Textiles: spinning – twisting – and twining – Apparatus and processes – Covering or wrapping
Patent
1979-03-08
1980-10-07
Petrakes, John
Textiles: spinning, twisting, and twining
Apparatus and processes
Covering or wrapping
57352, 57354, D02G 336, D01H 718, D01H 1100
Patent
active
042260779
ABSTRACT:
Method and apparatus for producing high quality wrapped yarn by a wrapping operation wherein a binder strand, carried by a supply package supported by a rotatably driven hollow spindle, is fed to the free end of the hollow supply spindle and wrapped around a core strand moving through the hollow spindle. The binder strand inherently balloons outwardly in its path of travel from its rotating supply package to the core strand being wrapped. The zone in which the binder strand balloons is enclosed to isolate it from the ambient air about the wrapping apparatus to thereby substantially preclude pick up of fiber waste on the binder strand. Suction means communicates with the hollow spindle to attract the core yarn and facilitate passage of the wrapped yarn therethrough. Isolation of the zone in which the binder strand balloons is obtained by enveloping the package and balloon-forming region of the binder strand with an enclosure. The top of the enclosure is provided with an aperture to permit the delivery of core strand through the enclosure to the hollow spindle. Preferably, the inside margins around the enclosure aperture are designed to define with the adjacent end face of the hollow spindle an annular radially extending passageway for passage of the binder yarn, and means are provided to adjust the spacing between the hollow spindle end face and the aperture margins to optimize the exclusion of fiber waste from the ballooning zone.
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patent: 3927515 (1975-12-01), Northup et al.
patent: 4018042 (1977-04-01), Maag et al.
patent: 4028874 (1977-06-01), Maag et al.
Leesona Corporation
Norton Burnett W.
Petrakes John
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