Stroke-limiting arrangement in a multi-cylinder hydraulic press

Details Stroke-limiting arrangement in a multi-cylinder hydraulic press Stroke-limiting arrangement in a multi-cylinder hydraulic press

1977-09-14

1978-08-01

Wilhite, Billy J.

Presses

Reciprocating press construction

Range of movement adjustment

100269R, B30B 1516

Patent

active

041036115

ABSTRACT:
Apparatus for maintaining the relative spacing of the pressure surfaces in a multi-cylinder press at a predetermined value greater than the desired minimum spacing during the pressing operation, and including liquid supplying means for a press cylinder, a liquid discharge valve and actuating means for mechanically opening the discharge valve when the relative spacing of the press surfaces decreases below a predetermined value. A further control valve adapted, in accordance with a predetermined program, to prevent or allow liquid to be discharged from the cylinder is also present.

REFERENCES:
patent: 2810930 (1957-10-01), MacDonald

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