Jaw crushers

Details Jaw crushers Jaw crushers

1975-03-13

1976-08-24

Custer, Jr., Granville Y.

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

B02C 104

Patent

active

039762556

ABSTRACT:
A jaw crusher is provided with a pressure relieving system to allow a movable jaw of the crusher to yield in case of an excess crushing load. The movable jaw is urged outwardly by a spring and an hydraulic ram exerts inward pressure on the jaw against the spring action. The ram has a control system for reducing the ram pressure when an excess load is encountered allowing the spring to move the jaw outwardly and after a suitable time delay for re-establishing the pressure within the ram to return the jaw to its inner position against the spring action.

REFERENCES:
patent: 2532678 (1950-12-01), Shelton
patent: 2605051 (1952-07-01), Bogie
patent: 2620629 (1952-12-01), Gauldie
patent: 3099406 (1963-07-01), Kautz
patent: 3166259 (1965-01-01), Archer

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