GB217731A - Fret saws - Google Patents

Fret saws

Info

Publication number
GB217731A
GB217731A GB1297123A GB1297123A GB217731A GB 217731 A GB217731 A GB 217731A GB 1297123 A GB1297123 A GB 1297123A GB 1297123 A GB1297123 A GB 1297123A GB 217731 A GB217731 A GB 217731A
Authority
GB
United Kingdom
Prior art keywords
links
pivot
arms
saws
fret
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
GB1297123A
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
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 Individual filed Critical Individual
Priority to GB1297123A priority Critical patent/GB217731A/en
Publication of GB217731A publication Critical patent/GB217731A/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
    • B23D49/00—Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
    • B23D49/007—Jig saws, i.e. machine saws with a vertically reciprocating narrow saw blade chucked at both ends for contour cutting

Landscapes

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

Abstract

217,731. Zopp, A. May 15, 1923. Reciprocating-saw machines. - The supporting arms 4, 5 are held by a strut 9 and a tensioning rod 10, and a, spring 51 serves to pull the arms apart in the event of a blade breaking. To provide for alteration of stroke without stopping the drive, the lower driven arm 5 is connected to the driving crank 27 through links 28, 29, the pivot bolt 20 of which is mounted to swing about a pivot 21, which is itself adjusted by means of links 31 - - 34, and foot-levers 39, 40.
GB1297123A 1923-05-15 1923-05-15 Fret saws Expired GB217731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1297123A GB217731A (en) 1923-05-15 1923-05-15 Fret saws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1297123A GB217731A (en) 1923-05-15 1923-05-15 Fret saws

Publications (1)

Publication Number Publication Date
GB217731A true GB217731A (en) 1924-06-26

Family

ID=10014452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1297123A Expired GB217731A (en) 1923-05-15 1923-05-15 Fret saws

Country Status (1)

Country Link
GB (1) GB217731A (en)

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