Patent ID: 8196914

Claim:
A clamp for key cutting machines comprising: a pair of jaws mounted on a single pin fixed to a machine structure; a knob operatively coupled to said pin and causing said jaws to forcedly approach each other, against an elastic reaction of a first spring disposed between said jaws and tending to repel said jaws, said knob further causing said jaws to retain a key positioned between said jaws upon turning of said knob; a torque limiting device interposed between said knob and said pin; a cap disposed between said torque-limiting device and said laws, said cap being affixed to said pin and being further longitudinally slidable in relation to said torque-limiting device, said cap having a flange extending therefrom in proximity of said laws; and a second spring disposed between said torque-limiting device and said flange, said second spring exerting pressure both against said torque-limiting device and against said laws.