US PATENT SUBCLASS 83 / 728
.~.~.~.~.~.~.~ Movement by rack and pinion or pawl

Current as of: June, 1999
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83 /   HD   CUTTING

401  DF  WITH MEANS TO CONVEY WORK RELATIVE TO TOOL STATION {18}
703  DF  .~ Plural passes of diminishing work piece through tool station {2}
707  DF  .~.~ Work rectilinearly reciprocated through tool station {3}
713  DF  .~.~.~ With means to cause movement of work transversely toward plane of cut {2}
717  DF  .~.~.~.~ By means to define increment of movement toward plane of cut {3}
719  DF  .~.~.~.~.~ By pusher mechanism {3}
722  DF  .~.~.~.~.~.~ Including plural, simultaneously acting pusher elements {6}
728.~.~.~.~.~.~.~ Movement by rack and pinion or pawl

DEFINITION

Classification: 83/728

(under subclass 722) Device wherein a work engaging means includes a rectilinear, toothed member attached to or integral with the underside thereof, and wherein said means is advanced toward the cutting plane by either (a) a driven, toothed gear means which engages said rectilinear member by intermeshing teeth therewith, or (b) a driven, reciprocating finger which engages a tooth of the rectilinear member on one stroke, and slides over that tooth on the return stroke.