Press for moulding gramophone records or the like

Details Press for moulding gramophone records or the like Press for moulding gramophone records or the like

1976-11-18

1977-07-05

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to close mold

425 4R, 425810, B29F 100, B29H 308

Patent

active

RE0292940

ABSTRACT:
A press for moulding plastic materials for the manufacture of gramophone disc records or like flat parts comprises a fixed press platen carrying a first mould element, a movable press platen guided along columns fast with the fixed platen and a movable intermediate platen carrying a second mould element. A mechanical device is provided to urge the movable press platen to the fixed press platen. A fluid pressure is supplied between coacting cylinder and piston provided respectively in the movable platens. The intermediate platen is supported and guided by the movable platen without any contact between this intermediate platen and the columns.

REFERENCES:
patent: 3346924 (1967-10-01), Lombard
patent: 3765812 (1973-10-01), Sugiyama

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