Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Tire body building type
Patent
1976-03-24
1978-05-30
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Tire body building type
156 96, 156129, B29H 1736
Patent
active
040922030
ABSTRACT:
The apparatus is used for tire-retreading of the type wherein a flexible impervious covering encloses a replacement tread strip encircling the tire and is subjected to a pressure-differential so as to maintain firm engagement between the strip and the tire during bonding of the former to the latter within a heated pressure chamber. The apparatus includes at least one such cover or shroud member whose marginal edge portions overlie opposite sidewalls of the tire and are maintained in fluid-tight, sealed relationship therewith by first and second disc-like members which overlie respective ones of the envelope edge portions and the tire sidewalls and which are urged toward each other by releasable clamping means innerconnecting their radially-innermost portions and extending generally axially through the rim-mounted tire. The replacement tread strip may be formed either of precured rubber or of rubber which is cured during the retreading operation, and the tire may be either of a pneumatic type or a solid type. When the tire undergoing retreading is of the solid type, the apparatus may include a second impervious cover or shroud member which encloses the tire-mounting rim and its junctures with the tire-bead areas, and whose marginal edge portions overlie the tire sidewalls and are maintained in fluid-tight, sealed relationship therewith by the same disc-like members and associated clamping means employed in association with the first shroud member.
REFERENCES:
patent: 2014010 (1935-09-01), Wheatley
patent: 2746515 (1956-05-01), Usack
patent: 2774409 (1956-12-01), Skidmore
patent: 3236709 (1966-02-01), Carver
patent: 3779832 (1973-12-01), Reppel
patent: 3802977 (1974-04-01), Wasko
patent: 3846201 (1974-11-01), Huskins
patent: 3884740 (1975-05-01), Schelkmann
patent: 3966535 (1976-06-01), Abularach
Harrelson Rubber Company
Heard Joseph H.
Kittle John E.
Powell William A.
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