Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 685
, which is surrounded by a raised rim,to retain the plaster. The thin plaster is carefully led into all the recessesof the type, and then some thicker material is poured on. The plastersoon sets, and is lifted off the type, and, after drying, is ready to receivethe molten metal of which the… … Fig. 313.—Press for Stereotyping by Clay Process. Another plan is to make use of prepared clay, spread upon an iron plate,for the formation of the mould. The face of the type is brushed with ben-zine, the plate with the clay is laid upon it, and pressure is appUed. Thewhole is then dried in a slow…
Inventions
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