Conveyors: power-driven – Conveyor section – Endless conveyor
Patent
1986-05-07
1987-12-01
Spar, Robert J.
Conveyors: power-driven
Conveyor section
Endless conveyor
198500, B65G 1508
Patent
active
047098066
ABSTRACT:
A folding belt system having the head and tail pulleys twice the width of the support idler rolls and having a transition length of about 7 to 15 times the width of the belt between the fold or hinge lines, where transition width support rolls are located. The folding conveyor belt is composed of a central belt section which has specially constructed flexible areas at each edge extending longitudinally the length of the belt to which are attached cover flaps. The cover flaps completely enclose the load while it is conveyed. This reduces spillage, dust, and contamination while providing highly enhanced conveying capacity. The flaps may be of the same or different construction than the center section of the belt. In it's preferred embodiment the folded belt is constructed by suitably providing the top cover of a fully cured conveyor belt with longitudinal grooves formed by slitting and removing a strip of rubber at the appropriate locations to form preferentially flexible longitudinal hinge areas in the belt with the dominions outside the hinges comprising the cover flaps. Alternately the hinge areas can be molded into the belt at the time of manufacture.
REFERENCES:
patent: 1100654 (1914-06-01), Church
patent: 2839180 (1958-06-01), Ackers
patent: 2854351 (1958-09-01), Wilson
patent: 3338383 (1967-08-01), Hashimoto
patent: 3615152 (1971-10-01), Bouzat et al.
patent: 4149624 (1979-04-01), Douty et al.
patent: 4387801 (1983-06-01), Hoover
patent: 4410082 (1983-10-01), McGinnis
Holmes Jonathan D.
Spar Robert J.
The Goodyear Tire & Rubber Company
Thompson R. D.
Wolfe J. D.
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