Plastic article or earthenware shaping or treating: apparatus – Reshaping – resizing or vulcanizing means for tire – tire... – Plural female molds for plural preforms
Patent
1985-12-04
1987-03-03
Hoag, Willard E.
Plastic article or earthenware shaping or treating: apparatus
Reshaping, resizing or vulcanizing means for tire, tire...
Plural female molds for plural preforms
100193, 100195, 100199, 100237, 425 35, 4254501, B29C 3502
Patent
active
046472738
ABSTRACT:
A hydraulic tire curing press comprises a center column and two outer columns respectively located at the apex and ends of a shallow V, and a pair of press cavities each located between the center column and a respective outer column. The press cavities each include a lower cavity part and an upper cavity part, the latter being supported by and between the center column and respective outer column for vertical movement by an in line or shallow V arrangement of actuators which raise and lower the upper cavity parts in order to open and close the press cavities. The center column, when at the front of the press, is used as a common mount for a pair of tire loaders respectively associated with press cavities. Roller guide assemblies, which maintain each upper cavity part during vertical movement thereof centered to and parallel to the respective lower cavity part, include a vertical rail on each column and plural rollers on the upper cavity part for engaging, respectively, two opposite sides and a third side of each rail.
REFERENCES:
patent: 2343881 (1944-03-01), Brundage
patent: 2358764 (1944-09-01), Soderquist
patent: 3550196 (1970-12-01), Gazuit
patent: 3564649 (1971-02-01), Soderquist
patent: 3697206 (1972-10-01), Bonazzi
patent: 3734656 (1973-05-01), Balle
patent: 4484874 (1984-11-01), Okawachi
Naylor Gary R.
Singh Anand P.
Hoag Willard E.
NRM Corporation
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