Simultaneous multiple twisting apparatus

Details Simultaneous multiple twisting apparatus Simultaneous multiple twisting apparatus

1979-04-24

1981-05-19

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Unitary multiple twist devices

57 5852, 57 5855, 57 5886, 57 80, D01H 110, D01H 128, D01H 786

Patent

active

RE0306142

ABSTRACT:
In each twisting unit of a multiple twisting apparatus, a two-for-one twisting assembly imparts a first twist to each component yarn while a ring twisting assembly imparts a second twist to [a] the doubled first-twisted yarns. A plurality of first twisted yarns are doubled under tension control and the doubled yarn is taken up by a feed mechanism so as to be supplied to the ring twisting assembly under tension control via a yarn passage formed behind the two-for-one twisting assemblies. The two-for-one twisting assemblies are arranged in two alignments along a lengthwise direction of the apparatus.
All driving members are driven synchronously at least at a starting period and at a time of stopping the twisting operation.

REFERENCES:
patent: Re24945 (1961-03-01), Vibber
patent: 2576936 (1951-12-01), Heffelfinger
patent: 2635413 (1953-04-01), Truitt
patent: 2654211 (1953-10-01), Uhlig
patent: 2979882 (1961-04-01), Bromley et al.
patent: 2989837 (1961-06-01), Vibber
patent: 3146572 (1964-09-01), Keyser
patent: 3192698 (1965-07-01), Vibber
Melliand Textilberichte, vol. 39, No. 4 & 5, 1958.

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