Method for the hydraulic control of an articulated or toggle-lev

Details Method for the hydraulic control of an articulated or toggle-lev Method for the hydraulic control of an articulated or toggle-lev

1994-03-23

1996-10-08

Gerrity, Stephen F.

Presses

Methods

72373, 7245303, 83 13, 836391, 100272, B30B 116

Patent

active

055620264

ABSTRACT:
A method for hydraulic control of a toggle lever press in which the velocity of a driving piston rod is increased at least once in the working region of a press ram. The velocity of the press ram is thus kept relatively constant up to bottom dead center (or upper dead center) of the press ram. A toggle lever press has a control adapted for carrying out this method.

REFERENCES:
patent: 1007792 (1911-11-01), Orton
patent: 2780117 (1957-02-01), Bauer et al.
patent: 4303012 (1981-12-01), McGlennon

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