Solid material comminution or disintegration – Apparatus – Cooperating comminuting surfaces
Patent
1989-06-22
1990-09-11
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
Cooperating comminuting surfaces
2411017, 269 61, B02C 102
Patent
active
049559613
ABSTRACT:
A working machine comprises a machine body provided with a pair of arms which are arranged for movement toward and away from each other. The machine body is disposed for rotation, relative to a bracket mounted on the machine body, about an axis. A hydraulic cylinder assembly has a single cylinder defining therein a hydraulic chamber, and a single piston mounted to a piston rod extending through the hydraulic chamber, the piston rod having opposite ends thereof, which extend respectively from opposite ends of the hydraulic chamber, and which are fixedly connected to the bracket. Upon introduction of hydraulic fluid into the hydraulic chamber, the cylinder and a rack fixedly mounted to the outside of the cylinder are moved in the direction perpendicular to the axis, so as to cause a pinion meshing with the rack and the machine body connected with the pinion to rotate about the axis, thereby changing the direction of the plane in which the arms mounted on the machine body are moved.
REFERENCES:
patent: 1736363 (1929-11-01), Ramsden
patent: 3682327 (1972-08-01), Winne
Rosenbaum Mark
Tagawakougyou Co. Ltd.
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