Title: Apparatus for advancing strand material

Abstract: An apparatus is disclosed for the attenuation or advancing of strand material, such as glass strands. The apparatus includes a single belt and a plurality of wheels around which the belt is driven and guided. The strand is attenuated as it passes between the belt and one of the wheels. The wheel which, along with the belt, attenuates or advances the strand may have a plurality of pins or bars to form its exterior surface, which surface is then discontinuous. Alternatively, this wheel surface may be continuous. The driving force for the belt comes from another of the wheels, with the driving force being applied to the belt on the opposing surface of the belt from that which contacts the strand.

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Inventors: Drummond, Warren W. (Allison Park, PA, US)

Application Number: 891565
Filing Date: 1978-03-29
Publication_date: 1980-06-17
Assignee: PPG Industries, Inc. (Pittsburgh, PA)
Primary Class(es): 226/171 19/299, 28/107, 65/535
Other Classes:
US Patent Ref:

2685763	Aug, 1954	Courtney et al.	226/170.
2690628	Oct, 1954	Courtney et al.	65/11.
3293013	Dec, 1966	Drummond	65/9.
3676096	Jul, 1972	Schuller et al.	65/3.
3746230	Jul, 1973	Gelin	65/9.
3887347	Jun, 1975	Reese	65/2.
3915681	Oct, 1975	Ackley	65/11.
3955952	May, 1976	Drummond	65/11.
3997308	Dec, 1976	Drummond et al.	65/2.
3999971	Dec, 1976	Drummond	65/9.
4013433	Mar, 1977	Briar	65/11.
4033741	Jul, 1977	Drummond	65/11.

Other Refs:
Primary Examiner: Gilreath, Stanley N.
Assistant Examiner:
Attorney: Curley; John E., McDonald; Alan T.