Plastic and nonmetallic article shaping or treating: processes – Removal of liquid component or carrier through porous mold...
Patent
1979-03-05
1981-03-31
Parrish, John
Plastic and nonmetallic article shaping or treating: processes
Removal of liquid component or carrier through porous mold...
264310, B28B 126
Patent
active
042592798
ABSTRACT:
A rotatable carriage for supporting split-type plaster molds for molding ceramic hollowware is disclosed, in which the molds are retained between two frames rotatable to a succession of positions in which the molds are retained in place between the framework of one of said frames and a dual cell inflatable member on the inner face of the other of said frames. The first of said frames includes a retaining member engaging the outer surface of said mold to prevent said mold from slipping relative to said frames. A new casting method is disclosed in which the slip is poured from the filled molds in at least two steps with the rotatable frames being rotated to a different position for each of said pouring steps.
REFERENCES:
patent: 3691266 (1972-09-01), Greenberg
Parrish John
Regal China Corporation
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