Rotary shredding apparatus

Solid material comminution or disintegration – Apparatus – With automatic control

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Details

241236, B02C 2500

Patent

active

044524005

ABSTRACT:
Rotary shredding apparatus for processing materials of various sorts in which the hydraulic drive for the counterrotating cutter shafts comprises a reversible hydraulic motor supplied with pressure fluid under the directional control of a fluid flow reversing valve. The flow reversing valve is controlled by a zero speed responsive device for sensing jam conditions that could stop cutter shaft rotation, thereby placing the valve in a control system which is independent of the pressure conditions in the fluid pressure system so that the hydraulic motor will continue to be supplied with pressure fluid up to the limit set by the usual pressure relief means.

REFERENCES:
patent: 2674231 (1954-04-01), Erickson
patent: 2984985 (1961-05-01), MacMillin
patent: 3336861 (1967-08-01), Clar
patent: 3366016 (1968-01-01), Anderson
patent: 3502276 (1970-03-01), Panning et al.
patent: 3845907 (1974-11-01), Schwarz
patent: 3860180 (1975-01-01), Goldhammer
patent: 3868062 (1975-02-01), Cunningham et al.
patent: 3981455 (1976-09-01), Kaczmarek
patent: 4034918 (1977-07-01), Culbertson et al.
patent: 4035790 (1977-07-01), Farmer
The Coats Tire Shredder Spec. Sheet, 1974.
Fluid Power Handbook & Directory, 1974-1975.

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