Brake shoe rivet press

Details Brake shoe rivet press Brake shoe rivet press

1990-07-02

1991-04-23

Watson, Robert C.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29233, B23P 1904

Patent

active

050089951

ABSTRACT:
The brake shoe rivet press is for removing in a single operation rivets which are arranged in rows to hold a fibrous liner to the base of a brake shoe to thereby permit removal and later replacement of the liner. The press has a frame and a punch holder fixedly carried by the frame. The punch holder has a plurality of movable punches also arranged in rows and corresponding in number to the number of rivets in the brake shoe. The press includes upper and lower rams movably carried by the frame on opposite sides of the punch holder. The lower ram is provided with a support surface for positioning and supporting the brake shoe and also includes a plurality of openings arranged in rows for receiving the spent rivets. The upper ram has an operating surface, which, when the upper ram is actuated, engages the punches so as to urge them against the rivets to remove them from the brake shoe in a single operation. A hydraulic circuit is provided for controlling the movements of the upper and lower rams.

REFERENCES:
patent: 1717130 (1929-06-01), Weaver et al.
patent: 2491119 (1949-12-01), Lewis
patent: 2662960 (1953-12-01), Williams
patent: 4065843 (1978-01-01), Elola
patent: 4586359 (1986-05-01), Parks

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