Measuring and testing – Sheet – woven fabric or fiber – Filament
Patent
1979-10-15
1981-12-01
Yasich, Daniel M.
Measuring and testing
Sheet, woven fabric or fiber
Filament
19239, 28250, 73 377, G01B 1304, D01H 552
Patent
active
043029680
ABSTRACT:
The method is used for producing measuring values depending on the linear density of a fiber sliver transported through a measuring funnel. A measuring signal transmitted from the measuring funnel is transformed into a proportional electric voltage signal and is continually integrated. The apparatus comprises a measuring funnel connected pneumatically with a pneumatic/electric transducer which transmits a signal to an integration circuit means. A control logic which cooperates with a gear of the transmission of the spinning preparatory machine is connected with the integrating circuit means via a proximity initiator which transmits an impulse to the control logic at each passage of a tooth. The integrating circuit means supplies measuring values suitable as a control signal for spinning preparatory machines, which signal is independent of the speed of the fiber sliver.
REFERENCES:
patent: 3435673 (1969-04-01), Felix
patent: 3593566 (1971-07-01), Loopuyt
patent: 3710421 (1973-01-01), Tooka
patent: 4045659 (1977-08-01), Akagawa et al.
patent: 4051722 (1977-10-01), Feller
patent: 4074573 (1978-02-01), Nordhofen
patent: 4184361 (1980-01-01), Erben
patent: 4213056 (1980-07-01), Matsumura et al.
Rieter Machine Works Ltd.
Yasich Daniel M.
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