Machine for simultaneously forming threads or fins on multiple c

Details Machine for simultaneously forming threads or fins on multiple c Machine for simultaneously forming threads or fins on multiple c

1998-04-22

1999-06-29

Hail, III, Joseph J.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72110, 72 96, B21B 1912

Patent

active

059163186

ABSTRACT:
A machine for simultaneously forming helical threads or fins on the exterior of first, second and third elongated cylindrical workpieces, the machine having first, second and third arbor blocks arranged in a common plane and spaced about a center point in the plane, having first, second and third thread or fin forming discs rotatably affixed respectfully to the first, second and third arbor blocks, and having first, second and third guides longitudinally displaceably and rotationally receiving respectively the first, second and third workpieces so that the first workpiece is guided by the first guide between the first and second discs, the second workpiece is guided by the second guide between the second and third discs and the third workpiece is guided by the third guide between the first and third discs, rotary energy being coupled to at least one of the discs. In an alternate embodiment four elongated cylindrical members are provided with threads or fins.

REFERENCES:
patent: 2336133 (1943-12-01), Szabo, Jr.
patent: 4915166 (1990-04-01), Cunningham et al.
patent: 4942752 (1990-07-01), Helfman
patent: 5003690 (1991-04-01), Anderson
patent: 5365763 (1994-11-01), Cretin et al.
patent: 5644938 (1997-07-01), Moeltner et al.
patent: 5803164 (1998-09-01), Schuez et al.

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