Conveyors: power-driven – Conveyor section – Live roll
Patent
1978-12-26
1982-01-05
Reeves, Robert B.
Conveyors: power-driven
Conveyor section
Live roll
198814, 198843, B65G 1307
Patent
active
043089461
ABSTRACT:
A gravity roller conveyor has a pair of side frames, a plurality of rollers rotatably mounted between the side frames, with provisions for conveniently converting the conveyor to a power roller conveyor including a mounting plate to receive a motor, a center bracket disposed between the side frames to receive and mount a drive shaft and end pulley at each end of the conveyor, provision for mounting a plurality of guide pulleys between the end pulleys, and a belt tightener so that an endless belt may be looped around the pulleys and tightened in place. A center spine may be provided extending the length of the conveyor to strengthen it and minimize the size of the side frames. The guide pulley mount includes a tee bar extending between the side frames with a cross bar mounted to the leg of the tee. A tension adjustment includes a tension spring and nut which threads on the leg to compress the spring against the cross bar and urge the guide pulleys mounted on the cross bar against the drive belt. The tee bar and cross bar may be canted for curved sections of conveyors which permits their use with standard tapered rollers. A belt tightener includes a slide bracket which is releasably secured to a guide bracket and a pulley mounted at an end of the slide bracket to engage the drive belt to take up slack.
REFERENCES:
patent: 1708854 (1929-04-01), Stahlhut
patent: 3344903 (1967-10-01), Holm
patent: 3563365 (1971-02-01), Loberg
patent: 3724643 (1973-04-01), Kohl
patent: 4117923 (1978-10-01), Werntz
Ouellette Machinery Systems, Inc.
Reeves Robert B.
Watts Douglas D.
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