Patents
Patents for B27B 1 - Methods for subdividing trunks or logs essentially involving sawing (883)
10/1993
10/05/1993US5251141 Apparatus for dividing workpieces especially of wood
10/05/1993US5249491 Sawmill method and apparatus with movable scanning means
09/1993
09/30/1993DE4209407A1 Lengthwise sawing of timber - involves blade movement dependent upon timber advance, and blade is adjusted for each cut, resulting in parallel cuts
09/28/1993CA1322513C2 Winged cutting knife for producing wood chips or flakes
09/15/1993EP0559675A1 A means for sawing elongate units from a tree-trunk.
09/14/1993US5243888 Pivoting carriage and saw
09/08/1993EP0559577A1 Device for machining for woodworking machines and apparatus including such a device
08/1993
08/18/1993EP0555599A1 Process for manufacturing wooden tiles
08/03/1993CA1320896C Method and apparatus for sawing round wood trunks
07/1993
07/20/1993US5228490 Process and apparatus for producing squares from tree boles or the like
06/1993
06/24/1993DE4240636A1 Finger=jointing appts. for boards fed in succession - has feeder stations stopped by counters of switch operations in accordance with measured length of feed
06/02/1993EP0425490B1 Sawing machine
05/1993
05/25/1993CA1318223C Sawing machine
05/06/1993DE4136117A1 Machine for making fibre-parallel scantling - has control for width-conicity adjustment dependent upon distance/time ratio of timber feed
04/1993
04/29/1993WO1993008002A1 Apparatus and procedure for cutting square timber
04/29/1993WO1993008000A1 Method for reducing a log
04/29/1993DE4135247A1 Structural timbers cut from the tree trunk - constitute two diagonally opposite quartering glued together with compensating bevelled surfaces
04/13/1993US5201351 Edger for a conventional sawmill
04/13/1993US5201258 Automated cutting station for wood blanks
03/1993
03/18/1993WO1993004827A1 A method of notching and joining radial segments of timber
03/18/1993WO1993004826A1 Backsawn timber production from radially sawn wedges
01/1993
01/26/1993US5181445 Optimizing cutoff saw
12/1992
12/23/1992WO1992022402A1 Improvements in the breakdown of logs
12/23/1992CA2111686A1 Improvements in the breakdown of logs
12/16/1992EP0518246A2 Method for production of wooden hollow beams and forms of this beam obtained by this method
11/1992
11/19/1992EP0514315A1 Method and apparatus for planing and longitudinal sawing of lamellae, in particular for laminated wood
11/17/1992US5163255 Construction shims
11/15/1992CA2068564A1 Process and apparatus for producing squares from tree boles or the like
10/1992
10/29/1992WO1992018301A1 A method and arrangement for mutually separating boards cut simultaneously in a sawing machine
10/29/1992WO1992018300A1 Method and plant for processing logs
10/27/1992CA1309372C System for orienting logs for lumber processing
10/15/1992DE4112008A1 Rectangular core machining from material having irregular edges - involves derivation of coordinates of useful surface by simple subtraction of opposite corrected functional measurement data
10/01/1992WO1992016339A1 Process for sawing logs
09/1992
09/22/1992US5148847 Method and apparatus for around the curve sawing
09/01/1992US5143127 Sawing machine
09/01/1992US5142955 Lumber cutter for removing end defects and sawing to desired lengths
08/1992
08/26/1992EP0500181A2 Automated cutting station for wood blanks
08/04/1992US5135597 Process for remanufacturing wood boards
07/1992
07/30/1992DE4101886A1 Timber offcut processing involving computer-controlled quality sorting - evaluating each piece for cutting to optimum length by orthogonal guillotine saws according to recycling requirements
07/23/1992WO1992012007A1 A process for re-manufacturing wood boards and the product produced thereby
05/1992
05/19/1992CA1301371C Log scanner
05/12/1992US5111862 Method for flattening logs
05/09/1992WO1992008587A1 A means for sawing elongate units from a tree-trunk
05/09/1992CA2095846A1 Means for sawing elongate units from a tree-trunk
05/05/1992US5109899 Cant-making apparatus and process
05/05/1992CA1299980C Log processing systems
04/1992
04/22/1992EP0481164A1 Apparatus for cutting circular wood into lengths
03/1992
03/05/1992WO1992003266A1 Method and plant for positioning logs in connection with the shaping of cants
03/05/1992DE4027274A1 Measuring width of planks that can be cut from tree trunk - moving distance measurers along line of cut on opposite sides of trunk at set spraying to supply valves continuously to computer
02/1992
02/18/1992US5088363 Method and apparatus for an automatic sawmill
01/1992
01/14/1992CA1294192C Apparatus and method for processing lumber
12/1991
12/10/1991US5070989 Log sweep positioner
11/1991
11/28/1991DE4016628A1 Producing lumber prodn. in chipping heads rig - by appropriate coupling of chippers with longitudinal transport device
10/1991
10/22/1991US5058638 Apparatus for cross-cutting treetrunks, comprising a device for measuring lengths
10/09/1991EP0451005A2 Manufacturing process for carrier modules used to build constructions
08/1991
08/27/1991US5042341 Marking station for timber
08/07/1991EP0440151A2 Method for flattening tree trunks
07/1991
07/23/1991US5034259 Substrate and plurality subboards which are edge bonded and glued
06/1991
06/25/1991CA1285291C Process and an apparatus to feed tree trunks to a processing machine
06/11/1991US5023805 Log scanner
05/1991
05/14/1991WO1991007260A1 Apparatus for guiding a piece of timber to a machine tool
05/08/1991EP0425490A1 Sawing machine.
04/1991
04/18/1991WO1991005245A1 Tomographic radiological method for detection of defects and knots in wood
03/1991
03/19/1991CA1281528C Waferboard lumber
02/1991
02/28/1991DE3928322A1 Square-section wooden beam - is produced from round tree trunk by cutting trunk longitudinally into four pieces
01/1991
01/31/1991DE4023395A1 Hollow granite box beam and method of forming - beam comprising of two elongated component blocks of granite each containing at least one flat surface having identical dimensions
01/29/1991CA1279558C Fixed curve linebar
01/02/1991EP0406219A1 Device for cutting pieces, especially wood pieces
12/1990
12/18/1990US4977805 Edging apparatus
12/11/1990CA1277574C Method for the chipping dissection of tree logs into all-round machined lumber products
11/1990
11/14/1990EP0107690B1 Method and device for transforming billets into construction wood
11/08/1990DE3914449A1 Mfr. of wooden articles - has surface working tools, carving round wood into intermediate product
09/1990
09/18/1990CA1274153A1 Process and device for the squaring of tree trunks
08/1990
08/14/1990US4947909 Process and apparatus for optimizing volume of boards cut from a log
08/07/1990US4945797 Automated multiple rip saw feeding apparatus
08/07/1990CA1272429A1 Variable curve linebar with skewable saws
08/07/1990CA1272428A1 Variable curve linebar
07/1990
07/10/1990US4941100 Automatic edger saw
06/1990
06/19/1990US4934229 Marking station for timber
05/1990
05/23/1990CN1008076B Waferboard lumber
05/22/1990US4926917 Feed speed and guide arm control for sawing logs
05/10/1990DE3839997C1 Panel-sizing saw
05/08/1990US4922976 Apparatus for removing branches from and for crosscutting treetrunks
05/01/1990US4920723 Hollow granite box beam and method of forming
04/1990
04/10/1990CA1267592A1 Apparatus for the production of beams having the shape of a prism or of a truncated pyramid
03/1990
03/20/1990US4909294 Process of making construction shims
01/1990
01/23/1990US4895197 Method and apparatus for sawing logs
12/1989
12/28/1989DE3820148A1 Cross-cut saw
12/20/1989CN1038048A 用于装配角联动装置零件的设备 Equipment used to hold parts of the linkage supporting role
12/12/1989US4887219 Board cut-off saw assembly
11/1989
11/21/1989US4881584 Infeed conveyor for saw
11/16/1989WO1989010824A1 Sawing machine
11/07/1989US4879752 Lumber optimizer
11/07/1989US4879659 Log processing systems
09/1989
09/27/1989EP0334834A2 Method for radially cutting round wood
08/1989
08/09/1989EP0327139A2 Device for producing prismatic or truncated pyramidal beams
08/02/1989EP0326284A2 Apparatus and method of processing lumber
07/1989
07/18/1989US4848427 Method and apparatus for chipping and disecting of tree logs on all sides
07/12/1989EP0242352B1 Device for shaving the sides of tree trunks
07/11/1989US4846237 Method and apparatus for sawing round wood trunks
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