Knock-out pin for bolt making machine

Details Knock-out pin for bolt making machine Knock-out pin for bolt making machine

1994-03-14

1995-10-10

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

With stripping or ejecting from tool

470152, B21J 1314

Patent

active

054561000

ABSTRACT:
A knock-out pin for a bolt making machine used for cold forming the heads of steel bolts is constructed with a convex pad on the end of the knock-out pin. The convex pad functions to progressively receive the shock as the head of the bolt is formed in the machine using the knock-out pin.

REFERENCES:
patent: 1111729 (1914-09-01), Blakeslee
patent: 1373726 (1921-04-01), Heiby et al.
patent: 3171144 (1965-03-01), Maistros
patent: 3728892 (1973-04-01), Sangster

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