Abstract: The strand guide device includes a generally vertical base plate, a pair of vertically spaced strand guide rolls secured to the base plate in cantilever fashion, and a generally vertical strand guide plate extending from the base plate parallel to and principally adjacent the upper one of the rolls and having a contoured upper edge defining a generally U-shaped strand guide portion adapted to confine moving strands and a slot portion inclined upwardly toward the strand guide portion and adapted to hold a stationary standby strand in readiness for insertion into a group of moving strands.

Abstract: A testing method and apparatus for measuring the frictional force between abrasive surfaces and a fibrous mat are disclosed. The measure of the frictional force gives an indication of the looseness of the bonding of the fibers on the surface of the mat.

Abstract: A stream feeder for supply of streams of molten glass for attenuation into fibers. The feeder is formed of metal and is electric-resistance heated. The bottom wall and sidewalls of the feeder are of varied thickness and are formed from a single sheet of metal. The disclosure also includes method and apparatus for forming the bottom wall and varied thickness sidewalls from a single sheet of metal.

Abstract: The disclosure embraces a support arrangement for a stream flow section or area of a feeder or bushing adapted to flow a large number of streams of glass or other fiber-forming mineral material for attenuation to fibers or filaments wherein the support arrangement includes a tubular support means for the stream flow section connected with transversely arranged tubular members adapted to be attached to a mounting frame, the tubular means and members accommodating circulating cooling fluid for conveying away heat from an area of the feeder floor to eliminate sagging of the feeder floor section and to promote thermal stability of the heat-softened glass throughout the area of the feeder floor.

Abstract: A stream feeder for supply of streams of molten glass for attenuaton into fibers. The feeder is formed of metal and is electric-resistance heated. The bottom wall and sidewalls of the feeder are of varied thickness and are formed from a single sheet of metal. The disclosure also includes method and apparatus for forming the bottom wall and varied thickness sidewalls from a single sheet of metal.