Apparatus for production and cutting of glass fibres

Details Apparatus for production and cutting of glass fibres Apparatus for production and cutting of glass fibres

1981-02-20

1982-08-31

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 2, 83347, 83913, C03B 37025

Patent

active

043470718

ABSTRACT:
Apparatus for drawing newly-spun and dressed glass filaments from a bushing comprises, in combination, a rotary cutter constituted by a blade roll with radially directed blades projecting from its surface and a second, back-up roll having a resilient surface, said rolls being mounted with their axes substantially parallel and with at least the tips of the blades in contact with said resilient surface to define a cutting zone for the cutter, together with an auxiliary, independently driven start-up roll, variable speed drive means for accelerating said auxiliary roll to a surface speed at least equal to the surface speed of the back-up roll under production conditions, and guide means operable to divert a bundle of filaments being wound on said auxiliary roll to the surface of the back-up roll and thereafter into the cutting zone of the cutter, whereby the filaments are cut into staple fibres. A method of manufacturing staple fibres based on the use of above apparatus is also disclosed.

REFERENCES:
patent: 2846157 (1958-08-01), Stephens et al.
patent: 4175939 (1979-11-01), Nakazawa et al.

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