Plastic article or earthenware shaping or treating: apparatus – Product or preform repair or restoring means – Tire recapping – rebeading or sidewall replacing means
Patent
1976-11-30
1978-02-28
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
Product or preform repair or restoring means
Tire recapping, rebeading or sidewall replacing means
425 24, 425 36, 425 47, B29H 504
Patent
active
040764737
ABSTRACT:
This disclosure relates to a novel retread mold which includes the usual matrices and bead wheels but additionally includes a cylindrical mandrel which forms an annular chamber adapted to receive a tire to be retreaded which when pressurized brings one of the bead wheels into forceful engagement with a locking arm carried by one of a pair of platens other than the platen carrying the last-mentioned bead wheel. Novel locking means include a threaded shaft carrying a nut to which is pivotally attached a plurality of locking arms cammed to a locking position with adjustment means being provided both relative to the locking means and to means which move the platens relative to each other to accommodate tires of different sizes.
REFERENCES:
patent: 2291506 (1942-07-01), Shook et al.
patent: 2866500 (1958-12-01), George et al.
patent: 3128807 (1964-04-01), Kilgore
patent: 3184794 (1965-05-01), Sherkin
patent: 3214790 (1965-11-01), Wright et al.
patent: 3214791 (1965-11-01), Ericson et al.
patent: 3701615 (1972-10-01), Johnson
patent: 3990822 (1976-11-01), MacMillan
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