Method and arrangement for positioning a working tool to a prede

Details Method and arrangement for positioning a working tool to a prede Method and arrangement for positioning a working tool to a prede

1977-09-02

1978-09-12

Purser, Ernest R.

Tool driving or impacting

Processes

173 4, 173 21, E21C 1102

Patent

active

041130332

ABSTRACT:
A working implement such as a rock drilling apparatus is automatically positioned to predetermined positions and/or directions. Particularly, a drill bit is moved to an imaginary plane spaced from the surface to be worked upon completion of a drill hole by programming the predetermined positions such that they are in said imaginary plane. The actual values of the position and/or direction of the working implement may be adjusted simultaneously toward set values corresponding to the predetermined position and/or direction.

REFERENCES:
patent: 1755975 (1930-04-01), Willard
patent: 2596130 (1957-05-01), Cunningham
patent: 3253484 (1966-05-01), Hill
patent: 3307637 (1967-03-01), Jonsson
patent: 3481409 (1969-12-01), Westerlund
patent: 3492467 (1970-01-01), Caban et al.
patent: 3891039 (1975-06-01), Lagerstrom
patent: 3896885 (1975-07-01), Dahlstrom et al.

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