Chock block skidding device designed for the powered supports us

Details Chock block skidding device designed for the powered supports us Chock block skidding device designed for the powered supports us

1986-06-09

1987-08-25

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

405291, E21D 2304

Patent

active

046889680

ABSTRACT:
A device designed to skid the chock blocks of a powered support of the type used in coal mines. The front of the skid cylinder is connected with a skid bar whose front end is jointed on an armored conveyor. The rear end of the cylinder is jointed on the rear end of an arm whose front end is jointed on the chock block pads.

REFERENCES:
patent: 3915500 (1975-10-01), Schlusener et al.
patent: 4187042 (1980-02-01), Plevak et al.
patent: 4313698 (1982-02-01), Maykemper et al.
patent: 4422807 (1983-12-01), Dettmers et al.
patent: 4491441 (1985-01-01), Freeman et al.
patent: 4518284 (1985-05-01), Becker et al.

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