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Perfeccionamientos en máquinas ovilladoras, del tipo que comprenden un portaconos o similar arrastrado friccionalmente por un tambor giratorio provisto de una ranura helicoidal sinfin guiahilos, y un tambor tensor dispuesto interiormente a la ranura y con el que entra en contacto el hilo en su paso hacia el cono, caracterizados porque dicho tambor tensor tiene un perfil longitudinal tal que varía la tensión del hilo, a medida que éste lo recorre longitudinalmente, de manera inversa a como la hace el diámetro variable del cono en los puntos correspondientes de su longitud.
ES0245134A1958-11-061958-11-06Perfeccionamientos en maquinas ovilladoras
ExpiredES245134A1
(es)