Conveyors: power-driven – Conveyor section – Endless conveyor
Patent
1975-08-11
1977-05-24
Blunk, Evon C.
Conveyors: power-driven
Conveyor section
Endless conveyor
198831, 198860, B65G 1500
Patent
active
040249492
ABSTRACT:
An endless conveyor apparatus is capable of transverse bending to negotiate a curve lying substantially in a horizontal plane. Pretensioned elongated elastic beads attached to the edges of a flexible endless conveyor belt accomplishes this by accommodating the difference in travel required by the bend radius differential. Specifically, the elastic beads are pretensioned sufficiently to assure support of the belt edges and resist catenary sag adjacent the inside transverse bend radius. Rollers on the frame of the apparatus engage the elastic beads supporting and driving the belt. A spine may be provided along the longitudinal center line of the conveyor and may be engaged by a plurality of pairs of guide wheels. The elastic beads are shorter than the load portion of the belt to provide for the pretensioning function. Laterally extending corrugations assist in accommodating the transverse bending action and flexible cross lines extend along the corrugations supported from the elastic beads.
REFERENCES:
patent: 1530707 (1925-03-01), Warner
patent: 2260587 (1941-10-01), Shields
patent: 2836283 (1958-05-01), Horth
patent: 3701411 (1972-10-01), McGinnis
Kleysteuber William K.
Peterson, Jr. William J.
Blunk Evon C.
Sadowsky Gersten
The United States of America as represented by the Secretary of
Watts Douglas D.
Zack Thomas
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