B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
198/85
B65G 43/06 (2006.01)
Patent
CA 1283379
Title: A DRIVE MOTOR CONTROLLING DEVICE FOR A MATERIAL TRANSPORTING CONVEYOR ABSTRACT OF THE DISCLOSURE 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 said 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.
561509
Bereskin & Parr
Eunson Charles S.
Strong Equipment Corporation/societe D'equipment
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