Apparatus for loading and unloading presses

Plastic article or earthenware shaping or treating: apparatus – Gang-press – plural parallel leaves or platens

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Details

100196, 214 1B, 214 164R, 425406, 425455R, B29C 300

Patent

active

039663809

ABSTRACT:
There is disclosed a method and apparatus for molding rubber or similar products, involving the use of a press which is disclosed as being vertically arranged with hydraulic operation being provided by a hydraulic piston and cylinder apparatus which includes means for moving a series of platens upwardly to compress therebetween certain molds which are inserted therein, the platens being adapted to be suspended in open condition when the hydraulic means is appropriately actuated, there being provided at each side of the press a series of mold supports which are arranged to move as by swinging from the side of the press around into position to permit molds carried thereby to be inserted in and withdrawn from the press, the contemplation being that sequential operation of these mold supports will be effected whereby molds may be loaded with raw material while a previously loaded series of molds is in the press between the platens thereof, said last named series being withdrawn and the first series now loaded arranged to move the molds with the raw material therein into the openings provided by spaces between the platens for subsequent pressure and heating of the molds to provide the finished products.

REFERENCES:
patent: 709285 (1902-09-01), Wilkes
patent: 1332457 (1920-03-01), Burkhardt
patent: 1607073 (1926-11-01), Gras
patent: 2338329 (1944-01-01), Hermanns
patent: 3242532 (1966-03-01), Borah
patent: 3518724 (1970-07-01), Book
patent: R27223 (1971-11-01), Nelson

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