Weft picking system of loom and method for operating same

Details Weft picking system of loom and method for operating same Weft picking system of loom and method for operating same

1984-06-11

1985-11-05

Jaudon, Henry S.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

242 4701, D03D 4736

Patent

active

045507546

ABSTRACT:
A weft picking system of a loom comprises a weft winding-guide arm which wounds a weft yarn around a stationary drum in order to measure a weft length to be required for one pick of the weft yarn. The weft winding-guide arm is driven by a pulse motor whose revolution speed is slowly decreased from a predetermined level toward a stoppage of revolution of the pulse motor so as to measure a predetermined part of a required weft length, while is slowly increased into the predetermined level since the initiation of the pulse motor revolution so as to measure a remainder part of the required weft length, thereby effectively preventing the weft yarn from being cut.

REFERENCES:
patent: 3737112 (1973-06-01), Tellerman
patent: 4092006 (1978-05-01), Jacobsson
patent: 4226379 (1980-10-01), Brouwer
patent: 4298172 (1981-11-01), Hellstrom
patent: 4368854 (1983-01-01), Valois
patent: 4397340 (1983-08-01), Umezawa
patent: 4452402 (1984-06-01), Ghiardo

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