Automated temporary roof support, bolter and method

Details Automated temporary roof support, bolter and method Automated temporary roof support, bolter and method

1997-05-06

1999-08-17

Graysay, Tamara

Hydraulic and earth engineering

Miscellaneous

173 31, 173 37, 405288, 405291, E21C 900, E21D 2304, E21D 2308, E21D 2320

Patent

active

059383763

ABSTRACT:
In an automated temporary roof support and roof bolting machine there are several safety features. The machine has forward operator's stations on each side of the machine. All the controls for operating the machine are in the operator's stations. The machine is pulled forward, a precise distance, by a hydraulic cylinder with a limited stroke. The pulling of the machine is controlled by safety switches requiring both operators to operate the switches in unison.

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patent: 5156497 (1992-10-01), Gaskins
Model LTDO with ATRS, Fletcher Mining Equip., Bulletin No. LTDO-0489, 1986, Huntington, WV.
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Model RR-II Low Profile, Fletcher Mining Equip., Bulletin No. LRR2/1, Nov. 1990, Huntington, WV.
Model HDDR, Fletcher Mining Equip., Bulletin No. HDDR-WT-0489, Rev. Aug. 1992, Huntington, WV.

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