Method and means for adjusting the feed support of a rock drilli

Details Method and means for adjusting the feed support of a rock drilli Method and means for adjusting the feed support of a rock drilli

1982-04-26

1985-08-27

Meister, James M.

Tool driving or impacting

Processes

173 11, 173 43, E21B 1504

Patent

active

045372632

ABSTRACT:
The feed support of a rock drilling unit is adjusted to be a given distance from a rock surface wherein holes are to be drilled. A drill bit is moved into abutment with the rock surface. The feed support is moved relative to the bit toward the rock surface. Such movement is stopped when a depth measuring instrument determines that the feed support is at a position spaced the given distance from the rock surface.

REFERENCES:
patent: 3744575 (1973-07-01), Strommes
patent: 3980144 (1976-09-01), Roos et al.
patent: 4113033 (1978-09-01), Lindblad
patent: 4230189 (1980-10-01), Mashimo
patent: 4339946 (1982-07-01), Cole
patent: 4354779 (1982-10-01), Vaughn

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