Clamp for lock key duplicating machine

Details Clamp for lock key duplicating machine Clamp for lock key duplicating machine

1986-03-05

1987-12-01

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51 98R, 269254CS, 269 88, B24B 4106

Patent

active

047095113

ABSTRACT:
A clamp for duplicating machines for lock keys comprising a pair of jaws (1,1',2,2') which are mounted on a threaded pin (4) rigid with a clamp support carriage (3), means for approaching said two jaws (1,1', 2,2') when clamping the key, and elastic means (8,6) interposed between said two jaws (1,1', 2,2') to keep them spaced apart. The clamp comprises, in a position misaligned with the line of action of the applied clamping force and at the opposite side with repect to the gripping faces of the jaws (1,1', 2,2'), a projecting portion causing, during the clamping stage, a moment opposite to the reaction moment caused by the clamped key.

REFERENCES:
patent: 2114757 (1938-04-01), Yerkes
patent: 2437927 (1948-03-01), Becker
patent: 2604739 (1952-07-01), Evans
patent: 3507169 (1970-04-01), Signer
patent: 3941363 (1976-03-01), Ogg

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