GB513807A - Hydraulically operated hacksaw - Google Patents

Hydraulically operated hacksaw

Info

Publication number
GB513807A
GB513807A GB1654538A GB1654538A GB513807A GB 513807 A GB513807 A GB 513807A GB 1654538 A GB1654538 A GB 1654538A GB 1654538 A GB1654538 A GB 1654538A GB 513807 A GB513807 A GB 513807A
Authority
GB
United Kingdom
Prior art keywords
valve
pistons
piston
saw
liquid
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
GB1654538A
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
Priority to FR7526D priority Critical patent/FR7526E/en
Application filed by Individual filed Critical Individual
Priority to GB1654538A priority patent/GB513807A/en
Publication of GB513807A publication Critical patent/GB513807A/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
    • B23D49/02—Hacksaw machines with straight saw blades secured to a rectilinearly-guided frame, e.g. with the frame fed stepwise in the plane of the guide
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/36—Carpet-beaters

Landscapes

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

Abstract

513,807. Sawing. EISENLOHR, H. June 2, 1938, No. 16545. [Class 145 (ii)] In a hydraulically - operated hacksaw, the blade frame is carried by two opposed horizontal coaxial cylinders which are guided on hollow pistons through which pressure liquid is supplied, the horizontal pistons being supported on hollow pistons working in vertical cylinders by which the saw is fed downwards. The blade 1 is mounted in a frame formed with cylinders 3, 4 of different diameter which work on pistons 7, 8 fixed in a carrier supported by hollow pistons 9, 10 working in fixed cylinders 11 by which the saw is adjusted towards and away from the work. Pressure liquid is supplied to the working and feed cylinders from a pump 14 through a piston control valve 58 operated at the end of each stroke by a liquid relay responsive to the movement of the saw. At the end of the working stroke to the right, stop 40 on the saw frame engages lever 42 and lowers relay piston valve 57 whereby pressure liquid is supplied from pipe 37 to the left of the large piston on valve 58. Liquid is thereby forced by the movement of valve 58, through pipes 27, 22 into cylinder 11 thus raising pistons 10 and lifting the saw away from the work. Pressure liquid is then supplied from pump 14 through pipes 16<1>, 12<1> and hollow piston 9 to the smaller cylinder 4 to effect the return stroke. At the end of the return stroke stop 41 engages lever 42 and raises valve 57 thus connecting the left side of large piston 58 to the exhaust pipe 39. Pressure liquid from pipe 25 then flows through pipe 23 to the upper sides of pistons 10 thus forcing the saw downwards on to the work. Liquid forced by pistons 10 through pipes 22 and 27 moves piston 58 to the left the rate of movement being controlled by valve 55. Liquid may then flow past regulating valve 18 through pipes 16, 12 and piston 9 to the larger cylinder 3 to bring about 'the working stroke. Downward feed movement of the saw is limited by stop 32 which forces valve 56 downwards and closes the feed passages.. The work is clamped by piston 47 supplied with pressure liquid from pipe 48 through the hand-controlled valve 50.
GB1654538A 1938-06-02 1938-06-02 Hydraulically operated hacksaw Expired GB513807A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7526D FR7526E (en) 1938-06-02 Device to beat dust from dresses, rugs and others
GB1654538A GB513807A (en) 1938-06-02 1938-06-02 Hydraulically operated hacksaw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1654538A GB513807A (en) 1938-06-02 1938-06-02 Hydraulically operated hacksaw

Publications (1)

Publication Number Publication Date
GB513807A true GB513807A (en) 1939-10-23

Family

ID=10079245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1654538A Expired GB513807A (en) 1938-06-02 1938-06-02 Hydraulically operated hacksaw

Country Status (2)

Country Link
FR (1) FR7526E (en)
GB (1) GB513807A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424091A1 (en) * 1978-04-28 1979-11-23 Amada Co Ltd METHOD AND APPARATUS FOR ADJUSTING THE FEED FORCE IN A HORIZONTAL BAND SAW
FR2637826A1 (en) * 1988-10-17 1990-04-20 Missler Patrick HORIZONTAL TAPE MACHINE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424091A1 (en) * 1978-04-28 1979-11-23 Amada Co Ltd METHOD AND APPARATUS FOR ADJUSTING THE FEED FORCE IN A HORIZONTAL BAND SAW
FR2637826A1 (en) * 1988-10-17 1990-04-20 Missler Patrick HORIZONTAL TAPE MACHINE
EP0365381A1 (en) * 1988-10-17 1990-04-25 Patrick Missler Horizontal bandsaw
US5062335A (en) * 1988-10-17 1991-11-05 Patrick Missler Horizontal band-saw

Also Published As

Publication number Publication date
FR7526E (en) 1907-08-21

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