Process and apparatus for the formation of fiber felts

Details Process and apparatus for the formation of fiber felts Process and apparatus for the formation of fiber felts

1984-03-09

1986-06-03

Lindsay, Robert

Glass manufacturing

Processes

Forming product or preform from molten glass

65 9, 65 29, 65163, 156 624, C03B 37065

Patent

active

045927693

ABSTRACT:
A process for the improvement in the distribution of fibers in a fiber felt formed by retention of fibers entrained in a gaseous current is disclosed, along with apparatus suitable for practicing that process. The gaseous current is caused to pass through an oscillating guide duct, the frequency, amplitude and median direction of the oscillation, or at least one of those aspects, may be automatically regulated and altered in response to sensed variations in the distribution of the fiber. The distribution variations are measured by determining relative absorption of radiation across different portions of the width of the felt in comparison with the mean value of that distribution.

REFERENCES:
patent: 3539316 (1970-11-01), Trethewey
patent: 4046538 (1977-09-01), Thomas
patent: 4168959 (1979-09-01), Loeffler
patent: 4210432 (1980-07-01), Brelen et al.
patent: 4263033 (1981-04-01), Michalek

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