Method of securing copper shells upon printing cylinders

摘要

264,821. Asbern Maschinenfabrik Akt.-Ges., and Maschinenfabrik Augsburg-Nurnberg, Akt.-Ges. Jan. 21, 1926, [Convention date]. Printing-surfaces. - Tn an intaglio printing-cylinder of the kind comprising a body of light metal and an electro-deposited coating of copper, the body is formed with longitudinal or helical grooves of dovetail or other section in which are fixed copper or other metal wires or strips by which the copper coating is firmly anchored to the body. The wire c may be of the sectional shape shown and be pressed into the groove b by rolling.