E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
255/34
E21B 7/02 (2006.01) E21B 3/02 (2006.01) E21B 15/00 (2006.01) E21B 19/02 (2006.01) E21B 19/16 (2006.01) E21B 19/24 (2006.01)
Patent
CA 1117933
ABSTRACT OF THE DISCLOSURE A drill rig for drilling a hole in the ground including a mast, having a longitudinal slide means at one face thereof, adapted to be set upright with the slide means facing, and being at a selected spacing from and parallel to the axis of a drill hole to be drilled with the rig; a slide frame mounted upon the mast slide means and lifter-pulldown means in the mast to move the slide frame along the longitud- inal slide means; a lateral shifting means on the slide frame shiftable towards and away from the slide frame in the direc- tion of the drill hole; a drill carrier attached to the shifting means to be shifted to a first position against the slide frame and to a second position outwardly there- from; and a drill mechanism means including a drill pipe means mounted upon the drill carrier to effect drilling by a drill pipe means, with the drill pipe means being aligned with the drill hole axis when the drill carrier is at one of said positions
335696
Becker Floyd W.
Regimbal Richard R.
Drill Systems Inc.
Hewitt Neville S.
LandOfFree
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