Material chopping apparatus

Details Material chopping apparatus Material chopping apparatus

1982-05-07

1984-12-04

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Rotary striking member with feed or discharge conveyor or...

2411017, 2411864, 241189R, B02C 13286

Patent

active

044859767

ABSTRACT:
An improved tub chopper is disclosed having a speed sensing device which automatically slows the tub sidewall speed responsive to slugging or slowing of the chopping apparatus. A positive drive to the tub sidewall is provided by means of an economically constructed undulated band secured to the sidewall and operable through a plurality of rollers on a rotating wheel to drive the sidewall. The tub floor is configured with an upwardly convex, gradually tapering shape terminating in an adjustable wing extension for enhancing the movement of material in the tub into the chopping station. Novel chopping knife construction maximizes the effective life of the chopping knives. One knife embodiment presents six different available cutting surfaces and another embodiment involves disc shaped knives wherein the entire disc periphery is utilized for cutting material. The discs are continually rotated to change the portion of the cutting edge which is in material cutting position.

REFERENCES:
patent: 2512096 (1950-06-01), Endsley
patent: 2650745 (1953-09-01), Oberwortman
patent: 2938674 (1960-05-01), Lee
patent: 3615059 (1971-06-01), Moeller
patent: 3946952 (1976-03-01), Martin
patent: 3966128 (1976-06-01), Anderson et al.
patent: 3979074 (1976-09-01), White et al.
patent: 4087051 (1978-05-01), Moeller
patent: 4088272 (1978-05-01), Grillot
patent: 4106706 (1978-08-01), Burrows
patent: 4134554 (1979-01-01), Morlock
patent: 4151961 (1979-05-01), Makofka et al.

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