Drill cradle with elongated slide track

Details Drill cradle with elongated slide track Drill cradle with elongated slide track

1980-03-24

1982-08-31

Reynolds, Wm. Carter

Tool driving or impacting

With indicating or signaling means

173 43, 173 28, E21B 702, E21B 1504

Patent

active

043467660

ABSTRACT:
A drill cradle comprises a carriage, an elongated slide track carried by said carriage substantially parallel to the sole of the mine gallery in which the drill cradle may be used, and at least one slide supported on said slide track movable in longitudinal direction of the latter. An elongated rail is mounted movably in longitudinal direction and tiltable about an axis on the slide. A boring bar and a drive are mounted on the rail, and at least one side member is hingedly connected to one end of the slide track, movable between a first position in which the side member forms a longitudinal extension of the slide track so that the slide may also move along the extension and a second position upwardly or downwardly extending from the slide track so as to facilitate moving of the drill cradle through a narrow underground mining gallery.

REFERENCES:
patent: 2711305 (1955-06-01), Henkel
patent: 2980372 (1961-04-01), O'Leary
patent: 3225842 (1965-12-01), Roeschen
patent: 3244240 (1966-04-01), Ragnarsson
patent: 3612190 (1971-10-01), Wills
patent: 3702162 (1972-11-01), Gronfors
patent: 3823902 (1974-07-01), Bumueller
patent: 4067398 (1978-01-01), Franzen et al.
patent: 4158520 (1979-06-01), Prebensen

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