US PATENT SUBCLASS 173 / 86
.~ Relatively elevated guide engaging cable between drive and hammer or tool

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

81  DF  MEANS TO CONTROL ADVANCE AND CYCLICALLY RECIPROCATE A CABLE-OPERATED HAMMER OR TOOL {5}
86.~ Relatively elevated guide engaging cable between drive and hammer or tool {2}
87  DF  .~.~> Drive is oscillating cable drum
88  DF  .~.~> Drive is oscillating cable engaging means {1}

DEFINITION

Classification: 173/86

(under subclass 81) Apparatus in which a structure is provided to support the cable or similar flexible element against gravity at a relatively elevated point between the means causing the cable or similar flexible element to reciprocate, and the hammer head or tool.