splitter with striking weight (1) movable along a rod (2) connected at its lower end to an axe or splitting wedge (5). The invention is characterized in that the rod (2) for the strik...  
WO/1996/005033A1
An improved knife clamping system for use in an apparatus for processing wood, such as a flaker, chipper or waferizer, that employs a rotary disc or ring (2), cutting knives (10), holding locations (8) mounted on the disc or ring (2) to ...  
WO/1996/000639A1
A knife for disk type chip cutter machines with a circular rotatable cutter disk (10) on its first axial side being provided with several knives running from the disk centre to its periphery. An opening (14) is provided in the disk in co...  
WO/1995/034415A1
The invention relates to an apparatus for producing sideways curved woodwool fibres. The apparatus comprises a flat rotatable disc (2), in the surface of which is provided at least one knife assembly (7) comprising a thickness knife (8) ...  
WO/1995/034416A1
The invention relates to a knife assembly for slicing woodwool, comprising a knife with a chip surface (1), a clearance surface (2) and a cutting edge (3), defined by the intersection between both surfaces. The knife assembly is characte...  
WO/1995/027410A1
The invention pertains to an apparatus for peeling oblong vegetable and/or agricultural products (1), having at least two pairs of rollers (2) to convey the product (1) and a cutter unit (3) situated between the pairs of rollers (2), cha...  
WO/1995/024998A1
A process is disclosed for recovering chips and fibres from residues of timber-derived materials, old pieces of furniture, production residues, waste and other timber-containing materials glued with urea-formaldehyde binders or other bin...  
WO/1995/024300A1
The invention relates to surface-working of logs, such as pillars or beams, with a rotating cutting-edge unit (23). These days the working is done in such a way that the log to be worked is rotating. The efficiency is low in this case, e...  
WO/1995/017619A1
Chain flail apparatus, particularly for de-barking felled trees and logs is provided with flail chain lengths attached to a rotable drum. The flail chain lengths are composed of interconnected links of a form enhancing the lateral and to...  
WO/1995/014133A1
A wood chip cracking device (20) for use in papermaking employs closely spaced, oppositely rotating rolls (24, 26) which have pyramid-shaped projections (38) on the roll surfaces (32, 34). This chip destructuring apparatus (20) is render...  
WO/1995/011117A1
A butt reducing machine comprises axially spaced-apart support means (12, 13) which together form a support on which logs (7) may be placed in a position in which a butt end part (7') protrudes into the region above a mill (8), at the sa...  
WO/1995/011118A1
The invention relates to a cutting disc for barking and hewing timber in order to provide round timber usable for instance in log cabins. The cutting disc, designed to be connected for instance to a motor saw, comprises a rotatable body,...  
WO/1995/004596A1
This invention pertains to a novel wood fibre debris processor. More particularly, this invention relates to an apparatus which can simultaneously segregate or classify and debark in a singular process wood fibre debris which results fro...  
WO/1995/003158A1
The invention relates to a bearing and/or drive system for a rotating drum (1), especially a peeling drum, in which the drive force is preferably transmitted by friction. The main object of the invention is to provide a bearing and/or dr...  
WO/1995/001857A1
This invention relates to a knife system for a machine used in wood chipping, a knife (10), a guide component (14) and a filler part (24) and a method of exchanging knives. The system comprises at least one turnable or at least two excha...  
WO/1994/027816A1
Methods for producing a chipped wood surfacing material having unusually high shock absorbing capabilities are provided. The chipped wood is processed in order to give it a very high shock absorbing quality. This invention also relates t...  
WO/1994/026484A1
A debarker is described, with converging blades, with hydraulic and/or penumatic control, to extract the bark from pruned branches or from branches and logs of felled trees. Small stumps obtained by dividing the pruned branches or the lo...  
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 ...  

Matches 401 - 450 out of 5,676