Plastic article or earthenware shaping or treating: apparatus – Press forming apparatus having opposed press members – Opposed press shaping members insertable between opposed...
Patent
1980-02-05
1981-03-10
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
Press forming apparatus having opposed press members
Opposed press shaping members insertable between opposed...
425406, 425589, 425590, 4254501, B29C 300, B30B 100
Patent
active
042551137
ABSTRACT:
A fluid-operated press comprises a crosshead, a bead, four upstanding posts each extending vertically between each corner portion of the crosshead and each corner portion of the bead, and a slider disposed between the crosshead and the bead and slidably fitted on the posts to be slidable along the latter. An upright wall structure located outside the slider and the posts is clamped between the crosshead and the bead to enhance rigidity of the frame structure of the press. The upright wall structure has a wall portion surrounding at least that portion of the peripheral surface of each post which, as viewed in cross-section of the press through the upright wall structure, is positioned between two lines obtained by extending two adjacent sides of a rectangle which is formed by connecting the center points of the four posts.
REFERENCES:
patent: 3093863 (1963-06-01), Ehlert
patent: 3104433 (1963-09-01), Hoern
Dewa Seiki
Kanamaru Hisanobu
Kikuchi Yuzuru
Kurosawa Takuzo
Flint, Jr. J. Howard
Hitachi , Ltd.
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