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 122
intro-duced what may be regarded as an extension of the discsystem. There are in the new arrangement, of which adrawing is appended, three inner discs. These revolve inthe directions indicated by the arrows, contrary to that ofthe outer one. To meet possible objections, it may bestated that the… … lli?- 47-—The Cropper JXsc The machine is now made self-tlying. The sheets arefed m the usual manner, and after printing are seized by agripper and carried down and piled face uppermost on thf-board at the back of the machine, as shown in the illustra-tion. The operator has thus both hands free for…
Printing machinery and supplies
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