Apparatus for pointing work pieces

Details Apparatus for pointing work pieces Apparatus for pointing work pieces

1980-02-07

1982-09-21

Crosby, Gene

Metal deforming

By three or more coacting relatively movable tools

Concurrently actuated tools

B21D 4104

Patent

active

043500366

ABSTRACT:
A tube shaping machine includes a plurality of dies each having a substantially continuous, unbroken working surface. These dies are mounted with the working surfaces positioned one adjacent to the next so as to form a tube-receiving aperture therethrough, which aperture defines in cross-section regular polygon. The dies are substantially identical in configuration, this configuration being such that reciprocating each of the dies along a predetermined straight line throughout a range of positions between a fully open position and a fully closed position of the tube-receiving aperture maintains a similar regular polygonal cross-sectional shape of said tube-receiving through aperture throughout said range of positions.

REFERENCES:
patent: 2999405 (1961-09-01), Ewart
patent: 3073374 (1963-01-01), Valente
patent: 3154978 (1964-11-01), Baker
patent: 3245247 (1966-04-01), Valente
patent: 3292414 (1966-12-01), Goeke
patent: 3370451 (1968-02-01), Schuetz
patent: 3417598 (1968-12-01), Valente
patent: 4043172 (1977-06-01), Schmittov

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