Belt tightener for spiral conveyor belt

Details Belt tightener for spiral conveyor belt Belt tightener for spiral conveyor belt

1978-07-03

1980-04-08

Stoner, Jr., Bruce H.

Conveyors: power-driven

Conveyor section

Endless conveyor

198778, B65G 2344

Patent

active

041968042

ABSTRACT:
A spiral conveyor belt is mounted between an inner cylindrical wall and a concentric outer cylindrical wall wherein the belt is formed of curved segments having an upper reach resting upon a spiralled slide plate and a lower under reach suspended therebelow, rollers at the top and at the base of the spiral about which the belt turns and means to drive the roller and belt connected thereto. The improvement is a belt tightener comprising a pair of spaced holding rollers engaging the under reach of the belt at one side thereof, a takeup roller mounted between the holding rollers at the opposite side of the belt and means to adjustably shift the takeup roller against the belt to move it between the holding rollers for taking up slack in the belt.

REFERENCES:
patent: 1497619 (1924-06-01), Waechter et al.
patent: 1803186 (1931-04-01), Hendrickson
patent: 2267970 (1941-12-01), Boal
patent: 3100565 (1963-08-01), Fry

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