Conveyors: power-driven – Conveyor system having a gravity conveyor section – Condition responsive
Patent
1977-07-25
1980-05-13
Reeves, Robert B.
Conveyors: power-driven
Conveyor system having a gravity conveyor section
Condition responsive
198676, 222 64, 414295, B65G 4308, B65G 3326
Patent
active
042024382
ABSTRACT:
This discloses a system for lifting or conveying granular, pulverized or fluid material from a first location to a second location. A long flexible tube, open at the ends, encloses a highly flexible rotary driven helical coil spring equipped at parallel, spaced-apart positions along its length with a plurality of attachments, called "portable flights", which may comprise a shallow cylindrical cup formed from a pair of semicircular plates. The cups are secured to a succession of rungs in angularly staggered relation along the length of the helical spring, and serve to pick up and convey a substantial quantity of the pulverized, granular or fluid material from an input container, in which the tube is immersed, to a product chute near the top of the tube leading into a collection hopper. As an alternative feature for granular or pulverized material, when the pile in the hopper collects above a preselected level, a metal paddle or deflection ring is deflected, operating a toggle switch, turning off the motor which rotates the helical spring. When the pile of material falls below a given level, the toggle switch is turned on, reoperating the conveyor motor.
REFERENCES:
patent: 2354647 (1944-08-01), Blusson
patent: 3095097 (1963-06-01), Mellow
patent: 3381801 (1968-05-01), Rastein
Pugh Martha G.
Reeves Robert B.
Watts Douglas D.
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