Yarn control and feeding apparatus
AssigneeAbram N. Spanel
InventorsAbram N. Spanel, David R. Jacobs, David N. Buell
Life of this patent
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Abstract
A yarn control and feeding apparatus for use with tufting machines and similar apparatus wherein yarn, normally precut, is tufted into a backing layer. A pulsing-type solenoid actuator is utilized to selectively control yarn metering and feeding functions carried out by a rotatable yarn feed wheel and to further control pneumatic yarn transport means including advancing and retracting yarn during various stages of the tufting cycle.
Claims24
Tufting apparatus including bit-applying means for applying tufts to a backing layer at a tufting station comprising:
- a metering means utilizing a controlled yarn feed means for advancing a yarn strand;
- means including pulsed control means for controlling the yarn feed means to feed a predetermined length of the yarn strand;
- and
- pneumatic yarn transporting means to advance the yarn strand to the tufting station.
Tufting apparatus including bit-applying means for applying tufts to a backing layer comprising:
- a metering means utilizing a controlled rotatable yarn feed means for advancing a yarn strand;
- means for controlling the rotatable yarn feed means to feed a predetermined length of the yarn strand;
- and
- pneumatic yarn transport means including valvable feed means and valvable pullback means.
A tufting machine comprising:
- a yarn source;
- a yarn metering and feeding means;
- a yarn pullback means which enables yarn previously fed to be returned to a standby position, said pullback means being pneumatically actuated;
- a pneumatic yarn transport means;
- control means for actuating said yarn metering and feeding means, said yarn pullback means, and said pneumatic transport means;
- yarn severing means;
- and
- tufting elements to tuft said severed yarn.
A tufting machine comprising:
- a yarn source;
- a yarn metering and feeding means;
- a yarn pullback means which enables yarn previously fed to be returned to a standby position;
- a pneumatic yarn transport means;
- pulsed control means for actuating said yarn metering and feeding means, said yarn pullback means, and said pneumatic transport means;
- yarn severing means;
- and
- tufting elements to tuft said severed yarn.
Dependencies are inferred from the claim text.