Society of Glass Technology · [Sheffield] · leaf 652
e, Pa., U.S.A. (Brit. Pat., No.174644, September 24th, 1920. Convention date, October 16th,1919. Not yet accepted).—Relates to pressing mechanism, I MACHINERY FOR THE WORKING OF GLASS. 251 particularly that forming part of a press-and-blow machine, andconsists in providing an air-cushioning device… … Fig. 169. mould, is pressed by a water-cooled plunger, K, the rod, 96, ofwhich is fitted with a pneumatic cushioning-cylinder, 100, providedwith an adjustable release valve, 122, by which the pressure ofthe plunger, K, may be varied. The rod, 96, is threaded, and anut, 127, which makes contact with…
Glass
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