Mine roof support

Details Mine roof support Mine roof support

1990-10-29

1991-07-23

Taylor, Dennis L.

Conveyors: fluid current

Intake to fluid current conveyor

Terminal type

405295, E21D 2304

Patent

active

050339133

ABSTRACT:
A mine roof support comprises a ground engageable base section, a canopy, a shield section pivotally connected at one end to one end of the canopy and at the other end to one or more members connected to the base section, and hydraulic props for raising and lowering the canopy relative to the base section. An opening is provided in the canopy and a door is mounted with respect to the canopy for pivotable movement between a first position in which it closes or substantially closes the opening in the canopy and a second position in which it is inclined downwards away from said one end and towards the other end of the canopy for guiding material which in use falls through the opening towards a conveyor located adjacent to a mine face being worked.

REFERENCES:
patent: 3921409 (1975-11-01), Blumenthal

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