Sonoco Products Company

McCleery B Cunningham

Manson Drew Case

Tony F Rummage

John T Wise

Charles D Foehrenbach

Clement D LeHardy

A concrete column forming tube is provided for receiving poured concrete therein to produce a concrete column and which is characterized by producing surface characteristics on the concrete column including a matte finish without seam lines of the forming tube. A flexible cylindrical liner is positioned in a generally friction-fit relationship within an elongate rigid cylindrical tube constructed of partially-overlapped spirally-wound plies of paper adhered together and defining an inside wall surface having spiral seam lines thereon. The flexible liner is constructed of a paperboard layer secured at butted edges and having an inside wall surface of desired paper fiber matte texture and a thickness sufficient to bridge and cover the spiral seam lines on the inside wall surface of the rigid tube to prevent the formation of seam lines on the outside surface of the produced concrete column. A thin plastic coating layer is laminated to the inside wall surface of the paperboard layer and has a thickness sufficiently thinner than the paperboard layer so that the plastic coating layer assumes the desired paper fiber matte texture of the inside wall surface of the paperboard layer to produce a concrete column with a matte finish on the outside surface.

Concrete column forming tube

A system and method of providing electrostatic pick-up of yarn on a rotating carrier tube or the like involving provision and use of an electrostatic generator for the application of a static charge to the leading section of the yarn which is subsequently directed across a spindle mounted rotating carrier in a manner whereby the yarn is adhered to or picked up on the tube by electrostatic attraction, the continuous high speed rotation of the carrier effecting a quick positive achievement of multiple wraps of yarn about the carrier.

Electrostatic yarn pick-up

A tube usable on an automatic yarn tube winding machine of the type requiring a space between tubes on the winding spindle and between the tubes and the spindle shoulder for permitting yarn being wound on the tube to contact knives on the spindle for a severing of the yarn during transfer of the yarn from one tube to another. The tube is provided with a slant cut base end which engages either the base shoulder or the flat cut nose end of an adjoining tube to define a gap for the accommodation of the yarn therebetween.

Yarn tube with slant cut end

A high speed yarn carrier or tube comprising a plurality of spirally wound plies of paper and incorporating, beneath the very thin overlapped outer surface defining ply, a strong underply provided with opposed deckle edges overlapped to a width no greater than that of the individual deckel edges. The deckle edge overlap is preferably less than a full overlapping whereby a small sink or depression is formed at the overlap.

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Hartsville, SC, United States of America

McCleery B Cunningham