Apparatus for forming glass fibers
AssigneePPG Industries, Inc.
InventorCarl A. Melle
Life of this patent
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Abstract
An apparatus for producing glass fibers is disclosed. The apparatus includes means associated with a cover means for an applicator for moving the glass filaments from the surface of the applicator when waste filaments are being produced such that the glass filaments are brought into contact with the application surface for coating the filaments with a binder and/or size only when production quality strand is being produced. This substantially reduces binder and/or size consumption and prevents the operator of the forming position from coming into physical contact with the binder and/or size coated strand.
Claims9
In an apparatus for forming glass fibers comprising a bushing having a plurality of bushing tips through which filaments are attenuated, an applicator having an application surface for applying binder and/or size to the filaments, a gathering means to combine the filaments into a unified strand and means for collecting the strand, the improvement wherein the applicator includes a movable cover having a bar which contacts the filaments, said bar being oriented to move the filaments from the application surface of the applicator when the cover is closed over the applicator during the attenuation of waste strand such that said waste strand is not coated with said binder and/or size.
Dependencies are inferred from the claim text.