The great inventions : their history, from the earliest period to the present. Their influence on civilization, accompanied by sketches of lives of the principal inventors; their labors, their hardships and their triumphs (1883)
Wilkie, Franc B. (Franc Bangs), 1832-1892 · Philadelphia and Chicago, J. A. Ruth & co. · leaf 662
f bottles ofless consequence, there is a mold composed of two partswhich are opened to admit the soft metal and then areclosed, and give shape to the exterior of the bottle, theoperator, meanwhile, with his breath hollowing the massand forcing it to fill the cavities of the mold. There is also… … GLASS-MAKING. 659 is driven down into the cavity, witli the result that themetal is forced to fill the mold, the plunger just corres-ponding on its exterior surface to the inner surface ofthe tumbler. Both crown and sheet-glass are the product of theblow-pipe, with the difference that the former is…
Inventions · Inventors
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