Stub shaft

Details Stub shaft Stub shaft

1981-09-17

1983-12-27

Levy, Stuart S.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 72R, 279 2R, B23B 522, B23B 3140, B65H 7518

Patent

active

044225903

ABSTRACT:
A stub shaft comprising a hollow shaft having a pair of resilient rubber gripping rings mounted thereon. Each resilient gripping ring is mounted between a chuck and a pressure plate. Pressure bars hold the pressure plates in spaced but operative relationship to each other. One of the chucks is slidable on the shaft and a thrust cone is provided to apply pressure to the slidable chuck. This applies pressure to both resilient gripping rings to compress the rings and allow them to expand so as to grip the inner surface of a paper roll core.

REFERENCES:
patent: 1429556 (1922-09-01), Bartholdy
patent: 1716812 (1929-05-01), Ball
patent: 2564746 (1951-08-01), Bauer
patent: 2638282 (1953-05-01), Prevost
patent: 2733022 (1956-01-01), Grody
patent: 2746497 (1956-05-01), Thompson
patent: 3462092 (1969-08-01), Mullins
patent: 4154412 (1979-05-01), Briar et al.

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