Apparatus for the evaluation of yarn qualities

Details Apparatus for the evaluation of yarn qualities Apparatus for the evaluation of yarn qualities

1976-04-07

1977-08-30

Morrison, Malcolm A.

Registers

Transfer mechanism

Traveling pawl

73160, 23515113, 324 71R, G06G 766, G06G 712

Patent

active

040456595

ABSTRACT:
The invention resides in an improved apparatus for the evaluation of qualities of a running continuous yarn. The apparatus is provided with a capacitive sensor through which the yarn is passed continuously. The apparatus is also provided with a device for extracting from the sensor an output signal with amplitude or frequency components frequency distribution. It is further provided with an electronic calculating device which determines the mean and standard deviation from the foregoing distributory information.

REFERENCES:
patent: 3594558 (1971-07-01), Loepfe
patent: 3683160 (1972-08-01), Windley
patent: 3731069 (1973-05-01), Goto et al.
patent: 3763361 (1973-10-01), Smart
patent: 3808411 (1974-04-01), Hoffmann
patent: 3809869 (1974-05-01), Gebald
patent: 3862408 (1975-01-01), Bolt
patent: 3885232 (1975-05-01), Goto
patent: 3892951 (1975-07-01), Stutz

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