Device for guiding a drill tool

Details Device for guiding a drill tool Device for guiding a drill tool

1975-05-19

1976-07-06

Leppink, James A.

Tool driving or impacting

With indicating or signaling means

173 38, 308 39, E21C 1102, E21C 500

Patent

active

039676862

ABSTRACT:
A device for applying the drill tool displaceably carried by the feed beam of a vehicle supported drilling machine to a rock surface located at a distance from the feed beam. The drill tool is held in position during the collaring of the drill hole by a drill guide carried by a maneuverable arm mounted on the vehicle separately from the feed beam, and which drill guide is moved into engagement with the drill tool in close proximity to the rock surface. After the drill tool has penetrated into the rock surface a distance sufficient to be supported by the drill hole, the drill guide is released by a hydraulic device and withdrawn from the drill tool by the maneuverable arms.

REFERENCES:
patent: 2244127 (1941-06-01), Smith, Jr.
patent: 2514832 (1950-07-01), Benson
patent: 2734723 (1956-02-01), Larcen
patent: 2828137 (1958-03-01), Wagner
patent: 3240278 (1956-03-01), Witwer
patent: 3516183 (1970-06-01), Serota
patent: 3612190 (1971-10-01), Wills
patent: 3842610 (1974-10-01), Willis et al.

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