(under subclass 65) Implement wherein the element and the means for causing movement of the piece comprise two members, one of which members has a series of linearly aligned spaced abutments and the other of which carries a protrusion, such members being constrained to move along paths such that, during reciprocating motion of one of said members, the protrusion latches with an abutment in one direction of such reciprocating motion to effect an increment of feed and slides over one or more abutments in the other direction to permit latching with another abutment for a second increment of feed in the next cycle of the element.
SEE OR SEARCH CLASS
74, Machine Element or Mechanism,
126+, for an intermittent grip type mechanical movement, which may include a rack and pawl; and subclasses 527+ and 575+, for mechanism including a rack and pawl, per se.
