Crusher for concrete structures

Details Crusher for concrete structures Crusher for concrete structures

1983-11-14

1985-04-23

Goldberg, Howard N.

Solid material comminution or disintegration

Apparatus

Combined or convertible

125 23R, 225103, 241266, 403164, 414734, 901 39, B02C 106

Patent

active

045125244

ABSTRACT:
A crusher for concrete structures, having a head carried by a traveling carrier, a rotating base supported by the head concentrically therewith for rotation relative thereto, a pair of hydraulic cylinders pivotally supported at ends by the rotating base and symmetrically disposed, a pair of jaw members pivotally supported by the rotating base and symmetrically disposed, and click-stop means provided between the head and the rotating base, the hydraulic cylinders being drivingly coupled to the respective jaw members. The rotating base and the head are coupled to each other by a rotative coupling arrangement comprising first and second disc members disposed in face-to-face engagement with each other, synthetic resin-made bearing members, and stopper means for preventing disengagement of the second disc member from the first disc member. The hydraulic cylinders and the jaw members are each supported by a pair of fulcrums provided on the rotating base at locations symmetrical with respect to the axis of the rotating base.

REFERENCES:
patent: 4196862 (1980-04-01), Tagawa

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