The principles and progress of printing machinery (1900)
Southward, John, 1840-1902, Wilson, Frederick John Farlow. Account of modern printed machine · London : E. Menken · leaf 46
Fig. 12.—Cowpers Double Cylinder for both Sides of Sheet. cylinder, since by such means the form is enabled toreturn with the reciprocating motion of the table withoutbeing injured by contact with the cylinder. It will thus beseen that the circumference of the impression-cylinder mustbe exactly… … Applegath & Cowpers Double Machine. In other machines, such as two and four-feeders, theimpression-cylinders are lifted, by means of cams or othersuitable appliances, at the time of the table returning afterthe impression has been taken, in order to admit of thepassage of the type beneath them,…
Printing machinery and supplies
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