Spreader control

Details Spreader control Spreader control

1978-04-06

1980-04-08

Saifer, Robert W.

Fluid sprinkling, spraying, and diffusing

Container for non-fluid material, and scattering means

Including driven conveyor or follower feeding material...

239684, 74 11, 74 152, 74142, 74217S, A01C 1700

Patent

active

041968590

ABSTRACT:
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 combinations of conveyor and distributing unit drive conditions, including a condition wherein the distributing unit is disengaged and the conveyor is operating at a relatively high speed for fast cleanout of the unloader.

REFERENCES:
patent: 2342837 (1944-02-01), Brown
patent: 3232626 (1966-02-01), Polzin
patent: 3583242 (1971-06-01), Thornbloom
patent: 3722307 (1973-03-01), Campbell
Operators Manual, Manure Spreader 513-519-679 Sperry-New Holland, Mar.1978.
Box Spreaders, 213, 328, 513, 519, 679, 791, Sperry-New Holland, Feb. 1978.

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