Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1983-10-07
1985-07-02
Husar, Cornelius J.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
405297, 299 31, E21C 2900, E21D 1552, E21D 2304
Patent
active
045264953
ABSTRACT:
A mobile mine roof support assembly has three mine roof support units coupled together by a common transverse beam. Roller devices are mounted beneath the floor sills of the support units. The roller devices are spring biased away from their floor sills so that they can lift the floor sills away from the floor of a working when the assembly is to be moved. At least one roller device of each support unit is a steerable roller device so that the assembly can be steered round bends. Each steerable roller device is pivotally mounted on its floor sill about a vertical axis, and is provided with an associated steering device. The steerable roller devices are preferably coupled together by means of a common steering device.
REFERENCES:
patent: Re28556 (1975-09-01), Swoager
patent: 3879088 (1975-04-01), Sodder, Jr. et al.
patent: 4002037 (1977-01-01), Hujimori et al.
patent: 4131317 (1978-12-01), Jamison et al.
patent: 4217067 (1980-08-01), Lagodka et al.
patent: 4330226 (1982-05-01), Welzel et al.
patent: 4380410 (1983-04-01), Bull et al.
patent: 4402634 (1983-09-01), Merten et al.
Becker Kunibert
Elsner Burckhardt
Kirchbrucher Rudiger
Gauthier Maurice E.
Gewerkschaft Eisenhutte Westfalia
Husar Cornelius J.
Stodola Nancy J.
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