Presses having platen leveling means

Details Presses having platen leveling means Presses having platen leveling means

1978-04-19

1979-06-05

Wilhite, Billy J.

Presses

Automatic or material triggered control

Of parallelism of platens

91171, 100258A, 100269R, B30B 1524

Patent

active

041570669

ABSTRACT:
Hydraulic mechanism controlling approach and separation of relatively movable platens of a press is provided to maintain them in parallel relation. If one of two columns of the press advances relative to the other, the advanced column is slowed by restricting fluid flow return from its cylinder. Diagonally opposite cylinders in a four-column press are thus controlled.

REFERENCES:
patent: 2343167 (1944-02-01), Bench
patent: 2377007 (1945-05-01), Hess
patent: 2484908 (1949-10-01), Purcell
patent: 2753689 (1956-07-01), Biggert
patent: 3059431 (1962-10-01), Munschauer

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