Crockery & glass journal . e Free Society of Traders, men-tioned their tannery, sawmill and glass works. Pre-sumably these were in Pennsylvania, but where, or whatkind of glass was made, is not now known. The major epochs in glass manufacture may be said tobe: T. The introduction of pressed glass in 1827 at Sand- The introduction of continuous kilns, the making ofoptical glass, the making of telegraph and telephonepoles, hollow ware and bricks, lighthouse reflectoicrown glass, eyeglasses, glass cyc^, photographic lenses,lace glass, wire glass, flint glass, lamps, chimneys, table-ware, glass cl
Crockery & glass journal . e Free Society of Traders, men-tioned their tannery, sawmill and glass works. Pre-sumably these were in Pennsylvania, but where, or whatkind of glass was made, is not now known. The major epochs in glass manufacture may be said tobe: T. The introduction of pressed glass in 1827 at Sand- The introduction of continuous kilns, the making ofoptical glass, the making of telegraph and telephonepoles, hollow ware and bricks, lighthouse reflectoicrown glass, eyeglasses, glass cyc^, photographic lenses,lace glass, wire glass, flint glass, lamps, chimneys, table-ware, glass cloth with warp of silk (made in France),mineral wool, made from the slag glass refuse of ironsmelters; transmuted glass, which is tougher than castiron (made in France) ; verbundglass, the process of aGerman discoverer, which consists of putting togethertwo layers of glass made at different temperatures, andis useful to invetsigating chemists; lime glass and solubleglass, the latter being applicable to fireproofing textures. William S. Pitcairn, 44 Murray St. wich, Mass. This was Americas constribution to theart. 2. The introduction of plate glass in 1852 at Williams-burg, now a part of Greater New York. 3. The introduction of the tank method of melting in1861. 4. The introduction of natural gas as a fuel in 1884. 5. The introduction of machines for making windowglass in 1905. 6. The introduction of petroleum as a fuel in 1858. 7. The introduction of the Owens bottle making ma-chine in 1903. ? Tbe minor, but important epochs,, or steps in the. of the art may,be sard the follow-ing processes, discoveries and improvements: in theatres, where in case of fire the heat melts the in-visible minerals into a glaze, which excludes air and pre-vents combustion. The foregoing are some of the glass products, in addi-tion to the earlier mirrors, telescopes, microscopes, operaglasses, filigree glass, window glass, bottles/jugs, imita-tion precious stones, watch and
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectpottery, bookyear1875
