GB1343091A - Force exerting apparatus - Google Patents

Force exerting apparatus

Info

Publication number
GB1343091A
GB1343091A GB1343091DA GB1343091A GB 1343091 A GB1343091 A GB 1343091A GB 1343091D A GB1343091D A GB 1343091DA GB 1343091 A GB1343091 A GB 1343091A
Authority
GB
United Kingdom
Prior art keywords
plates
arms
shoes
members
toggle linkage
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
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.)
Brammall Inc
Original Assignee
Brammall Inc
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 Brammall Inc filed Critical Brammall Inc
Publication of GB1343091A publication Critical patent/GB1343091A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/06Removing local distortions
    • B21D1/08Removing local distortions of hollow bodies made from sheet metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

1343091 Restoring to form BRAMMALL Inc 10 Nov 1971 52255/71 Headings B3Q and B3J [Also in Divisions B4 and B8] Force exerting plates 54, 56, Fig. 1, are reciprocated towards and away from each other by means of a toggle linkage 58, 60, 80, 82 mounted between frame members 36, 38, Fig. 3, and actuated by a piston-rod 26 of a cylinder 22 attached to the frame members. The plates 54, 56 can be used to restore a deformed roll of sheet material to its original cylindrical form. Strain on the pivot points of the toggle linkage is reduced by allowing the arcuately curved ends of the arms 58, 60 to bear against pivot block 48 and plates 54, 56 and the arcuately curved ends of arms 80, 82 to bear against a restraining member 100. In the embodiment shown in Figs. 1 and 3, the arm 60 comprises two arms 60a, 60b pivotally mounted on each side of the arm 58, and the arm 80 comprises two arms 80a, 80b pivotally mounted on each side of arms 58 and 82. Also the spread of the plates 54, 56 can be increased by reversing the arms 58, and 60a, 60b. In the embodiment shown in Fig. 7, shoes, e.g. 118, are removable retained on plates 54, 56 by flanges 122 and 126. The above apparatus can be used in pairs separated either by an adjustable spacing device or by members 122 and 124, Fig. 11. The later embodiment has shoes 126, 128 which are placed over the plates 54, 56 and members 122, 124 and which are separated within a deformed core whereupon holding members 132, 134 are inserted to abut flanges 130 of shoes 126, 128. In the embodiment shown in Fig. 12, an additional toggle linkage and pair of plates 54<SP>1</SP>, 56<SP>1</SP> are added between extensions 361, 38<SP>1</SP> of frame members 36, 38 and are actuated by connecting pivot pin extension 164 of the pivot block 48 to pivot pin extension 164<SP>1</SP> of the second toggle linkage by members 142, 144. In another embodiment (Fig. 13, not shown) the pivot block 48 can be connected to a pivot block of the second toggle linkage by means of members having flanges which extend over the frame members 36, 38. The second pair of plates (54<SP>11</SP> and 56<SP>11</SP>, Fig. 14, not shown) can be mounted at right angles to the plates 54, 56. In the embodiment shown in Fig. 16, the plates 54, 56 are in the form of shoes 228, 230 so that when the toggle linkage is collapsed, the ends 232 of the shoes are in engagement and can be driven into a collapsed roll by hammering a projection 238 on the cylinder 22. In a similar embodiment the ends of the shoes opposite the roll engaging ends are pivotally mounted to the cylinder 22.
GB1343091D 1971-11-10 1971-11-10 Force exerting apparatus Expired GB1343091A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5225571 1971-11-10

Publications (1)

Publication Number Publication Date
GB1343091A true GB1343091A (en) 1974-01-10

Family

ID=10463216

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1343091D Expired GB1343091A (en) 1971-11-10 1971-11-10 Force exerting apparatus

Country Status (1)

Country Link
GB (1) GB1343091A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136814U (en) * 1974-09-12 1976-03-18
GB2218400A (en) * 1988-05-14 1989-11-15 Metallifacture Ltd Vehicle jack
EP1380389A1 (en) * 2002-07-09 2004-01-14 Fagor, S.Coop. Clamping device for flat workpieces

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136814U (en) * 1974-09-12 1976-03-18
GB2218400A (en) * 1988-05-14 1989-11-15 Metallifacture Ltd Vehicle jack
GB2218400B (en) * 1988-05-14 1991-12-11 Metallifacture Ltd Vehicle jack
EP1380389A1 (en) * 2002-07-09 2004-01-14 Fagor, S.Coop. Clamping device for flat workpieces

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee