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 157
amount of work done.We have known them last in good condition for two years,and also to require renewing in as many months. Theleather itself is inexpensive, but the table and ram have tobe lifted from their positions, which of course involvessome amount of labour. The ordinary rolling machines are… … Fig. 59—Oills Hol-rollint PRINTING MACHINERY. I41 militates against them, besides which the power requiredfor driving is incomparably greater. If both ends areworked, four or six boys are required, whereas in the newmachines two are sufficient. The zinc-plates should be keptfor a certain sized…
Printing machinery and supplies
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