Spreader control

Details Spreader control Spreader control

A - Human Necessities

01

C

275/5

A01C 3/06 (2006.01) A01C 19/00 (2006.01) A01D 90/14 (2006.01)

Patent

CA 1107784

SPREADER CONTROL Abstract of the Disclosure A material unloader having a conveyor and a distributing unit includes a control assembly operative from the tractor or towing vehicle by a single hydraulic control. A jaw clutch is provided for engaging and disengaging the distributing unit drive and the power shaft. A variable speed pulley assembly is operable to engage and disengage the conveyor drive and power shaft and to vary the speed of the conveyor over a wide range of values. The jaw clutch and variable speed pulley assembly are simultaneously controlled by a cam operated shifter assembly. The cam is mounted on a control shaft along with a pawl and ratchet mechanism indexed by a hydraulic cylinder to sequentially establish various combina- tions of conveyor and distributing unit drive conditions, includ- ing a condition wherein the distributing unit is disengaged and the conveyor is operating at a relatively high speed for fast cleanout of the unloader.

320807

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