Glass manufacturing – Processes – Forming product or preform from molten glass
28 54, 65 3R, 65 11W, 65374R, 242157R, C03B 3702
A gathering shoe is disclosed for combining glass filaments which have been attenuated from a bushing into a consolidated strand. The gathering shoe is formed of a porous material, preferably porous graphite, and has a central chamber or cavity within which is located gaseous fluid jets connected to a gaseous fluid supply. As gaseous fluid is forced through a slot in the porous shoe over which the glass filaments are combined into a unitary strand, the glass fiber strand rides on a gaseous fluid cushion. This decreases wear of the shoe and breakouts of the filaments caused by such wear and aids in drying the glass filaments.
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Barch Herbert W.
Bohy August G.
Lindsay, Jr. Robert L.
McDonald Alan T.
PPG Industries Inc.
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