Printing; a practical treatise on the art of typography as applied more particularly to the printing of books; (1890)
Jacobi, Charles Thomas, 1853-1933 · London : G. Bell and sons · leaf 235
Fig. 128, spaces, non-interference with existing machinery; also thelittle attention they require, their cleanliness, and last, butnot least, the convenience of having power at commandat a moments notice. p 210 PRINTING. Witli regard to the water motor above-mentioned, the Backus is the only system… … power, but the cost of driving is perhaps more. It is verysimple in construction, and occupies a very small spaceindued. A small jet of water is played on the plates GAS ENGINES. 211 or tongues inside the hollow iron wheel, which are arrangedround the spindle on which it revolves. As soon as…
Printing
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