Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Coacting shaping surfaces
Patent
1989-05-30
1991-03-26
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
Coacting shaping surfaces
100257, 425182, 425412, 4254517, 425454, 425DIG129, B29C 5118, B30B 116
Patent
active
050024795
ABSTRACT:
Apparatus for vertically adjusting the position of a lower mold relative to an upper mold to control the shut height or spacing between the upper and lower molds when they are moved between vertically spaced apart, open positions, and closed positions engaging opposite sides of a thermoplastic sheet of material to form an object therein.
A plurality of toggle links are pivotally coupled to each other and to the mold and frame for determining the final position of the mold and the closed position.
The toggle link mechanism for the lower mold is mounted on the frame via a horizontally adjustable wedge mechanism which vertically adjusts another cooperating wedge mounting one pivotal end of the lower toggle links.
REFERENCES:
patent: Re27137 (1971-06-01), Brown et al.
patent: 3327353 (1967-06-01), Eggenberger
patent: 3677675 (1972-07-01), Brown
patent: 3976416 (1976-08-01), Hehl
patent: 4133260 (1979-01-01), Gundal
patent: 4737093 (1988-04-01), Hori et al.
Brown Gaylord W.
Dinnan Timothy
John Brown Inc.
Mackey James P.
Norton Burnett W.
Woo Jay H.
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