Impact crusher with retractable and tiltable feed chute

Details Impact crusher with retractable and tiltable feed chute Impact crusher with retractable and tiltable feed chute

1975-03-03

1978-10-17

Lake, Roy

Solid material comminution or disintegration

Apparatus

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

241239, B02C 1304, B02C 13286

Patent

active

041204590

ABSTRACT:
An impact crusher is disclosed having a rotor carrying hammers arranged to strike and throw material against target members, and a material feed assembly. The feed assembly includes a downwardly inclined chute having depending cam followers which ride upon a cam surface having a horizontal portion and a downwardly curved portion at the end of the horizontal portion remote from the rotor. An actuating device is connected to the chute to move the chute and cam followers along the cam surface and down the curved portion thereof. Thus when a large rock bridges the space between the feed chute and the target members, and fails to drop into the range of the hammers, the chute is simultaneously retracted away from the rock as the upper end is tilted downwardly toward a horizontal position, to lower or drop the rock into the range of the whirling hammers.

REFERENCES:
patent: 2609153 (1952-09-01), Moore
patent: 2763438 (1956-09-01), Medley
patent: 3202367 (1965-08-01), Nixon
patent: 3516613 (1970-06-01), Gilbert
patent: 3857519 (1974-12-01), Schafer et al.

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