Method and apparatus for producing a continuous even strand of f

Details Method and apparatus for producing a continuous even strand of f Method and apparatus for producing a continuous even strand of f

1973-12-04

1977-06-21

Reeves, Robert B.

Dispensing

Automatic control

Constant weight, volume or pressure control by output

19105, 19240, D01G 1540

Patent

active

040306356

ABSTRACT:
The deviations in measuring the density of the fiber strand caused by manufacturing tolerances in the take-off rolls are monitored by integrating the deviations in densities from a preset value over periodic intervals in a control device. The integrator is controlled by periodic impulse signals and is used to adjust the transporting air stream so as to regulate the pressure drop to achieve an even strand.

REFERENCES:
patent: 3141202 (1964-07-01), Linnert et al.
patent: 3412699 (1968-11-01), Culp et al.
patent: 3561643 (1971-02-01), Kloven
patent: 3709406 (1973-01-01), Binder et al.

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