Conveyor belt

Details Conveyor belt Conveyor belt

1989-04-21

1991-04-02

Skaggs, H. Grant

Conveyors: power-driven

Conveyor section

Endless conveyor

198821, 198957, B65G 1534

Patent

active

050040987

ABSTRACT:
An elongatable conveyor belt having an internal stretch limiter is disclosed. The conveyor belt includes a lower layer of transverse reinforcing cords and an upper layer of transverse reinforcing cords disposed at opposing angles relative to the transverse axis of the conveyor belt. Preferably, depressions are formed in the upper transverse reinforcing cords to facilitate troughing of the conveyor belt. An internal stretch limiter such as an angularly woven fabric, sinusoidally disposed cords or stretchable cords are provided only in the central region of the belt. Because stretch limiting devices are only provided in the center of the conveyor belt, the belt remains in tension to retain material thereon during horizontal curves while enabling the outer edge to elongate to negotiate the curve.

REFERENCES:
patent: 2712332 (1955-07-01), Annerhed
patent: 3615152 (1971-10-01), Bouzat et al.
patent: 3900627 (1975-08-01), Angioletti et al.
patent: 4387801 (1983-06-01), Hoover
patent: 4410082 (1983-10-01), McGinnis
patent: 4474289 (1984-10-01), Densmore
patent: 4637511 (1987-01-01), Johnson et al.
patent: 4770290 (1988-09-01), Eroskey et al.
patent: 4819791 (1989-04-01), Melandor

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