(under subclass 65) Implement wherein the cyclic element and the means for causing movement of the piece comprise two devices that are (1) each reciprocable relative to the guide# and to each other along a common axis, (2) each capable of gripping and releasing either a piece of material or a force transmitting means for said piece, and (3) sequentially operative so that one device grips the piece or the force transmitting means and advances the piece while the other is in a release condition, and then the other device grips the piece or the force transmitting means while the one device releases the piece or the force transmitting means and retracts without moving the piece.
SEE OR SEARCH THIS CLASS, SUBCLASS:
65, for an implement including a single chuck, axially aligned with and relatively movable toward and from a stationary resilient gripping member, to advance solid coating material past said gripping member; and see the search notes thereto.
SEE OR SEARCH CLASS
226, Advancing Material of Indeterminate Length,
147+, for apparatus comprising alternately acting chucks for advancing such material. 254, Implements or Apparatus for Applying Pushing or Pulling Force,
107, 210, and 254, for mechanism, including alternately acting chucks or clutches, for moving a rod or bar in step-by-step fashion.
