Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . Gtnss-Fots. jf the charge. lig. 2248. Fig. Glass-press. A device to apply press- Newmans Glass-Pot. ure to glass in a mold while in a plastic state. In the press shown, theplunger is hung on a sliding head moving u|)on guidesand operated by connection with a rock-shaft. Thecover of the mold is helil down by followeis, and themold slipped in and out at the
Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . Gtnss-Fots. jf the charge. lig. 2248. Fig. Glass-press. A device to apply press- Newmans Glass-Pot. ure to glass in a mold while in a plastic state. In the press shown, theplunger is hung on a sliding head moving u|)on guidesand operated by connection with a rock-shaft. Thecover of the mold is helil down by followeis, and themold slipped in and out at the requisite is ajiplied by a lever, which is counterpoisedby a weight. Glass-roUing. About 1849, Bessemer obtaineda ])atent iu England for a process of rolli)]g , tomake ] and avoid the undulating surfaceincident to blown window-glass. Messrs. Chance, of Binninghani, expended .£100,-000 in trying to ]ierfect the machinery therefor, butfailed to acconqilish it, and abandoned the eiiter-jirise. The glass, in its pasty condition, was passedfrom a hopper between two Iollers on horizontala.\es and was Icceiveil on a flaltening-table. Glass-silver-ing. Glass for mirrors or orna-mentatiim is sihered by one ol two methods ; thefirst is merely factitio
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Keywords: ., bookcentury1800, booksubjectin, booksubjectmechanicalengineering
