Leather press

Details Leather press Leather press

1978-04-13

1980-03-25

Lawson, Patrick D.

Leather manufactures

Machines

Presses

C14B 130

Patent

active

041943767

ABSTRACT:
A leather press in which two wedges are synchronously driven to raise a lower platen in the press from an open condition to a position adjacent an upper platen of the press. The lower platen is movably mounted on a support. The support and the wedges are in slidable engagement with one another to effect a preliminary closing of the press. A pressurizable expandable member such as a flexible diaphragm may be mounted between the movable platen and the support so that the platens are secondarily urged together by the application of hydraulic pressure, to apply the required working pressure, to a leather workpiece disposed between the platens. The diaphragm is preferably provided by a wall portion of an inflatable sac.

REFERENCES:
patent: 1332963 (1920-03-01), Tucker et al.
patent: 1375469 (1921-04-01), Richard
patent: 1533115 (1925-04-01), Hulbert

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