Hydraulically driven press

Details Hydraulically driven press Hydraulically driven press

1978-09-01

1980-05-20

Wilhite, Billy J.

Presses

Plural presses

Concurrently actuated

100257, 100269R, 100270, B30B 1516

Patent

active

042033594

ABSTRACT:
A hydraulic press arrangement which includes at least one top cross beam and one bottom cross beam with a press ram, displaceable by means of two cylinder-piston units supplied by at least one pressure medium source, being disposed between the top and bottom cross beams. Each cylinder-piston unit includes a cylinder arranged in the bottom cross beam and in the top cross beam with a piston being guided in each of the cylinders. Two pistons of a mutually associated cylinder-piston unit are connected by way of a piston rod to the press ram. With the arrangement of the cylinder-piston units as well as the controlling of the impingement and venting of cylinder chambers, a relaxation of forces acting on the press frame, due to a subsiding of forces acting in the press working space, is prevented.

REFERENCES:
patent: 3507143 (1970-04-01), Georg
patent: 3596499 (1971-08-01), Sauerbrey
patent: 3818825 (1974-06-01), Nowak

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