Yarn forwarding and drawing apparatus

Details Yarn forwarding and drawing apparatus Yarn forwarding and drawing apparatus

1980-07-11

1982-08-31

Mackey, Robert

Textiles: manufacturing

Thread finishing

Surface modification of running length

19299, 156167, 2642905, 264555, 425 66, D01D 512, D02J 122

Patent

active

043465048

ABSTRACT:
An improved fluid operated forwarding and drawing apparatus for continuous filamentary materials including a jet nozzle structure defined by a fluid outlet port from a fluid plenum chamber and a filament guide tube where the nozzle has a converging acceleration zone, a throat, a diverging expansion zone and a converging transition zone. A small diameter friction tube abuts an exit to the transition zone. The device is adjustable during set up and operation whereby close manufacturing tolerances are not required and operating parameters of the nozzle may be easily varied. The device is operable at low air pressures, low air consumption and low noise levels while handling filamentary materials at high linear velocities. A process for drawing and forwarding filamentary materials is also disclosed.

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