GB578825A - Improvements in or relating to portable chain saws - Google Patents

Improvements in or relating to portable chain saws

Info

Publication number
GB578825A
GB578825A GB1426744A GB1426744A GB578825A GB 578825 A GB578825 A GB 578825A GB 1426744 A GB1426744 A GB 1426744A GB 1426744 A GB1426744 A GB 1426744A GB 578825 A GB578825 A GB 578825A
Authority
GB
United Kingdom
Prior art keywords
blade
block
engaging
holds
adjustment
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
GB1426744A
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.)
T H & J Daniels Ltd
Original Assignee
T H & J Daniels 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 T H & J Daniels Ltd filed Critical T H & J Daniels Ltd
Priority to GB1426744A priority Critical patent/GB578825A/en
Publication of GB578825A publication Critical patent/GB578825A/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
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/14—Arrangements for stretching the chain saw

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)

Abstract

578,825. Sawing - machines. ARMSTRONG, J. W. C., PALFI, J., and DANIELS, Ltd., T..H. & J. July 26, 1944, No. 14267. [Class 145 (ii)] The tension of a chain saw 1, Figs. 1 and 3, is adjusted by moving the blade 3 which supports the saw relatively to a fixed part of the machine by a rotatable eccentric arranged between that part and the blade. The blade 3, which may be of the construction described in Specification 578,826, is secured between the usual buffer plates 5, 6 by four bolts 11 having fixed thereto or integral therewith rectangular blocks 12 engaging slots 13 in the blade to guide the latter during its adjustment. This adjustment is effected by turning a cylindrical block 14, mounted in the buffer 6 and having an eccentric pin 24 engaging a vertical slot 25 in the blade 3. The block 14 has a reduced part 17 flattened to receive a spanner and carrying a screw 21 which, by engaging a locking bar 19 extending through a slot 18 in the part 17, holds the block 14 in its adjusted position. A serrated washer 23 engaging serrations on the block 14, holds the block against accidental turning. Specifications 568,988 and 578,824 also are referred to.
GB1426744A 1944-07-26 1944-07-26 Improvements in or relating to portable chain saws Expired GB578825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1426744A GB578825A (en) 1944-07-26 1944-07-26 Improvements in or relating to portable chain saws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1426744A GB578825A (en) 1944-07-26 1944-07-26 Improvements in or relating to portable chain saws

Publications (1)

Publication Number Publication Date
GB578825A true GB578825A (en) 1946-07-12

Family

ID=10038064

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1426744A Expired GB578825A (en) 1944-07-26 1944-07-26 Improvements in or relating to portable chain saws

Country Status (1)

Country Link
GB (1) GB578825A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1113173B (en) * 1956-07-24 1961-08-24 Andreas Stihl Guide rail for rock work with motor chain saws
WO2001049465A1 (en) * 1999-12-29 2001-07-12 Robert Bosch Gmbh Chain saw and chain tensing device therefor
CN105082262A (en) * 2015-09-01 2015-11-25 嘉兴善拓机械有限公司 Chain saw sleeve fixing structure
EP4180194A1 (en) * 2021-11-10 2023-05-17 Techtronic Cordless GP Chainsaw and method of tensioning a guide bar of a chain saw

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1113173B (en) * 1956-07-24 1961-08-24 Andreas Stihl Guide rail for rock work with motor chain saws
WO2001049465A1 (en) * 1999-12-29 2001-07-12 Robert Bosch Gmbh Chain saw and chain tensing device therefor
US6782627B2 (en) 1999-12-29 2004-08-31 Robert Bosch Gmbh Chain saw
CN105082262A (en) * 2015-09-01 2015-11-25 嘉兴善拓机械有限公司 Chain saw sleeve fixing structure
EP4180194A1 (en) * 2021-11-10 2023-05-17 Techtronic Cordless GP Chainsaw and method of tensioning a guide bar of a chain saw
US11673287B2 (en) 2021-11-10 2023-06-13 Techtronic Cordless Gp Systems and methods of chainsaw tensioning
US12042950B2 (en) 2021-11-10 2024-07-23 Techtronic Cordless Gp Systems and methods of chainsaw tensioning

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