GB122757A - Hack-Saw Machines. - Google Patents

Hack-Saw Machines.

Info

Publication number
GB122757A
GB122757A GB707218A GB707218A GB122757A GB 122757 A GB122757 A GB 122757A GB 707218 A GB707218 A GB 707218A GB 707218 A GB707218 A GB 707218A GB 122757 A GB122757 A GB 122757A
Authority
GB
United Kingdom
Prior art keywords
arm
saw
block
lever
hack
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
GB707218A
Inventor
Hallock Wardman
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 GB707218A priority Critical patent/GB122757A/en
Publication of GB122757A publication Critical patent/GB122757A/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
    • B23D51/16—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 drives or feed mechanisms for straight tools, e.g. saw blades, or bows
    • B23D51/20—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 drives or feed mechanisms for straight tools, e.g. saw blades, or bows with controlled feed of the tool, or with special arrangements for relieving or lifting the tool on the return stroke

Landscapes

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

Abstract

122,757. Wardman, H. April 26, 1918. Reciprocating-saw machines. - A device for raising the blades of hack-saw machines from the work during the idle stroke comprises a quadrant arm 20 secured to the arm 8 upon which the saw frame slides and which is pivoted upon the driving-shaft 6, a lever 16 pivoted to a bracket 17 and adapted to be raised during the idle of the saw by an eccentric 15, a forked block 25 straddling the arm 20 and freely suspended from the lever 16 by a link 27, and two members or pins 28 secured in the block 25, one on each side of the arm 20. When the lever 16 is raised, the pins 28 grip the arm 20 and raise the saw through a distance which is regulated by adjusting a stop 2 that supports the block 25 in a substantially horizontal position during the cutting stroke, the arm 20 being then free. The block 25 is pulled downwards by a spring 24.
GB707218A 1918-04-26 1918-04-26 Hack-Saw Machines. Expired GB122757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB707218A GB122757A (en) 1918-04-26 1918-04-26 Hack-Saw Machines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB707218A GB122757A (en) 1918-04-26 1918-04-26 Hack-Saw Machines.

Publications (1)

Publication Number Publication Date
GB122757A true GB122757A (en) 1919-02-06

Family

ID=32342823

Family Applications (1)

Application Number Title Priority Date Filing Date
GB707218A Expired GB122757A (en) 1918-04-26 1918-04-26 Hack-Saw Machines.

Country Status (1)

Country Link
GB (1) GB122757A (en)

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