Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1992-02-03
1994-05-17
Corbin, David H.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
405303, E21D 1900, E21D 2000
Patent
active
053122062
ABSTRACT:
A temporary support for a mine roof is mounted on a mobile roof bolter, and includes a main support frame pivotably connected to the bolter, a main support beam and a ground contacting beam, both extending along the same axis in front of the main support frame, and connected to each other and to the main support frame by a scissors pivot joint and a leveling pivot joint, respectively. When the scissors pivot joint opens and closes, the main support beam and ground contact beam raise and lower with respect to each other and with respect to the ground. A cross beam is mounted on the main support beam and transverse to the axis thereof, and raises and lowers in the same plane with respect to the mine face, to contact and support the mine roof. For a high lift version, the scissors pivot joint is telescopically extendable.
REFERENCES:
patent: 3959976 (1976-06-01), Blumenthal
patent: 3961487 (1976-06-01), Blumenthal
patent: 3971225 (1986-07-01), Wertelewski et al.
patent: 4236850 (1980-12-01), Koppers et al.
patent: 4252475 (1981-02-01), Cobb et al.
patent: 4266891 (1981-05-01), Plevak et al.
patent: 4269547 (1981-05-01), Harding
patent: 4284368 (1981-08-01), Albright
patent: 4297057 (1981-10-01), O'Neil
patent: 4460294 (1984-07-01), Cobb et al.
patent: 4595316 (1986-06-01), Tinnel
patent: 4662796 (1987-05-01), Fanget
patent: 4797023 (1989-01-01), Park
patent: 5156497 (1992-10-01), Gaskins
Corbin David H.
Gealow Jon Carl
Long-Airdox Company
Wetzel James M.
LandOfFree
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