(under subclass 52) Device, provided with at least two prongs (or sets of such prongs) in which one or another of such prongs is optionally operable to contact the variations and move the material.
(1) Note. A "set" comprises a plurality of prongs all of which partake of the same movement. Included within the meaning of the term "set", as used above, is a pinwheel assembly comprising two coaxial, equal-diameter sprockets, or a claw having at least two teeth spaced laterally* of the material, where in either case all the teeth of a set coact
simultaneously in at least two laterally opposite marginal perforations in the same web to move said web. To be placed herein as an original, a patent disclosing such a set would also disclose and claim another sprocket of pitch diameter or lateral spacing or speed of movement different from the first-mentioned set, thereby, for example, to feed one web at a speed different than another even through the rotational speed of the sprocket remains unchanged, or to feed webs of different lateral widths, or such patent would disclose and claim another set of prongs (on the same claw described above, or on a different claw) wherein the speed of movement or the lateral spacing of the prongs comprising such other set, is different from that of the first-mentioned set.
SEE OR SEARCH THIS CLASS, SUBCLASS:
50, for selectively reversible feed means which may include prong structure.
