GB986651A - Improvements in or relating to woodworking machines - Google Patents

Improvements in or relating to woodworking machines

Info

Publication number
GB986651A
GB986651A GB4267662A GB4267662A GB986651A GB 986651 A GB986651 A GB 986651A GB 4267662 A GB4267662 A GB 4267662A GB 4267662 A GB4267662 A GB 4267662A GB 986651 A GB986651 A GB 986651A
Authority
GB
United Kingdom
Prior art keywords
workpiece
machine
rollers
feed rollers
feeler
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.)
Expired
Application number
GB4267662A
Inventor
Philip Henry Morris
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.)
WADKIN Ltd
Original Assignee
WADKIN Ltd
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 WADKIN Ltd filed Critical WADKIN Ltd
Priority to GB4267662A priority Critical patent/GB986651A/en
Publication of GB986651A publication Critical patent/GB986651A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C1/00—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
    • B27C1/12—Arrangements for feeding work
    • 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
    • B27B25/00—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees
    • B27B25/02—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees with feed and pressure rollers

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)

Abstract

986,651. Woodworking. WADKIN Ltd. March 12, 1964 [Dec. 12, 1962], No. 42676/62 Heading B5L. A woodworking machine such as a planing or moulding machine, comprises a pressure feed arrangement having a work-engaging feed roller 14 urged against a workpiece by a fluid pressure operated cylinder 19, the force of which is maintained approximately constant throughout its stroke by a pressure control device. As described, the machine has two feed rollers which are mounted on arms 15 movable about a common pivot 16, the arms having extensions 17 connected by links 18 to fluid pressure operated cylinders 19. The rollers are driven from a gear mounted coaxial with the pivot 16 and co-operate with freely-rotatable rollers 12 which extend through openings 13 in a table 11 of the machine. In an alternative embodiment, the feed rollers are mounted on arms mounted on separate pivots outwardly of the rollers, the cylinders being mounted on a casing 25. The pressure control device may comprise a blowoff valve in the circuit to the pressure side of the cylinders, the circuit also having a reversing valve. whereby the supply to the cylinders is reversed to raise the feed rollers. A verticallyadjustable bracket 29 is secured to the casing 25 at the infeed end of the machine and has a pivotally mounted feeler 34 which is moved in the event of an oversize workpiece being fed to the machine and operates a valve in the upper part 30 of the bracket to cause actuation of the reversing valve so that the feed rollers 14 are raised to render the machine inoperative. If a low workpiece is followed by a fairly high workpiece which, although it does not actuate the feeler 34, is not acceptable by the feed rollers 14 because of their low position, a second feeler device is operated, the device having an adjustable casing 41 supporting side pressure rollers 44 and a feeler arm 51 which normally bears against the side faces of the workpiece. When a fairly high workpiece following a low workpiece is held back by the feed rollers, the feeler arm detects the gap between the workpiece and rocks about a pivot 49 to move a lever arm 48 connected to a valve 45 which actuates the reversing valve to lift the feed rollers.
GB4267662A 1962-12-12 1962-12-12 Improvements in or relating to woodworking machines Expired GB986651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4267662A GB986651A (en) 1962-12-12 1962-12-12 Improvements in or relating to woodworking machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4267662A GB986651A (en) 1962-12-12 1962-12-12 Improvements in or relating to woodworking machines

Publications (1)

Publication Number Publication Date
GB986651A true GB986651A (en) 1965-03-17

Family

ID=10425485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4267662A Expired GB986651A (en) 1962-12-12 1962-12-12 Improvements in or relating to woodworking machines

Country Status (1)

Country Link
GB (1) GB986651A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135933A (en) * 1983-01-26 1984-09-12 Nat Res Dev Power workstock feed device
WO2008138291A1 (en) * 2007-05-14 2008-11-20 Raimann Holzoptimierung Gmbh & Co. Kg Upper pressure device for a sawing device and method for holding sawn material down
EP4056504A1 (en) * 2021-03-10 2022-09-14 IMA Schelling Deutschland GmbH Transport device for plate-shaped workpieces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135933A (en) * 1983-01-26 1984-09-12 Nat Res Dev Power workstock feed device
WO2008138291A1 (en) * 2007-05-14 2008-11-20 Raimann Holzoptimierung Gmbh & Co. Kg Upper pressure device for a sawing device and method for holding sawn material down
EP4056504A1 (en) * 2021-03-10 2022-09-14 IMA Schelling Deutschland GmbH Transport device for plate-shaped workpieces

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