Drill box support mechanism for mining bolter machines

Details Drill box support mechanism for mining bolter machines Drill box support mechanism for mining bolter machines

1984-11-26

1985-11-26

Novosad, Stephen J.

Boring or penetrating the earth

With tool drive prime mover or above-ground mechanical...

175203, E21C 1100

Patent

active

045549842

ABSTRACT:
A drill box support mechanism for a mining bolter machine is driven by a hydraulic motor and drives a drill steel through a drill chuck. The drill box is supported on a support plate by a spring washer that extends over a central lip at the bottom of the drill box. A rod descends downwardly from the drill box offset from the center of rotation and engages a hole in the support plate.

REFERENCES:
patent: 2673452 (1954-03-01), Glaze
patent: 2850937 (1958-09-01), Ralston
patent: 3646553 (1972-02-01), Conkle
patent: 3830318 (1974-08-01), Busby et al.

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