Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 362
, e. When the metal has solidi- 314 PRINTING MACHINES. fied, the core is simply lifted off, and the cast is then taken out, in the forn*of a semi-cylinder, the internal surface of which has exactly the diameterof the external surface of the roller of the machine on which it is to beplaced, in… … Fig. 156. matter of one side of the newspaper sheet, usually four pages, is ready forprinting. One great advantage of working from stereotype casts made in.this way is that the form-bearing cylinder of the machine has no greatercircumference than suffices to afford space for the matter on one side…
Inventions
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![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-211-153.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer01inte-393-152.webp)
