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GB142422A - Improvements in fret-cutting machines - Google Patents

Improvements in fret-cutting machines

Info

Publication number
GB142422A
GB142422A GB109320A GB109320A GB142422A GB 142422 A GB142422 A GB 142422A GB 109320 A GB109320 A GB 109320A GB 109320 A GB109320 A GB 109320A GB 142422 A GB142422 A GB 142422A
Authority
GB
United Kingdom
Prior art keywords
arm
saw
machines
frame
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
GB109320A
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.)
HOBBIES Ltd
Original Assignee
HOBBIES 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 HOBBIES Ltd filed Critical HOBBIES Ltd
Priority to GB109320A priority Critical patent/GB142422A/en
Publication of GB142422A publication Critical patent/GB142422A/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

142,422. Hobbies, Ltd., and Jewson, H. Jan. 13, 1920. Reciprocating-saw machines.-Relates to fretsawing machines, and comprises means for angularly adjusting the work table and for raising the upper arm of the saw frame automatically when a saw-blade breaks. The table F is mounted on an arm E of a bracket D secured to the tool tray C and is adapted to turn upon vertically-adjustable pivots J, J<1> and upon a curved enlargement E<2> of the arm E which has a tapered hole E<1> to receive the clamping-screw G in different angular positions. When free, the upper arm L of the saw frame is raised by a spring K<2> as far as permitted by a stop K<1> on the back arm of the frame.
GB109320A 1920-01-13 1920-01-13 Improvements in fret-cutting machines Expired GB142422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB109320A GB142422A (en) 1920-01-13 1920-01-13 Improvements in fret-cutting machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB109320A GB142422A (en) 1920-01-13 1920-01-13 Improvements in fret-cutting machines

Publications (1)

Publication Number Publication Date
GB142422A true GB142422A (en) 1920-05-06

Family

ID=9716018

Family Applications (1)

Application Number Title Priority Date Filing Date
GB109320A Expired GB142422A (en) 1920-01-13 1920-01-13 Improvements in fret-cutting machines

Country Status (1)

Country Link
GB (1) GB142422A (en)

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