Press construction

Details Press construction Press construction

1981-10-13

1984-02-07

Wilhite, Billy J.

Presses

Reciprocating press construction

With transversely displaceable piston or movable platen

100 52, 100256, 100269A, 100913, B30B 700

Patent

active

044296290

ABSTRACT:
A vertical support frame has a top reinforced surface forming a first platen surface. A second platen assembly is movable vertically in the support frame and has a surface above the first platen surface forming a second platen surface. Air bags are disposed between the frame and the second platen assembly in an arrangement to lift the second platen assembly to open the press and also to pull the second platen assembly down to close the press. The second platen assembly includes a retractable carriage for moving the second platen surface rearwardly for loading the press. A multiple bag arrangement is also within the concept of the invention and serves to position pressing surfaces directly over the first platen surface. Operating controls are provided to move the carriage platen between forward and retracted positions and also for controlling operation of the fluid operated bags to cause alternate expansion and contraction thereof in the opening and closing of the press.

REFERENCES:
patent: 1894156 (1933-01-01), Byington
patent: 2363779 (1944-11-01), Duffy
patent: 3207406 (1965-09-01), Bowman
patent: 3713381 (1973-01-01), Mort
patent: 3939765 (1976-02-01), Jung
patent: 4351223 (1982-09-01), Leonard

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