Measuring and testing – Dynamometers – Responsive to force
Patent
1994-03-24
1996-10-22
Chilcot, Richard
Measuring and testing
Dynamometers
Responsive to force
73160, G01L 500
Patent
active
055665748
ABSTRACT:
A method for monitoring and maintaining correct regulation of the tension of a yarn fed to a textile machine, such as a loom, a hosiery machine or a knitting machine, including the steps of continuously determining both the state of movement and the tension of the yarn at a point between a support bobbin from which the yarn is unwound and the textile machine which processes it, comparing the measured tension with a predetermined desired tension and adjusting the tension of the yarn at a point between the bobbin and the point in which the tension is measured. The tension adjustment is interrupted when the measured tension is equal to the desired value. The device of the present invention includes sensing elements for sensing movement and measuring tension of the yarn and a comparison element for comparing the measured tension value with a desired tension and which is connected to the sensing element. The comparison element cooperates with an element for controlling the braking of the yarn so as to vary the tension of the yarn in the desired manner.
REFERENCES:
patent: 4666096 (1987-05-01), Heel et al.
patent: 4880175 (1989-11-01), Yamauchi et al.
patent: 5056734 (1991-10-01), Uchida et al.
patent: 5329822 (1994-07-01), Hartel et al.
Biegel Ronald
Chilcot Richard
International Trading S.R.L.
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