Conveyors: power-driven – Conveyor section – Pusher conveyor and separate load support surface
Patent
1988-03-15
1989-08-22
Kashnikow, Andres
Conveyors: power-driven
Conveyor section
Pusher conveyor and separate load support surface
474102, 198719, 198810, 198856, 192133, 74609, B65G 4306, F16D 700
Patent
active
048587478
ABSTRACT:
A conveyor is shown having an endless material transporting member running between an idler sprocket at one end and a drive sprocket at the other, both supported in a frame of the conveyor. A drive motor is used to drive the drive sprocket, and hence the conveyor. A controlling device for the motor is provided having a pivotally mounted slack sensing lever having a first rest position spaced apart beneath an upper flight of the endless material transporting member. A counterweight, resting on a stop urges the lever in position. The lever is fixed to a pivot pin, which has a trip lever attached. Upon slack in the chain deflecting the slack sensing lever, the pivot pin rotates moving the trip lever which in turn activates a microswitch controlling the motor. Upon sufficient deflection, the motor will be de-activated. In another aspect of the invention, a foreign object sensing flap is provided, which through linking elements, can cause the motor to be similarly de-activated, upon the material being transported, being carried past the exit of the conveyor.
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Kashnikow Andres
Strong Equipment Corporation
Trainor Christopher G.
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