GB650581A - Improvements in slab shears - Google Patents

Improvements in slab shears

Info

Publication number
GB650581A
GB650581A GB6413/48A GB641348A GB650581A GB 650581 A GB650581 A GB 650581A GB 6413/48 A GB6413/48 A GB 6413/48A GB 641348 A GB641348 A GB 641348A GB 650581 A GB650581 A GB 650581A
Authority
GB
United Kingdom
Prior art keywords
shaft
crank
frame
blade member
shear blade
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
GB6413/48A
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.)
VICTOR BOHLER
Original Assignee
VICTOR BOHLER
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 VICTOR BOHLER filed Critical VICTOR BOHLER
Publication of GB650581A publication Critical patent/GB650581A/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
    • B23D21/00—Machines or devices for shearing or cutting tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)

Abstract

650,581. Shearing. BOHLER, V. March 1, 1948, No. 6413. Convention date, March 1, 1947. [Class 83 (iv)] In a slab shearing machine the lower shear blade member 4 is operated through a push-rod 5 by a crankshaft 2 carried in a frame 12 mounted below the slab-supporting means and the upper shear blade member 7 is bolted and keyed between a pair of links 8 which act as guides for the lower shear blade member 4 and are supported against the horizontal component of the thrust by bearings 11 attached to a fixed part of the machine. The crank-shaft 2 is driven at each end through spur gears from twin motors 1 and the frame 12 is pivoted to an intermediate shaft 13 in the drive and is vertically adjustable by a threaded spindle 15 operated by an electricallydriven worm gear 14. Journals 9 rigidly fixed to the links 8 and carrying bushes 10 are guided in the bearing shields 11 attached to the roller feed table. In cutting large sections the crank-shaft 2 makes a complete revolution but for small sections the frame 12 is lowered by the worm gear 14 until the upper blade 6 is about 50 mm. above the work and the crank-shaft is partially rotated in reverse directions by reversing the motors 1, the stroke being controlled by a limiting switch arranged so that the lower blade 3 is arrested at a position about 20 mm. below the work after each cut.
GB6413/48A 1947-03-01 1948-03-01 Improvements in slab shears Expired GB650581A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU650581X 1947-03-01

Publications (1)

Publication Number Publication Date
GB650581A true GB650581A (en) 1951-02-28

Family

ID=19733021

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6413/48A Expired GB650581A (en) 1947-03-01 1948-03-01 Improvements in slab shears

Country Status (1)

Country Link
GB (1) GB650581A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757731A (en) * 1953-10-05 1956-08-07 Schloemann Ag Bloom and slab shears

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757731A (en) * 1953-10-05 1956-08-07 Schloemann Ag Bloom and slab shears

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