Spreader for particulate material

Details Spreader for particulate material Spreader for particulate material

E - Fixed Constructions

01

H

275/16

E01H 10/00 (2006.01) E01C 19/20 (2006.01)

Patent

CA 1083195

SPREADER FOR PARTICULATE MATERIAL Abstract of the Disclosure In a spreader of the type used for spreading particulate material onto a roadway and comprising an upper hopper having a lower material discharge chamber terminating in a lower dis- charge opening, a rotatable spreader element below the discharge opening and a valve mechanism between the discharge chamber and the spreader element for controlling flow of material from the chamber to the spreader, there is provided an arrangement for shifting the valve mechanism between an opened and closed position in response to the direction of rotation of the spreader element. When the spreader element is rotating in one direction, the valve mechanism is automatically opened. When the spreader is rotated in the opposite direction the valve mechanism is automatically closed. This valve operating feature is accom- plished by transmitting force through the particulate material within the discharge chamber of the spreader device so that no physical connection is provided between the motor and the valve shifting arrangement.

310605

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