US PATENT SUBCLASS 173 / 41
.~.~ With plural relatively displaced gearing sections

Current as of: June, 1999
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173 /   HD   TOOL DRIVING OR IMPACTING

39  DF  WITH MEANS TO ADJUST POSITION OF AXIS OF TOOL ADVANCE {3}
40  DF  .~ Drive gearing displaced relative to source of power {1}
41.~.~ With plural relatively displaced gearing sections

DEFINITION

Classification: 173/41

(under subclass 40) Apparatus in which the tool drive includes plural driven gearing elements, and the gearing elements being relatively bodily shifted and each bodily shifted relative to the source of power in adjusting the axis along which the tool moves forward.