STRAND TENSION CONTROL

The tension in advancing strand materials is controlled by an apparatus in which the restraint imposed upon a strand engaging a pulley or cylinder is controllably varied by changes in the flux density of an electromagnetic field. Cooperating poles which direct the flux of the field are movable into...

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Bibliographische Detailangaben
1. Verfasser:	WHITE E,US
Format:	Patent
Sprache:	eng
Schlagworte:	CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE PACKING PERFORMING OPERATIONS PHYSICS STORING TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	The tension in advancing strand materials is controlled by an apparatus in which the restraint imposed upon a strand engaging a pulley or cylinder is controllably varied by changes in the flux density of an electromagnetic field. Cooperating poles which direct the flux of the field are movable into and out of axial alignment and movable toward one another and apart, to facilitate accurate control over the flux density. The tension control apparatus is particularly applicable to textile yarn processing apparatus such as false twist texturing apparatus and to winding apparatus in which strand material is supplied from a creel.