E.i. Dupont De Nemours and Company

Other

John J Turner

Robert L Adelman

Michael Joseph Piovoso

Mark David Wetzel

Scott Lester Davidson

Edward C Herkner

A method for monitoring the operation of a multiposition spinning machine wherein filaments are extruded from a spinning pack at each position and advanced as a yarn bundle in a path, then split at a location into a plurality of threadlines to be forwarded to a plurality of windups to be wound on packages and scheduling events at predetermined times in the preparation of said packages with the aid of a digital computer, the method relies on a program with a knowledge database that includes the operative state of each position, the elapsed time since the initiation of each package, predetermined event times unique to the filaments being wound, the positional configuration of said machine, a hueristic rule base. The operative state of each position is sensed by monitoring the presence or absence of the advancing yarn bundle and threadlines as a function of time and this information is provided to the computer which compares the operative state of each position and the elapsed time since initiation of each package and indicates that the time for performing said events has been reached.

Inferential time-optimized operation of a fiber producing spinning

Activated carbon fabric is made directly from aramid fabric in a single carbonization/activation step.

Manufacture of activated carbon fabric

Cross-linked polyvinyl alcohol coated polyester fiber is indigo-dyeable and exhibits wash-down and crocking resistance characteristics similar to indigo-dyed cotton fibers.

Process for preparing indigo-dyeable polyester fibers

Indigo-dyeable polyester fibers

Pigmented coating of polyester/cotton spun yarns

The mandrel produces curved articles, such as fishing lures, from rod or tubing which have a sloping leading side and a rectilinear, substantially L-shaped side opposite. The mandrel is provided with a suitable, controlled reciprocating turning means which comprises a base and die assembly, a bending assembly, a die hold-down assembly and tensioning means provided between the hold-down assembly and the base and die assembly.

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Wilmington, DE, United States of America

John J Turner