E.i. Dupont De Nemours and Company

Donald E Hallam

Peter Popper

Paul W Yngve

Harold F Staunton

Robert Edward Taylor

Richard J Angelucci

Andrew P Cope

Harry E Ladd

A process for making alternate S and Z twist plied yarn from individual singles yarns includes the steps of tensioning the singles yarns as they move in a path through the process, twisting the individual yarns in either an S or Z direction, stopping the forward movement of the yarn, then bonding the ply-twisted yarns at a node while applying twist, stopping the twisting operation, then repeating the procedure while twisting in the opposite direction.

Apparatus and process for forming alternate twist plied yarn and product

Apparatus and process for forming alternate twist plied yarn

A power-driven, wheeled vehicle which interacts semiautomatically with winders in a spinning area to doff completed yarn packages, automatically delivers the packages to an unload station to unload the packages from the vehicle and then moves to another winder to repeat the operation. The wheeled vehicle and the winders are located on opposite sides of a service aisle. A frame extendable and retractable across the aisle is mounted to the vehicle. The means for extending and retracting the frame includes two four-bar linkages coupled to the vehicle and the frame and to each other.

Textile doff servant

Growing community of inventors

Wilmington, DE, United States of America

Donald E Hallam