CA2305850A1 - Method and apparatus for bucksawing logs - Google Patents

Method and apparatus for bucksawing logs Download PDF

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Publication number
CA2305850A1
CA2305850A1 CA002305850A CA2305850A CA2305850A1 CA 2305850 A1 CA2305850 A1 CA 2305850A1 CA 002305850 A CA002305850 A CA 002305850A CA 2305850 A CA2305850 A CA 2305850A CA 2305850 A1 CA2305850 A1 CA 2305850A1
Authority
CA
Canada
Prior art keywords
log
bucksawing
advancing
conveyor
logs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002305850A
Other languages
French (fr)
Other versions
CA2305850C (en
Inventor
Robert James Murray
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority claimed from CA 2131056 external-priority patent/CA2131056C/en
Publication of CA2305850A1 publication Critical patent/CA2305850A1/en
Application granted granted Critical
Publication of CA2305850C publication Critical patent/CA2305850C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B27B1/002—Methods for subdividing trunks or logs essentially involving sawing by cross-cutting
    • 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
    • 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
    • B27B31/00—Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines
    • B27B31/003—Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines with rollers
    • 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
    • B27B31/00—Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines
    • B27B31/006—Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines with chains or belts

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Attitude Control For Articles On Conveyors (AREA)

Abstract

Previous methods of bucksawing logs slow the through-put of a sawmill in that the conveyor line is stopped while a given log is bucksawed to length. The present invention provides a method for bucksawing a log which improves the throughput speed, comprising the steps of a) advancing the log endwise along an infeed conveyor; b) raising the log above the level of said infeed conveyor while advancing the log; c) measuring the advance of the log while raised; d) stopping the log at the desired length; e) sawing the log to produce a forward log segment; and f) lowering the forward log segment onto an outfeed conveyor while advancing the remaining log segments. An apparatus for carrying out the method is also disclosed.
CA002305850A 1994-08-29 1994-08-29 Method and apparatus for bucksawing logs Expired - Fee Related CA2305850C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2131056 CA2131056C (en) 1994-08-29 1994-08-29 Method and apparatus for bucksawing logs

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA 2131056 Division CA2131056C (en) 1994-08-29 1994-08-29 Method and apparatus for bucksawing logs

Publications (2)

Publication Number Publication Date
CA2305850A1 true CA2305850A1 (en) 1996-01-08
CA2305850C CA2305850C (en) 2004-08-24

Family

ID=4154252

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002305850A Expired - Fee Related CA2305850C (en) 1994-08-29 1994-08-29 Method and apparatus for bucksawing logs

Country Status (1)

Country Link
CA (1) CA2305850C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002045925A1 (en) * 2000-12-07 2002-06-13 Tähkä Oy Apparatus and method for handling logs
EP0960705A3 (en) * 1998-05-29 2004-10-06 Hans Schmidler Trimming machine with workpiece positioning device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0960705A3 (en) * 1998-05-29 2004-10-06 Hans Schmidler Trimming machine with workpiece positioning device
WO2002045925A1 (en) * 2000-12-07 2002-06-13 Tähkä Oy Apparatus and method for handling logs

Also Published As

Publication number Publication date
CA2305850C (en) 2004-08-24

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed