Conveyors: power-driven – Conveyor section – Reciprocating conveying surface
Patent
1994-09-20
1995-06-27
Bidwell, James R.
Conveyors: power-driven
Conveyor section
Reciprocating conveying surface
91176, B65G 2500
Patent
active
054272297
ABSTRACT:
A plurality of drive motors are operated by fluid pressure for reciprocating the floor slats of a reciprocating floor conveyor. A switching valve alternately connects the forward and rear ends of the motors to pressure and return to reciprocate the slats. A forward and a rear control valve each has a closed position in which it blocks direct communication between the switching valve and all but one of the forward and rear ends, respectively. A four-way valve has ports communicating with pressure and return and with the pilot chambers of the control valves. The four-way valve connects one pilot chamber to pressure and the other to return to cause the conveyor to convey a load in a first direction. Reversal of the pressure and return to the pilot chambers causes a reversal of the conveying direction. At least one forward end and one rear end of the motors has an internal control valve positioned to open and close a connecting passageway between adjacent motor ends.
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Two-page Product Sheet entitled Vickers Pressure Relief Valves One-Page Product Sheet entitled Directional Control Valve; Compact Controls, Inc.
Bidwell James R.
Pauly Joan H.
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