GB594228A - Improvements in or relating to hack-saws - Google Patents

Improvements in or relating to hack-saws

Info

Publication number
GB594228A
GB594228A GB2082043A GB2082043A GB594228A GB 594228 A GB594228 A GB 594228A GB 2082043 A GB2082043 A GB 2082043A GB 2082043 A GB2082043 A GB 2082043A GB 594228 A GB594228 A GB 594228A
Authority
GB
United Kingdom
Prior art keywords
worm
frame member
adjustable
teeth
members
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
GB2082043A
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
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB594228A publication Critical patent/GB594228A/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
    • B23D51/125—Blade tensioning means

Landscapes

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

Abstract

594,228. Hand-saws. YOUNG, S. G. Dec. 13, 1943, No. 20820. [Class 61 (ii)] A hack-saw of the type formed of two frame members adjustable relatively to each other is provided with a locking means comprising rack teeth on one of the members engaged, directly or indirectly, by a worm rotatably mounted on the other member. As shown, one end of the adjustable frame member 1 is received in a channel or guideway 5 in the fixed frame member. The latter has a hand grip 7 formed integrally with an arm 6 in which is mounted a conical worm 10 controlled by a finger-piece 13. The worm engages teeth 9 on the adjustable member and may have an interrupted thread to allow of more rapid adjustment. Means 3 with projections 4 for holding a saw blade are provided on both members. In a modification, the worm is cylindrical and engages a toothed wheel or quadrant which is interposed between the worm and the teeth on the adjustable frame member. The wheel is freely rotatable on a spindle mounted in the fixed frame member. The worm may be provided on the adjustable frame member in which case the teeth are formed in the fixed frame member.
GB2082043A 1943-12-13 Improvements in or relating to hack-saws Expired GB594228A (en)

Publications (1)

Publication Number Publication Date
GB594228A true GB594228A (en) 1947-11-06

Family

ID=1735729

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2082043A Expired GB594228A (en) 1943-12-13 Improvements in or relating to hack-saws

Country Status (1)

Country Link
GB (1) GB594228A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612196A (en) * 1948-03-04 1952-09-30 Harvey H Bouschor Hack saw
GB2434120A (en) * 2006-01-11 2007-07-18 Laurie Rowe Hacksaw frame with blade tensioning means

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612196A (en) * 1948-03-04 1952-09-30 Harvey H Bouschor Hack saw
GB2434120A (en) * 2006-01-11 2007-07-18 Laurie Rowe Hacksaw frame with blade tensioning means
GB2434120B (en) * 2006-01-11 2011-03-09 Laurie Rowe Hacksaw Frame

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