GB807777A - Improvements in and relating to the control of sawmill equipment - Google Patents

Improvements in and relating to the control of sawmill equipment

Info

Publication number
GB807777A
GB807777A GB3339056A GB3339056A GB807777A GB 807777 A GB807777 A GB 807777A GB 3339056 A GB3339056 A GB 3339056A GB 3339056 A GB3339056 A GB 3339056A GB 807777 A GB807777 A GB 807777A
Authority
GB
United Kingdom
Prior art keywords
motor
stop
selsyn
planks
cut
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
GB3339056A
Inventor
Harold Fearnside Jefferson
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB3339056A priority Critical patent/GB807777A/en
Publication of GB807777A publication Critical patent/GB807777A/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
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B29/00—Gripping, clamping, or holding devices for the trunk or log in saw mills or sawing machines; Travelling trunk or log carriages
    • B27B29/08—Trunk or log carriages with gripping means designed to pass the saw blade(s), especially for band saws; Arrangement of gripping accessories thereon; Turning devices thereon
    • B27B29/10—Assemblies for laterally adjusting or controlling the clamping or turning devices with respect to the thickness of the board to be sawn

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Control Of Position Or Direction (AREA)
  • Mechanical Operated Clutches (AREA)
  • Automatic Disk Changers (AREA)

Abstract

807,777. Sawing. BRITISH THOMSONHOUSTON CO. Ltd. Oct. 4, 1957 [Nov. 1, 1956], No. 33390/56. Class 145. The transverse shift of the log carrier of a sawmill is controlled by a cam member 6 which can be coupled by means such as an electro-magnetic clutch 5a, 5b to the shaft 4 of the transverse shift motor and which carries adjustable cam pieces 15, 16 for operating sequentially switches 17, 18 to slow down and then stop the shift motor. When the motor stops, the clutch is de-energized and the cam member is returned by a spring 9 and wire 8 until a dog 10 engages a stop 11. For determining the thickness of planks to be cut, the position of the stop 11 can be varied by rotating its carrier disc 19 by a remote-controlled motor 12 or by selsyn means and its position can be indicated by a pointer 22 connected to the disc 19 by mechanical link or by selsyn means 20, 21. The starting of the shift motor can be accomplished manually from the remote control point or automatically as the log carrier arrives at the rear end of its longitudinal movement when it is desired to cut a number of planks of the same thickness.
GB3339056A 1956-11-01 1956-11-01 Improvements in and relating to the control of sawmill equipment Expired GB807777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3339056A GB807777A (en) 1956-11-01 1956-11-01 Improvements in and relating to the control of sawmill equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3339056A GB807777A (en) 1956-11-01 1956-11-01 Improvements in and relating to the control of sawmill equipment

Publications (1)

Publication Number Publication Date
GB807777A true GB807777A (en) 1959-01-21

Family

ID=10352313

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3339056A Expired GB807777A (en) 1956-11-01 1956-11-01 Improvements in and relating to the control of sawmill equipment

Country Status (1)

Country Link
GB (1) GB807777A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3066709A (en) * 1959-05-27 1962-12-04 Wisconsin Electrical Mfg Compa Position control for power driven mechanism
JPS5525909U (en) * 1978-08-05 1980-02-20

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3066709A (en) * 1959-05-27 1962-12-04 Wisconsin Electrical Mfg Compa Position control for power driven mechanism
JPS5525909U (en) * 1978-08-05 1980-02-20
JPS5756804Y2 (en) * 1978-08-05 1982-12-07

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