Extensible telescopic coal bunker for subsurface mining

Details Extensible telescopic coal bunker for subsurface mining Extensible telescopic coal bunker for subsurface mining

1978-09-20

1980-12-02

Sheridan, Robert G.

Conveyors: power-driven

Conveying system having plural power-driven conveying sections

With means for altering the speed of a section

198560, 414323, 414325, B65G 304

Patent

active

042366305

ABSTRACT:
A subsurface coal bunker operating to receive and discharge coal is structured with an assemblage of nested telescopic container members including one stationary member and a plurality of movable members, with the container members being formed in size in a graduated series with each container member being sized to fit into a next larger container member adjacent thereto. The movable members are telescopically extensible and contractible in order to vary the volume of the assemblage and the bunker assembly is provided with a first belt conveyor for feeding material into the assemblage and a second belt conveyor for transporting material therefrom. A reversible drive mechanism, consisting of hydraulic cylinder devices actuating a system of drive chains and pulleys, is mounted on a support frame of the bunker and operates to drive the movable members between the extended and contracted positions.

REFERENCES:
patent: 1794318 (1931-02-01), Perkins et al.
patent: 3349931 (1967-10-01), Wagner

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