Doweling hole drilling machine

Tool driving or impacting – With vehicle support for drive

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Details

173 28, 173189, 173190, 173193, E21B 702

Patent

active

057997381

ABSTRACT:
A doweling hole drilling machine includes a vehicle such as a tractor having a frame pivotally mounted to the side of the tractor. The frame is moveable around an axis parallel to the longitudinal axis of the vehicle from a first horizontal orientation to a second vertical orientation, and the raising or lowering of the frame is powered by hydraulic cylinders. Positioned on the frame are a plurality of parallel mounted spaced drilling machines, each of which is positioned for drilling a hole perpendicular to the longitudinal axis of the vehicle. Each of the drilling machines is mounted on a drive assembly for moving the machine axially to thereby force a drill bit in the machine to drill a hole. The frame is also laterally adjustable in a horizontal direction perpendicular to the longitudinal axis of the tractor and the lateral adjustment is also hydraulically powered. In a second embodiment, the invention further includes a longitudinal adjustment for moving the frame forward or backward parallel to the longitudinal axis of the tractor.

REFERENCES:
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patent: 2985250 (1961-05-01), Goodrich et al.
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patent: 3605912 (1971-09-01), Fisher
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patent: 4589499 (1986-05-01), Behrens
patent: 4915180 (1990-04-01), Schisler
patent: 5125460 (1992-06-01), Behrens
patent: 5540292 (1996-07-01), Behrens

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