Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1994-11-22
1996-12-17
Taylor, Dennis L.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
175219, 299 11, 405291, E21D 1544
Patent
active
055846114
ABSTRACT:
The present invention is directed to a movable load support used for supporting the roof in underground excavations. The load support includes a primary roof support carried on a base frame and an auxiliary roof support also carried on said base frame but laterally disposed from the primary roof support. The auxiliary roof support is longitudinally and laterally moveable with respect to the primary roof support to successively provide roof support to adjacent areas of the roof.
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Long-Airdox
Taylor Dennis L.
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