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Class 144/250.17 - Chain


Subclass of Class 144 - Woodworking
Definition: Presser comprised of a series of links of material joined
No. of patents: 34
Last issue date: 03/06/2007


NumberTitleIssue Date
7185686Feeder device in a timber harvester
The invention relates to a feeder device in a timber harvester, which includes a frame, a 3-row roller chain arranged to be rotated around a drive sprocket, a turnover member and roll guides, which roll guides extend for a great length of a gripping side of the feed...
03/06/2007
6035910Process and apparatus for producing narrow veneer strips
The invention relates to a process and apparatus for producing veneer strips of predetermined length, width and thickness from wood. The apparatus has a severing tool for dividing the wood to be machined into boards, a clamp for clamping the boards, and a...
03/14/2000
5996658Feed roller
The present invention relates to a feed roller (1) by means of which a felled tree (2) trunk is fed into a timber harvester for delimbing. The apparatus comprises a drive wheel (4) and at least one transmission means (5) arranged at the outer circumferenc...
12/07/1999
5947174Drum debarker outfeed spool
An apparatus for debarking roundwood is provided which has a rotary drum debarker having conveyor means to move roundwood into and through the drum debarker, and, furthermore, has a rotable outfeed spool located at the outlet of the drum debarker to conta...
09/07/1999
5884545Log sawing assembly
There is provided a device for sawing logs to a predetermined length which includes a log lead-in support member, a log support frame, a log cutting station and a log collection deck. The log support frame includes a front end, a rear end, opposite sides ...
03/23/1999
5735325Tree feeding device of a tree handling machine
A tree feeding device of a tree handling machine has a saw (8) for cross-cutting of a tree trunk, a conveying unit (2) for moving the tree trunk, an actuator (4) for positioning the conveying unit (2) as well as delimbing blades (6) for delimbing the tree...
04/07/1998
5680888Saw trimmer and method for trimming lumber pieces
The saw trimmer is used for trimming lumber pieces. The saw trimmer comprises a conveyor for longitudinally moving lumber pieces across the saw trimmer. The lumber pieces are transversely disposed on the conveyor with reference to the longitudinal directi...
10/28/1997
5669428Conveyor system for log debarking and chipping
The present invention relates to a conveyor system for log debarking and chipping. Specifically, a conveyor system for log debarking and chipping is provided that, in accordance with the present invention, conveys tree-length logs to and into a debarking ...
09/23/1997
5299610Process and device for the continuous chipping of long timbers
A process and a device for the continuous chipping of timbers of different length. To increase the chipping performance, in the execution of the sawing cut or directly thereafter, at least one supporting element for supporting the leading end face of a lo...
04/05/1994
5263522Apparatus for removing bark from whole logs
An apparatus for removing the bark of whole, or tree-length, logs has an open frame with a feed end, a discharge end, a base and two generally sloping sides, and a plurality of spaced-apart conveyor assemblies positioned along one side of the frame, each ...
11/23/1993
5219010Device for feeding elongated objects
A device for feeding tree trunks comprises a body structure (1) and support members (2) arranged on the body structure and supporting members (3) for feeding a tree trunk located between the feed members. The support members with associated feed members a...
06/15/1993
5201354Feed system with improved prepositioning
A feed system with improved preposition is shown and describe wherein a prepositioning stage is located vertically above a feed stage such that movement of a wood product from the prepositioning stage to the feed stage corresponds to movement of the wood ...
04/13/1993
5186227Driving device
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 combination with th...
02/16/1993
5044412Method and apparatus for debarking logs
Apparatus for debarking logs comprising a generally horizontal rotary drum debarker having an inlet end, power drive device for continuously rotating the drum of the debarker generally about a horizontal axis, generally horizontal main conveyor element fo...
09/03/1991
4949769Log delivery mechanism
A log-positioning conveyor (10) includes a pair of spaced-apart lug-supporting frames (12, 14) and an interconnecting center frame (16). Vertical and horizontal cylinders (42, 44, 46, 48), one of each at each end of the conveyor, are interconnected betwee...
08/21/1990
4886156Log conveyor system
A log-transporting conveyor chain is described. The conveyor chain incorporates log-transporting links with attached guide blocks which, in combination with an enclosing chain raceway, prevent undesirable play in the chain....
12/12/1989
4881584Infeed conveyor for saw
The invention is an infeed conveyor for a saw which enables feeding sweepy cants or logs in such a manner as to achieve a significant improvement in lumber recovery. The conveyor has at least one portion which can be configured between a straight line tra...
11/21/1989
4840015Method of continuously processing and packing elongated articles such as coherent pairs of chopsticks and an apparatus for carrying out the method
A method and an apparatus for continuously processing and packing elongated articles such as coherent pairs of chopsticks include continuously advancing the articles in the longitudinal direction in a track and centrally aligning the same during the conti...
06/20/1989
4834156Tree stem feeding device for timber harvesters
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 from each other, such...
05/30/1989
4807677Device for machining plate-shaped workpieces, as well as battens or timber strips
A device for machining plate-like workpieces comprises first and second parallel conveyor units each including upper and lower chain belts arranged with a clearance therebetween and driven in opposite directions. The lower chain belts have opposite ends e...
02/28/1989
4774987Apparatus for feeding roundwood into a rotating barking drum
An apparatus for feeding roundwood into a rotating debarking drum through the inlet end of the barking drum utilizing a conveyor. The prior method presents the drawback that it is not possible, with a single feed device, to feed into the barking drum roun...
10/04/1988
4766939Assembly for limbing tree stems
An assembly for limbing tree stems comprises two limbing tools (53, 53') movable towards and away from each other, and two feeding units (1, 1') which are also movable towards and away from each other and arranged for longitudinal feeding of individual st...
08/30/1988
4742854Feeding device for effecting a longitudinally directed relative movement between a stem and the device proper
A feeding device for effecting a longitudinally directed relative movement between a stem and the device proper comprises at least one feeding unit in the form of an endless band or band-like element which is drivable by means of at least one rotatable wh...
05/10/1988
4709609Saw machine
A sawing machine having rollers which laterally guide a log and feed it upon a transporting chain between and under rollers to sawblades of the saw machine, such as circular saws or a band saw. Above the log there in a staying chain which stays the log by...
12/01/1987
4450882Automatic shaper
A highly productive completely automatic tracing shaper machine tool performs sequential operations without manual attention permitting a single operator to simultaneously run several machines without being exposed to the shaper heads of the machine. The ...
05/29/1984
4346745Wafer slicing apparatus
A rotatable carrier has a plurality of cutter knives protruding from a work face thereof. A feed passage is positioned to direct longitudinal sides of wood pieces against the carrier face to enable the knives to slice wafers from the pieces during rotatio...
08/31/1982
4185672Integrated tree processing mill
A process and apparatus are described wherein an integrated saw mill includes conveyor means for feeding debarked logs, classifying the logs and storing them according to size, advancing a particular log, scanning and analyzing the log and determining its...
01/29/1980
4100950End dogging feeding device
A device for continuously feeding logs into a machine center to cut or chip pieces from the sides thereof is disclosed. The device includes opposed upper and lower tracks mounting upper and lower endless drive chains. Each drive chain mounts a plurality o...
07/18/1978
4093007Method for root end cutting of lumber and a device for performing said method
A root end cutting device for automatically aligning and cutting off the root ends of pieces of lumber. A conveying means transversely conveys the lumber through the device. Each piece of lumber is marked with a photosensitive transverse mark to indicate ...
06/06/1978
4024948Conveyor track apparatus for logs
A simple and efficient conveyor track apparatus for conveying logs using endless conveyor comprising a belt or chain and having stations for rolling off or displacing the logs laterally of the direction the conveyor is moving; the logs being displaced by ...
05/24/1977
4020883Feed works for rotary ring log barkers
Chain type log transports are located at the infeed and outfeed sides, respectively, of a rotary barking ring and are constructed to be positioned as close as possible to the barking ring to transport logs of minimum length through the barking ring. The t...
05/03/1977
4018394Shredding machine for fibrous materials
The invention relates to a shredding machine, more particularly for shredding fibrous, lignin-containing or analogous materials. It comprises an endless belt carrying grinding tools such as gouges and forming an upper lap onto which the material to be def...
04/19/1977
4009632Sawmill log-handling system
Logs are advanced through a saw while they are engaged between driven pusher dogs and retarded hold-back dogs. The pusher dogs are mounted on a lower endless roller chain below the logs, and the hold-back dogs are on an upper endless roller chain above th...
03/01/1977
3972358Apparatus for delimbing trees
Apparatus for delimbing felled trees including an elongate support along which a tree may be carried longitudinally through the apparatus. The support is foldable for shortening for transport. Powered driving means are operable to draw a tree through the ...
08/03/1976
 
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