US3459246A - Method and plant for treating lumber - Google Patents

Method and plant for treating lumber Download PDF

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Publication number
US3459246A
US3459246A US581514A US3459246DA US3459246A US 3459246 A US3459246 A US 3459246A US 581514 A US581514 A US 581514A US 3459246D A US3459246D A US 3459246DA US 3459246 A US3459246 A US 3459246A
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United States
Prior art keywords
sawing
wooden
quality
plant
saw
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Expired - Lifetime
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US581514A
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English (en)
Inventor
Par Axel Rune Ottosson
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KAHRS MASKINER AB
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KAHRS MASKINER AB
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B23Q35/12—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means
    • B23Q35/121—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means using mechanical sensing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/001—Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/008—Accessories specially designed for sawing machines or sawing devices comprising computers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B1/00—Methods for subdividing trunks or logs essentially involving sawing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/707—By endless band or chain knife
    • Y10T83/7076—With programming means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/707—By endless band or chain knife
    • Y10T83/7158—Including plural cutting zones
    • Y10T83/7189—Comprising plural bands

Definitions

  • the prevailing method for sawing timber has been, and still is, the gang saw.
  • the saw blades are set up to give a miximum yield from a certain diameter, the logs being sorted and those having a diameter corresponding to the setting of the saw-blades being passed inline through the apparatus, it being necessary to reset the saw blade for logs of a different diameter, and pass available logs of this diameter through the apparatus. It is also conceivable that the logs are sorted with respect to quality,
  • logs are received of a certain class or quality and certain diameters sawn just as the quality justifies.
  • the method according to the present invention is mainly characterized in that each wooden object is passed to examining means for determining the quality and/ or dimensions of the wood, after which the wooden object, without being sorted, is passed to a sawing plant provided with a number of adjustable sawing members, the sawing members being adjusted in accordance with control impulses eminating from a data machine which obtains information signals from the examining means and is so programmed that the desired yield is obtained for each wooden object, depending on its quality and/ or size conditions.
  • the invention is also characterized by a plant for carrying out the aforementioned method, said plant comprisng a conveyor belt which leads each wooden object past one or more examining means for determining quality and/or size, after which each of said objects is arranged to be gripped at the ends surfaces and, so secured, moved against band saw-blades arranged in pairs, said blades in each pair being adapted displaceably towards and away from each other, in answer to signals obtained from a preprogrammed data machine adapted to be supplied with information signals from the said examining means.
  • Information concerning the quality of the log is passed to the memory in a computer, which will be more fully described below.
  • the log is then displaced laterally onto a conveyor 8 and passed to an arrangement which rotates the log 1 and which comprises a plurality of toothed wheels 9. Inspection of the logs with respect to quality can also be carried out visually at this position, whereby press button signals can be sent to the computer described below.
  • the gripping member 10 When the wooden object has been turned to a position favourable for sawing, it is gripped by the gripping member 10 at each end, said gripping member suitable being arranged on some form of traverse means.
  • the gripping members are arranged in line with each other and have a width which is less than the distance between the innermost saw cut of the subsequently following saws.
  • the wooden object is passed by the gripping member 10 through an arrangement 11 which, by means of photocells, determines the smallest diameter of said object.
  • Information from the last mentioned arrangement and form the device 7 which determines the quality of the object is passed to a data machine 12 adapted to emit operating signals to operating units 13, 14 and 15 in the sawing plant.
  • a data machine 12 adapted to emit operating signals to operating units 13, 14 and 15 in the sawing plant.
  • the band saw unit 16 is arranged to be controlled by operating unit 13 with respect to the position of the saw cuts, i.e. the mutual positions of the band saw-blades relative to the wooden object.
  • a roughly trimmed material is arranged to follow a conveyer belt 17 for further sawing in a band saw machine 18 and is further worked in an edging device 19.
  • the wooden object 1 passed by the gripping members 10 through the first sawing unit 16 now has the form of a block 20 which is deposited on a roller belt 21 and fed into a second array of band saws 22 adapted to be operated by the computer via the operating member 14, with respect to the adjustments of the saw-blades relative to the band 20.
  • the waned or unfinished material also at this position, is conveyed to the conveyer path 17 to be further worked in the edging apparatus 18 and 19.
  • the remaining portion of the block 20 is fed to an additional band saw unit 23 to be finally sawn up into planks, after which it is moved laterally over to a sorting conveyor 24 past the feed arrangement 25 and the sorting directing plant 26 to a sorting tray 27.
  • the planks are fed from the sorting tray, via a conveyor belt 28, to another conveyor belt 29 where they are moved laterally to a stacking position 30.
  • the described arrangement enables wooden objects to be sawn up without being pre-sorted in any way and, thereby, obtain the maximum yield of the wood.
  • the computer has obtained such information concerning the relevant wooden object that, owing to a pre-determined programming, it can immediately control the various sawing units, via operating units 13, 14 and 15 so that desired cuts are made along the relevent wooden objects.
  • Programming shall be such that consideration is paid to certain definite types of wood, to which the incoming wooden objects can be referred.
  • Each band saw machine is thus adapted so that it can be adjusted in accordance with signals given by the computer.
  • the present invention thus eliminates such work as manual inspection of the Wooden objects, pre-sorting, which results in large storage sites, and from a manual handling respect a difficult adjustment procedure for all the saw arrangements included in the plant.
  • a plurality of different types of saws can be used and the invention is not restricted to the use of band saws, but, for instance, circular saws can also be used.
  • the invention restricted to the use of arrangements shown here for determining the diameter and the bowl end or top end of the logs, but that other arrangements suitable for this purpose can also be used.
  • a process for sawing an object comprising: radioscopically detecting the quality of said object; photoelectrically detecting the smallest dimension of said object, feeding the quality and dimensional information to a computer; computing the proper positions of a first adjustable band saw in accordance with said quality and dimension information; adjusting said first saw in accordance with signals from said computer; sawing the object with said first band saw; whereby said object is sawed to get the maximum yield of useable lumber consistent with the quality and dimensions of the initial wood object.
  • a process as in claim 1 further comprising before said quality detecting step the steps of detecting any stones and metal embedded along the outer surface of said object and rejecting objects with stones and metal embedded therein.
  • a process as in claim 1 further comprising again 5 sawing the object with a second adjustable band saw in accordance with signals from said computer.
  • a process as in claim 1 further comprising selectively rotating said object before said step of photoelectrically detecting the smallest diameter of the object; whereby the object will be in a position favorable for said sawing.
  • a process as in claim 1 wherein said object is a wooden log further comprising:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sorting Of Articles (AREA)
  • Sawing (AREA)
US581514A 1965-09-24 1966-09-23 Method and plant for treating lumber Expired - Lifetime US3459246A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1241065 1965-09-24

Publications (1)

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US3459246A true US3459246A (en) 1969-08-05

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US581514A Expired - Lifetime US3459246A (en) 1965-09-24 1966-09-23 Method and plant for treating lumber

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US (1) US3459246A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE687283A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1503964B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1509959A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1086450A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519045A (en) * 1967-05-02 1970-07-07 Weyerhaeuser Co Method for aligning and transferring logs
US3554249A (en) * 1967-04-19 1971-01-12 Essem Metotest Ab Method for grading and classifying debranched tree-trunks and similar roundwood according to the usefulness of the wood contained therein, and an apparatus for putting the method into effect
US3736968A (en) * 1970-11-25 1973-06-05 Sun Studs Method and apparatus for processing logs
US3806253A (en) * 1972-12-13 1974-04-23 Weyerhaeuser Co Sweep measuring scheme
US3811487A (en) * 1971-10-19 1974-05-21 L Warren Automatic sawmill
US3875841A (en) * 1973-09-26 1975-04-08 Nova Lumber Co Ltd Sawmill apparatus
US3941019A (en) * 1973-05-09 1976-03-02 Oliver Machinery Company Method and apparatus for cutting lumber and the like
US3960041A (en) * 1971-10-19 1976-06-01 Warren Lyle D Automatic sawmill
US3970128A (en) * 1974-04-22 1976-07-20 Saab-Scania Aktiebolag Orientation of cant for translatory feed through edging cutters
US4074601A (en) * 1974-01-21 1978-02-21 Warren Lyle D Automatic sawmill
US4148344A (en) * 1975-10-20 1979-04-10 The Pack River Company Portable sawmill
US4185672A (en) * 1974-02-06 1980-01-29 Reed Ltd. Integrated tree processing mill
US4197888A (en) * 1978-02-21 1980-04-15 The Coe Manufacturing Company Log centering apparatus and method using transmitted light and reference edge log scanner
US4204798A (en) * 1971-10-19 1980-05-27 Brewster Robert W Automatic sawmill
US4269245A (en) * 1978-02-17 1981-05-26 Kockums Industri Aktiebolag Infeed mechanism
US4324277A (en) * 1979-05-21 1982-04-13 Otto Kreibaum Method for processing round lumber into cut lumber
US4330019A (en) * 1982-03-11 1982-05-18 King, Murphy & Associates, Ltd. Method and apparatus for sawing logs into lengths
US4392204A (en) * 1980-12-01 1983-07-05 Prim David F Lumber marking system
US4405090A (en) * 1980-10-06 1983-09-20 Dale Wakeem Method and apparatus for reducing tires
US4419914A (en) * 1978-11-28 1983-12-13 Evans Tony L Cant production
US4424616A (en) 1980-08-20 1984-01-10 Nippon Kokan Kabushiki Kaisha Conditioning line for steel pipes
US4468993A (en) * 1982-06-11 1984-09-04 International Paper Company Small log bucking system
US4691751A (en) * 1984-12-21 1987-09-08 Aihiko Ky Method for sawing a tree trunk and for treating a uniformly thick slice of wood sawed off the trunk
US4926917A (en) * 1989-07-10 1990-05-22 Eberhard Kirbach Feed speed and guide arm control for sawing logs
US4947909A (en) * 1989-02-14 1990-08-14 Cae Machinery Ltd. Process and apparatus for optimizing volume of boards cut from a log
US5088363A (en) * 1987-08-21 1992-02-18 Aaron U. Jones Method and apparatus for an automatic sawmill
US5444635A (en) * 1993-09-08 1995-08-22 Alpine Engineered Products, Inc. Optimizing technique for sawing lumber
US6244144B1 (en) 1998-05-28 2001-06-12 Douglas William Goldie Horizontal band saw device having multiple lanes of travel and associated method
US20030019545A1 (en) * 2001-07-24 2003-01-30 Woodford James D. Optimized board edger and method of operation thereof
US20030029518A1 (en) * 2000-11-15 2003-02-13 Donald Starr Method and apparatus for singulating, debarking, scanning and automatically sawing and sorting logs into lengths
US6817393B2 (en) 2001-07-17 2004-11-16 Gerald M. Quenneville End-dogging head saw and method
US20060000326A1 (en) * 2004-05-26 2006-01-05 Dick Spencer B Material handling systems
US20060004478A1 (en) * 2004-05-26 2006-01-05 Dick Spencer B Material handling systems
US7171738B2 (en) 2003-10-09 2007-02-06 Precision Automation, Inc. Systems for processing workpieces
US20070028730A1 (en) * 2003-08-20 2007-02-08 Sawyer Philip P Apparatus and methods for double ended processing
US20070240547A1 (en) * 2004-10-12 2007-10-18 Dick Spencer B Multi-step systems for processing workpieces
US20070246125A1 (en) * 2006-04-20 2007-10-25 Philip Latos Method for optimizing lumber
US20080009961A1 (en) * 2006-02-24 2008-01-10 Dick Spencer B Gauge system
US7792602B2 (en) 2006-08-22 2010-09-07 Precision Automation, Inc. Material processing system and a material processing method including a saw station and an interface with touch screen
CN102873719A (zh) * 2012-09-25 2013-01-16 湖南万森木业有限公司 原木加工成型锯木机
US8783140B2 (en) 2009-06-09 2014-07-22 Lean Tool Systems, Llc Gauge system for workpiece processing
US20170095942A1 (en) * 2008-04-30 2017-04-06 Xyleco, Inc. Cellulosic and lignocellulosic structural materials and methods and systems for manufacturing such materials
US9943975B2 (en) 2012-02-01 2018-04-17 Precision Automation, Inc. Saw system for miter joints
CN111452149A (zh) * 2020-04-22 2020-07-28 南兴装备股份有限公司 一种电脑裁板锯的控制系统及工作方法
US11597045B2 (en) 2019-08-12 2023-03-07 Precision Automation, Inc. Linear positioner
CN117921811A (zh) * 2024-03-01 2024-04-26 广东华顺鹏机械有限公司 一种木材加工生产线以及加工生产工艺

Families Citing this family (21)

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Publication number Priority date Publication date Assignee Title
SE413641B (sv) * 1975-02-19 1980-06-16 Skogsegarnas Vaenerind Forfaringssett och anordning for sagning av timmer
DE2542112C2 (de) * 1975-09-20 1983-11-03 Wurster u. Dietz GmbH u. Co Maschinenfabrik, 7400 Tübingen Verfahren und Vorrichtung zum Ablängen von Seitenware
JPS53114593A (en) * 1977-03-17 1978-10-06 Oki Mokuzai Kk Device for automatically sorting lumbers sawn by edger
DE2750995C2 (de) * 1977-11-15 1981-10-01 Otto Ing.(Grad.) 3216 Salzhemmendorf Kreibaum Verfahren zum Gewinnen von Schnittholz aus Rundhölzern
DE2812518C2 (de) * 1978-03-22 1982-11-25 Christian 7804 Glottertal Beha Vorrichtung zum Vorkappen der Seitenware für eine Vollgatteranlage
IT1118219B (it) * 1978-05-05 1986-02-24 Celaschi Cost Mecc Cmc Apparecchiatura per la fresatura di profili in pannelli di legno o materiale simile
DE2842934C2 (de) * 1978-10-02 1982-08-26 Aktiebolaget Hammars Mekaniska Verkstad, 87052 Nyland Vorrichtung zum Überwachen des Vermessungsergebnisses und des Markierungsergebnisses von Stämmen vor deren Ablängung
DE2842933C2 (de) * 1978-10-02 1983-04-28 Aktiebolaget Hammars Mekaniska Verkstad, 87052 Nyland Vorrichtung zur Verarbeitung von Stämmen zu Sägeholz und Zellstoffholz
GB2068294B (en) * 1980-02-05 1984-02-15 Kockums Ind Ab Method for feeding pieces of timber into a timber processing machine and arrangement for carrying out the method
DE3216669A1 (de) * 1982-05-04 1983-11-10 Peter 2057 Reinbek Polaczek Verfahren zur verarbeitung von rundholz zu konstruktionsholz bzw. furnieren und vorrichtung zur durchfuehrung des verfahrens
DE3419212C1 (de) * 1984-05-23 1988-11-10 Jenkner, Erwin, 7261 Gechingen Verfahren zum Besaeumen und Aufteilen von Brettern mit Rohkanten,wie Waldkanten,und Einrichtung zur Durchfuehrung des Verfahrens
PH24300A (en) * 1985-11-07 1990-05-29 Angus Cameron Fisher Timber mill
DE3717124C1 (de) * 1987-05-21 1988-07-28 Horst Dipl-Ing Luening Verfahren zum Steuern ferneinstellbarer Saegen
BE1005061A3 (nl) * 1990-12-31 1993-04-06 Buck Marc De Werkwijze voor het fabriceren van planken, meer specifiek uit bomen van korte lengte en met kleine diameter.
DE4337682C1 (de) * 1993-11-04 1995-05-04 Dietz Hans Prof Dr Verfahren und Vorrichtung zum Zerlegen eines Baumstammes
DE19913566A1 (de) * 1999-03-25 2000-10-05 Edeltraud Schwaiger Vorrichtung zum Zerlegen von Baumstämmen in einem Schnitt mit mehreren nicht parallelen Schnittebenen, insbesondere in einem Quartierschnitt
AT513970B1 (de) * 2013-05-21 2014-09-15 Häupl Friedrich Ing Verfahren zum Bearbeiten eines Baumstammes
FR3036058A1 (fr) * 2015-05-11 2016-11-18 Michel Loyet Procede automatique de positionnement optimise d’une grume dans un poste de debitage
FR3036057A1 (fr) * 2015-05-11 2016-11-18 Michel Loyet Chariot mobile d’une installation de debitage pour un positionnement optimise de la grume
CN112896985A (zh) * 2021-01-13 2021-06-04 江西兴创木业有限责任公司 一种木材加工生产线的自动控制系统及其控制方法
CN116834116A (zh) * 2023-06-25 2023-10-03 广东华顺鹏机械有限公司 一种原木自动锯解生产线

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US3244204A (en) * 1964-05-08 1966-04-05 Weyerhaeuser Co Multiple saw electronic control apparatus
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US3244204A (en) * 1964-05-08 1966-04-05 Weyerhaeuser Co Multiple saw electronic control apparatus
US3259157A (en) * 1965-04-23 1966-07-05 Ernest E Runnion Production of dimensional lumber from small-diameter logs
US3381729A (en) * 1966-05-04 1968-05-07 Robert M. Dunn Board feet indicator and method

Cited By (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3554249A (en) * 1967-04-19 1971-01-12 Essem Metotest Ab Method for grading and classifying debranched tree-trunks and similar roundwood according to the usefulness of the wood contained therein, and an apparatus for putting the method into effect
US3519045A (en) * 1967-05-02 1970-07-07 Weyerhaeuser Co Method for aligning and transferring logs
US3736968A (en) * 1970-11-25 1973-06-05 Sun Studs Method and apparatus for processing logs
US3960041A (en) * 1971-10-19 1976-06-01 Warren Lyle D Automatic sawmill
US3811487A (en) * 1971-10-19 1974-05-21 L Warren Automatic sawmill
US4204798A (en) * 1971-10-19 1980-05-27 Brewster Robert W Automatic sawmill
US3806253A (en) * 1972-12-13 1974-04-23 Weyerhaeuser Co Sweep measuring scheme
US3941019A (en) * 1973-05-09 1976-03-02 Oliver Machinery Company Method and apparatus for cutting lumber and the like
US3875841A (en) * 1973-09-26 1975-04-08 Nova Lumber Co Ltd Sawmill apparatus
US4074601A (en) * 1974-01-21 1978-02-21 Warren Lyle D Automatic sawmill
US4185672A (en) * 1974-02-06 1980-01-29 Reed Ltd. Integrated tree processing mill
US3970128A (en) * 1974-04-22 1976-07-20 Saab-Scania Aktiebolag Orientation of cant for translatory feed through edging cutters
US4148344A (en) * 1975-10-20 1979-04-10 The Pack River Company Portable sawmill
US4269245A (en) * 1978-02-17 1981-05-26 Kockums Industri Aktiebolag Infeed mechanism
US4197888A (en) * 1978-02-21 1980-04-15 The Coe Manufacturing Company Log centering apparatus and method using transmitted light and reference edge log scanner
US4419914A (en) * 1978-11-28 1983-12-13 Evans Tony L Cant production
US4324277A (en) * 1979-05-21 1982-04-13 Otto Kreibaum Method for processing round lumber into cut lumber
US4424616A (en) 1980-08-20 1984-01-10 Nippon Kokan Kabushiki Kaisha Conditioning line for steel pipes
US4405090A (en) * 1980-10-06 1983-09-20 Dale Wakeem Method and apparatus for reducing tires
US4392204A (en) * 1980-12-01 1983-07-05 Prim David F Lumber marking system
US4330019A (en) * 1982-03-11 1982-05-18 King, Murphy & Associates, Ltd. Method and apparatus for sawing logs into lengths
US4468993A (en) * 1982-06-11 1984-09-04 International Paper Company Small log bucking system
US4691751A (en) * 1984-12-21 1987-09-08 Aihiko Ky Method for sawing a tree trunk and for treating a uniformly thick slice of wood sawed off the trunk
US5088363A (en) * 1987-08-21 1992-02-18 Aaron U. Jones Method and apparatus for an automatic sawmill
US4947909A (en) * 1989-02-14 1990-08-14 Cae Machinery Ltd. Process and apparatus for optimizing volume of boards cut from a log
US4926917A (en) * 1989-07-10 1990-05-22 Eberhard Kirbach Feed speed and guide arm control for sawing logs
US5444635A (en) * 1993-09-08 1995-08-22 Alpine Engineered Products, Inc. Optimizing technique for sawing lumber
US6244144B1 (en) 1998-05-28 2001-06-12 Douglas William Goldie Horizontal band saw device having multiple lanes of travel and associated method
US6971423B2 (en) * 2000-11-15 2005-12-06 Weyerhaeuser Company Method and apparatus for singulating, debarking, scanning and automatically sawing and sorting logs into lengths
US20030029518A1 (en) * 2000-11-15 2003-02-13 Donald Starr Method and apparatus for singulating, debarking, scanning and automatically sawing and sorting logs into lengths
US6817393B2 (en) 2001-07-17 2004-11-16 Gerald M. Quenneville End-dogging head saw and method
US20050109423A1 (en) * 2001-07-24 2005-05-26 Valley Machine Works Ltd. Optimized board edger and method of operation thereof
US20030019545A1 (en) * 2001-07-24 2003-01-30 Woodford James D. Optimized board edger and method of operation thereof
US7571751B2 (en) 2001-07-24 2009-08-11 U.S. Natural Resources, Inc. Optimized board edger and method of operation thereof
US7543615B2 (en) 2001-07-24 2009-06-09 U.S. Natural Resources, Inc. Optimized board edger and method of operation thereof
US6929043B2 (en) 2001-07-24 2005-08-16 Valley Machine Works Ltd. Optimized board edger and method of operation thereof
US20090100974A1 (en) * 2003-08-20 2009-04-23 Sawyer Philip P Method and apparatus for processing material
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BE687283A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1967-03-23
DE1503964A1 (de) 1969-08-14
DE1503964B2 (de) 1976-06-24
FR1509959A (fr) 1968-01-19

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