Abstract: There is provided an improved heating apparatus of the multiple condensing-vapor substantially air-free type used for uniformly heating moving threadlines of yarn up to 350.degree. C. and which includes a pressurized boiler containing a vaporizable liquid, means for heating the liquid in the boiler to generate hot vapor, means for distributing the hot vapor to the inside of multiple plates where the vapor condenses and thereby heats threadlines of yarn separately moved in frictional contact witn an outer yarn-contacting surface of each hot plate, and possibly means for returning the condensate to the boiler, wherein the improvement comprises having a coating on the inside surface of each said hot plate, said coating having a contact angle with said vaporizable liquid of at least 90.degree..

Abstract: There is provided an improved heating apparatus of the multiple condensing-vapor substantially air-free type used for uniformly heating moving threadlines of yarn up to 350.degree. C. and which includes a pressurized boiler containing a vaporizable liquid, means for heating the liquid in the boiler to generate hot vapor, means for distributing the hot vapor to the inside of multiple plates where the vapor condenses and thereby heats threadlines of yarn separately moved in frictional contact with an outer yarn-contacting surface of each hot plate, and possibly means for returning the condensate to the boiler, wherein the improvement comprises having a coating on the inside surface of each said hot plate, said coating having a contact angle with said vaporizable liquid of at least 90.degree..

Abstract: An improved apparatus for winding yarn or thread onto a bobbin to form a yarn package is described which comprises a support assembly for maintaining uniform pressure between the drive roll and yarn package during winding so that a yarn package having greater uniformity is produced. The described apparatus further includes an improved take-up roll having a braking means cooperating with a yarn package or bobbin release means, whereby the yarn package cannot be released from the take-up roll until the take-up roll has ceased rotation. Also described is a doffing mechanism associated with the winder for doffing yarn packages from the take-up roll after they are released by the package release means.

Abstract: An improved apparatus for winding yarn or thread onto a bobbin to form a yarn package is described which comprises a support assembly for maintaining uniform pressure between the drive roll and yarn package during winding so that a yarn package having greater uniformity is produced. The described apparatus further includes an improved take-up roll having a braking means cooperating with a yarn package or bobbin release means, whereby the yarn package cannot be released from the take-up roll until the take-up roll has ceased rotation. Also described is a doffing mechanism associated with the winder for doffing yarn packages from the take-up roll after they are released by the package release means.

Abstract: An improved apparatus for winding yarn or thread onto a bobbin to form a yarn package is described which comprises a support assembly for maintaining uniform pressure between the drive roll and yarn package during winding so that a yarn package having greater uniformity is produced. The described apparatus further includes an improved take-up roll having a braking means cooperating with a yarn package or bobbin release means, whereby the yarn package cannot be released from the take-up roll until the take-up roll has ceased rotation. Also described is a doffing mechanism associated with the winder for doffing yarn packages from the take-up roll after they are released by the package release means.

Abstract: An apparatus is described for forming transfer tails of yarn onto a pair of axially aligned bobbins preparatory to winding of the main bodies of yarn onto said bobbins from a pair of remote supply sources.