Pitch tool holder

Details Pitch tool holder Pitch tool holder

1995-07-28

1997-07-15

Larson, Lowell A.

Metal deforming

By deflecting successively-presented portions of work during...

To form helical coil or tube

724816, B21F 302, B21D 3704

Patent

active

056472404

ABSTRACT:
A spring coiling machine wherein the pitch tool holder has two active plates which act as a clamp on the stem of the pitch tool. Preferably, the clamping plates are carried on a support based plate or the like, which is moveable linearly in a direction parallel to the pitch stem axis.

REFERENCES:
patent: 4444036 (1984-04-01), Shibata et al.
patent: 4991277 (1991-02-01), Itaya
patent: 5092572 (1992-03-01), Litwak et al.

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