Sensor for controlling the supply of weft yarn or the like

Details Sensor for controlling the supply of weft yarn or the like Sensor for controlling the supply of weft yarn or the like

1983-12-12

1985-12-17

Kee Chi, James

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

1393702, 242 4701, D03D 4734, D03D 5134

Patent

active

045587230

ABSTRACT:
A sensor which measures the amount of thread (weft yarn) drawn off a temporary storage drum and fed to a device which picks same into a shed of warp yarns, utilizes the spiralling motion of the thread as it is drawn axially off the drum, to induce the thread to move around in close proximity of the periphery of a guide aperture once for each loop of thread drawn off the drum and cut or reflect a light beam produced at or near the periphery of the aperture.

REFERENCES:
patent: 4228828 (1980-10-01), Loepfe et al.
patent: 4381803 (1983-05-01), Weidmann et al.
patent: 4407336 (1983-10-01), Steiner
patent: 4471817 (1984-09-01), Brouwer et al.
Brochure of Skan-A-Matic Corp.-Skan-Coax Fiber Optic Skanner S322-3 Series-pp. 12 and 13.

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