Printing : a practical treatise on the art of typography as applied more particularly to the printing of books (1904)
Jacobi, Charles Thomas · London : G. Bell & Sons · leaf 316
et of operators was of course required at-eachend. The making-ready and other details in laying-oh and THE OLD PLATEN MACHINES 285 taking-off were the same as in the single platen or on thehand-press. Machines on this principle have been discarded for thoseof the cylindrical character, but they… … FlG. 157. THE DOUBLE PLATEN MACHINE. The cylindrical mode was originally adopted for printingmachinery, as was shown by Nicholsons invention in thelatter part of the eighteenth century. It was eventuallysuperseded by the flat impression of the platen, but in recentyears the first plan has come to…
