Expansible mandrel for mounting spools and the like in winding m

Details Expansible mandrel for mounting spools and the like in winding m Expansible mandrel for mounting spools and the like in winding m

1976-10-04

1978-01-10

McCarthy, Edward J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

B65H 7518

Patent

active

040675114

ABSTRACT:
An expansible mandrel is useful for mounting spools and the like in winding machines. The mandrel comprises asecuring elements for locating clamping segments on the periphery of the mandrel. Mutually opposed conical surfaces are movably disposed with respect to each other for causing the clamping elements to exert an outwardly directed radial pressure thereby holding a mounted spool thereon. Each clamping segment is elongated and has a longitudinal axis disposed parallel to the longitudinal axis of the mandrel. A plurality of recesses are distributed symmetrically with respect to the longitudinal center of each segment. The recesses are bores in a specific embodiment of the invention. The clamping segments are also substantially constant in width along the entire length thereof.

REFERENCES:
patent: 1281861 (1918-10-01), Sibley
patent: 2909338 (1959-10-01), Cozzo
Technical Digest No. 14, Apr. 1969, "Quick Acting Expandable Arbor".

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