Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1979-07-30
1981-06-02
McCarthy, Edward J.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
B65H 1904
Patent
active
042707072
ABSTRACT:
A system for driving a plurality of typewriter ribbon cores (80) having irregular apertures therethrough (150) includes a shaft (70) supported for rotation and a plurality of spacers (74) keyed to the shaft for rotation therewith. A plurality of adapters (72) are separated by the spacers and have a bore (170) therethrough for mating engagement on the shaft. The outer surface of the adapter corresponds to the irregular aperture through the ribbon core for receiving the core thereon. An inwardly directing force is applied on the outermost spacer such that the adapters and cores mounted thereon are engaged between adjacent spacers. This engagement force between the spacers and adapters imparts a constant rotational torque to the adapters and cores as the shaft spacers are rotated. Typewriter ribbon (R) is attached to each of the cores and is wound onto the core as the core is rotated with the shaft. Because the adapter and cores are not keyed to the shaft, they are free to rotate relative to the shaft when tension on the ribbon (R) produces a resistance torque greater than a predetermined limit.
REFERENCES:
patent: 2431130 (1947-11-01), Lychansky
patent: 2798677 (1957-07-01), Nicholson
patent: 3322359 (1967-05-01), Dales
patent: 3702687 (1972-11-01), Hall
Liquid Paper Corporation
McCarthy Edward J.
LandOfFree
Typewriter ribbon spool core shaft adapter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Typewriter ribbon spool core shaft adapter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Typewriter ribbon spool core shaft adapter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1861756