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US 3,997,308 AGranted
Apparatus for gathering fibers into a plurality of spaced apart strands
AssigneePPG Industries, Inc.
InventorsWarren W. Drummond, Robert H. Walters
Life of this patent
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Abstract
An apparatus for gathering individual glass fibers into spaced apart strands is disclosed. The individual fibers, during formation are passed over an applicator which applies a lubricant to the fibers. A circular cylindrical bar member, at an oblique angle to the application surface, contacts the spaced apart strands, and in conjunction with a cylindrical free wheeling roller, causes the fibers to be consolidated into a plurality of spaced apart strands according to the natural filament split.
Claims7
In an apparatus for forming glass fibers comprising:
- a bushing having a plurality of orifices therein from which glass fibers are drawn;
- an applicator for applying a lubricant to the individual fibers;
- means for gathering said fibers into a plurality of strands;
- and means for applying attenuating forces to said strands and the individual filaments associated therewith, the improvement wherein said means for gathering the fibers into a plurality of spaced apart strands comprises a circular cylindrical bar member oriented at an acute angle to the application surface of said applicator over which the fibers pass, said angle being determined when said application surface and said bar member are interpolated to be in touching relationship, and a circular cylindrical roller oriented approximately perpendicular to the application surface of said applicator to provide gathering of the individual fibers into a plurality of spaced apart strands by sequentially passing the fibers over said applicator, over said bar member and over said roller.
1 more element
Dependencies are inferred from the claim text.