Rotatable mine drilling apparatus

Details Rotatable mine drilling apparatus Rotatable mine drilling apparatus

1976-05-14

1978-07-04

Staab, Lawrence J.

Tool driving or impacting

With indicating or signaling means

173 23, 173 27, 173 36, 173 43, E21C 1102, E21C 2722

Patent

active

040983536

ABSTRACT:
A roof drilling apparatus is provided for drilling a plurality of equally spaced holes in a mine roof. The apparatus includes a rotatable base upon which is mounted a drilling mechanism, thereby effecting a circular locus of travel to the drilling mechanism. Assuming equal angular separation between successive positions, the drilling mechanism may conveniently bore a multitude of equally distanced mine roof holes for accepting conventional roof bolts and supporting the roof without dislocative movement of the apparatus. The apparatus may be configured as a single or double unit or may be formed as an attachment to almost any conventional mining vehicle.

REFERENCES:
patent: 1783290 (1930-12-01), Hulshizer
patent: 2162553 (1939-06-01), Hirschberg
patent: 2362161 (1944-11-01), Sellars
patent: 2610029 (1952-09-01), Moon
patent: 2734724 (1956-02-01), Larcen
patent: 3057416 (1962-10-01), Carlson et al.
patent: 3375880 (1968-04-01), Pyles et al.
patent: 3515227 (1970-06-01), Lokka
patent: 3659656 (1972-05-01), Mares
patent: 3729056 (1973-04-01), Paurat
patent: 3951215 (1976-04-01), Galis

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