Obstruction clearing apparatus for mining conveyors

Details Obstruction clearing apparatus for mining conveyors Obstruction clearing apparatus for mining conveyors

1981-07-06

1984-03-27

Valenza, Joseph E.

Conveyors: power-driven

Conveyor system having a gravity conveyor section

Condition responsive

B65G 4300

Patent

active

044388411

ABSTRACT:
A conveyor system for use in coal mines and the like for automatically sensing by means of a gob switch positioned above the conveyor belt when a build-up of coal occurs because of an obstruction on the belt, and automatically activating a reciprocable operable ram which pushes the obstacle from the conveyor belt. The ram is electrically operated by means of a drive chain and includes a reversing switch for reversing the direction of ram movement at the point of furthest ram extension. The obstruction removing apparatus may be positioned to push the obstruction in a direction parallel to or transversely of the direction of movement of the second belt.

REFERENCES:
patent: 1259524 (1918-03-01), Kelly
patent: 1570604 (1926-01-01), Aram
patent: 2298472 (1942-10-01), Dudley
patent: 2589220 (1952-03-01), Buckeridge
patent: 2934221 (1960-04-01), Tonna
patent: 3524531 (1970-08-01), Georg
patent: 3625357 (1971-12-01), Ochs et al.
patent: 4190147 (1980-02-01), Hansson

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