Mining or in situ disintegration of hard material – Hard material disintegrating machines – Sidewall-working
Patent
1983-08-12
1985-05-07
Novosad, Stephen J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Sidewall-working
105 29R, E21C 3520
Patent
active
045154104
ABSTRACT:
A rack assembly for a mine winning machine drive arrangement is described. The rack assembly is associated with a longwall conveyor along which a mine winning machine is movable by the drive arrangement. The rack assembly is constituted by a plurality of rack sections and a plurality of support members for connecting the rack sections to the longwall conveyor. Each of the rack sections has a respective downwardly-extending coupling pin at each end thereof, each of the coupling pins extending through an elongate slot in a respective support member with a predetermined amount of play. Each of the coupling pins is provided with a retaining member for preventing that coupling pin from moving out of the associated slot. The rack assembly is such that the rack sections of each adjacent pair of rack sections are relatively pivotable in vertical and horizontal directions, and are relatively movable to a predetermined extent in the longitudinal direction of the rack assembly.
REFERENCES:
patent: 4082361 (1978-04-01), Lanfermann
patent: 4088370 (1978-05-01), Jarvis et al.
patent: 4155600 (1979-05-01), Lanfermann et al.
Borgschulte Fritz
Krummnack Friedrich
Schoop Gunther-Dietmar
Trumper Thomas
Gauthier Maurice E.
Gewerkschaft Eisenhutte Westfalia
Goodwin Michael A.
Novosad Stephen J.
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