Mobile mine-roof support

Details Mobile mine-roof support Mobile mine-roof support

1986-12-05

1988-04-12

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

405298, E21D 1544, E21D 2300

Patent

active

047370513

ABSTRACT:
A mobile mine-roof support comprises a powered track-laying carriage having a carrier shaft extending longitudinally of the carriage between its tracks, the end portions of the carrier shaft being arranged to support mountings of bracket form for props supporting a roof beam which is stabilized by a lemniscate guide linkage the floorward links of which ar articulated to an attachment part or extension of one of the prop mountings, with stabilization of the laterally-pivotable props being effected by an orienting cylinder supported on the chassis.

REFERENCES:
patent: 2899800 (1959-08-01), Joy
patent: 3448584 (1969-06-01), Rieschel
patent: 4155675 (1979-05-01), Friedrichs
patent: 4348138 (1982-09-01), Blampain et al.
patent: 4613256 (1986-09-01), Zitz et al.

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