Apparatus for synchronizing the speed of a material spreader or

Details Apparatus for synchronizing the speed of a material spreader or Apparatus for synchronizing the speed of a material spreader or

1975-10-31

1977-04-26

Tollberg, Stanley H.

Fluid sprinkling, spraying, and diffusing

With mobile tank-type supply means

Operational means interconnected with ground traverse

137 47, B05B 906

Patent

active

040196852

ABSTRACT:
A mechanical cam-type apparatus is provided for ensuring even application of agricultural products or the like onto a field or the like from a moving vehicle notwithstanding variations from time to time in the ground speed of the vehicle. The apparatus includes a pair of opposed, yieldably biased-together cam members respectively coupled to the vehicle and spreading apparatus and separably rotatable in accordance with vehicle speed and the operational speed of the spreader; the cams are cooperatively configured and mounted for relative shifting movement caused by differences in the respective rotational speeds thereof, and means coupled between the cams and spreader motor is provided for variably operating the latter in response to the extent of cam shifting in order to automatically regulate spreader output in accordance with vehicle speed. In preferred forms the spreader is powered by a variable output hydraulic motor, and shunt valve apparatus actuated by the described cam shifting is provided for varying spreader output with vehicle speed.

REFERENCES:
patent: 2026814 (1936-01-01), Caldwell et al.
patent: 3027776 (1962-04-01), Snyder
patent: 3233832 (1966-02-01), Hallberg
patent: 3441039 (1969-04-01), Rawson
patent: 3516427 (1970-06-01), Barnes
patent: 3784100 (1974-01-01), Kirschmann

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