Apparatus for measuring loom warp tension

Details Apparatus for measuring loom warp tension Apparatus for measuring loom warp tension

1990-02-26

1991-06-25

Falik, Andrew M.

Textiles: weaving

Warp manipulation

73159, D03D 4918, G01L 504

Patent

active

050258370

ABSTRACT:
The warp tension is measured in a weaving loom by measuring the fabric tension downstream of the beat-up point. For this purpose a measuring device is arranged in a suitable position downstream of the beat-up point. Such an arrangement is possible because the fabric tension in the take-up direction is directly proportional to the warp tension. The measuring device includes a measuring beam supported, for example, in the spreader bar or pipe. The measuring beam is in contact with the fabric and cooperates with sensor elements such as foil strain gages, pressure gages, or other suitable sensors or pick-ups such as displacement pick-ups. This type of arrangement has the advantage that the warp thread tension can be measured with high precision due to the mentioned proportionality and independently of temperature influences. Additionally, impairment of, or damage to the warp threads is avoided by measuring downstream of the beat-up point.

REFERENCES:
patent: 3850031 (1974-11-01), Schwenzfeier et al.
patent: 3878872 (1975-04-01), Hintsch
patent: 4572243 (1986-02-01), Feliz
patent: 4794802 (1989-01-01), Felix

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