Printing press
OwnerRoy P. Wilsoninventor
Life of this patent
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Abstract
A novel printing press for printing a large number of different messages on sequentially fed stock, without requiring the use of a large printing drum, which also eliminates the requirement for collating. A multiplicity of drum segments are provided each having similar radii of curvature, for carrying printing type on their convex surfaces. A pressure wheel is located adjacent a pressure plate, the pressure wheel having a similar radius of curvature as each of the drum segments. The drum segments are carried each in turn around at least part of the pressure wheel between the pressure wheel and pressure plate, whereupon stock fed therebetween can be imprinted.
Claims5
A printing press comprising:
- a. a multiplicity of drum segments, having similar radii or curvature, for carrying printing type on their convex surfaces,
- b. a pressure wheel comprised of two spaced coaxial cylindrical portions, each having a similar radius of curvature as each of the drum segments, at least one cylindrical portion containing a slot which accommodates a sequential count changing and printing apparatus, each of the drum segments containing a gap to accommodate the protrusion of type from said count changing and printing apparatus,
- c. a pressure plate located adjacent the pressure wheel,
- d. a pair of spaced sprocket wheels having a smaller diameter than the diameter of said pressure wheel portions mounted with their axes coaxial with the axis of the pressure wheel between the cylindrical portions,
- e. a pair of chains disposed orthogonal and around the respective sprocket wheels, each having sprocket holes integrated with the respective sprocket wheels, the width across the outside of the chains through a diameter of the sprocket wheels being less than the diameter of the pressure wheel,
- f. means mounting the drum segments to both chains, the axes of the drum segments being parallel to the pressure wheel axis, whereby, upon rotation of the sprocket wheels, the chains are progressively drawn around the axis of the pressure wheel in unison, and the drum segments are sequentially drawn around and bear upon part of the pressure wheel between the pressure wheel and the pressure plate to imprint stock passing therethrough, while the sequential count changing and printing apparatus simultaneously imprints and further indexes.
Dependencies are inferred from the claim text.