GB212365A - Improved locking device for metal frame saws - Google Patents

Improved locking device for metal frame saws

Info

Publication number
GB212365A
GB212365A GB222923A GB222923A GB212365A GB 212365 A GB212365 A GB 212365A GB 222923 A GB222923 A GB 222923A GB 222923 A GB222923 A GB 222923A GB 212365 A GB212365 A GB 212365A
Authority
GB
United Kingdom
Prior art keywords
frame
saw
lever
blade
locking device
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
GB222923A
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.)
SYDNEY MARCH CHALLIS
THOMAS WINNETT CHALLIS
Original Assignee
SYDNEY MARCH CHALLIS
THOMAS WINNETT CHALLIS
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 SYDNEY MARCH CHALLIS, THOMAS WINNETT CHALLIS filed Critical SYDNEY MARCH CHALLIS
Priority to GB222923A priority Critical patent/GB212365A/en
Publication of GB212365A publication Critical patent/GB212365A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/08—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools
    • B23D51/12—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools for use with tools, dealt with in this subclass, which are connected to a carrier at both ends, e.g. bows adjustable in length or height
    • B23D51/14—Attachment of the tool

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)

Abstract

212,365. Challis, T. W., and Challis, S. M. Jan. 24, 1923. Saws.-The blade 3 of a hacksaw, butcher's or similar saw is secured in the frame 1 by means of laterally projecting pins 4, 5 attached to it near its ends, one of which engages with slots 8 in the outer end of the frame 1 and the other of which engages with a recess 12 in a locking lever 9 pivoted to the inner end of the frame, so that when the lever is turned past the position in which the pivotal axis 10 of the lever and the axis of the pin 5 are in horizontal line, the saw is locked in the frame. Slats are provided in the frames 1 and lever 9 to receive the saw blade- The pin 4 may be separate from the blade 3 and threaded to screw into the frame 1 or so that a nut can be screwed on it to hold the front end of the saw in the frame.
GB222923A 1923-01-24 1923-01-24 Improved locking device for metal frame saws Expired GB212365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB222923A GB212365A (en) 1923-01-24 1923-01-24 Improved locking device for metal frame saws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB222923A GB212365A (en) 1923-01-24 1923-01-24 Improved locking device for metal frame saws

Publications (1)

Publication Number Publication Date
GB212365A true GB212365A (en) 1924-03-13

Family

ID=9735852

Family Applications (1)

Application Number Title Priority Date Filing Date
GB222923A Expired GB212365A (en) 1923-01-24 1923-01-24 Improved locking device for metal frame saws

Country Status (1)

Country Link
GB (1) GB212365A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095635A (en) * 1976-10-12 1978-06-20 The Stanley Works Coping saw with improved blade retention means
US4349059A (en) * 1980-05-27 1982-09-14 Plas Plugs Limited Blade holders
US5388334A (en) * 1994-01-25 1995-02-14 Halsey; Thomas J. Mechanized coping saw

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095635A (en) * 1976-10-12 1978-06-20 The Stanley Works Coping saw with improved blade retention means
US4349059A (en) * 1980-05-27 1982-09-14 Plas Plugs Limited Blade holders
US5388334A (en) * 1994-01-25 1995-02-14 Halsey; Thomas J. Mechanized coping saw

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