Punching device

Details Punching device Punching device

1979-01-25

1980-07-29

Jones, Jr., James L.

Metal working

Means to assemble or disassemble

Brake lining to brake shoe

29252, 83554, B23P 1518

Patent

active

042143578

ABSTRACT:
A rivetting machine for use with commercial vehicle brake-shoes, the machine having a punch holder, an anvil adjustable in height relative to the punch holder, a sprung rest for a brake shoe, and mechanism for linearly, operatively moving the punch holder, the mechanism comprising a lever actuable by a first pneumatic cylinder to take up free movement between a punch in the holder and a brake shoe on the rest, and a second pneumatic cylinder which produces further movement to effect a working operation on the brake shoe, a safety device being provided, so that, if, during the free movement, the punch holder meet resistance, the holder is immediately retracted.

REFERENCES:
patent: 1448868 (1923-03-01), Rollins
patent: 3756145 (1973-09-01), Amacker
patent: 3805583 (1974-04-01), Sivin et al.

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