Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1985-08-05
1988-03-15
Jillions, John M.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
33138, 2421073, 2421075, B65H 7548, G01B 310
Patent
active
047307838
ABSTRACT:
A gearless, open-faced, direct-drive, spring-rewound tape measure eliminates the need for a manual-rewind handle or gears to increase the spring tensioning force. A spiral spring is retained within a spring-retaining disk which is revolvable about a hub. The hub may be attached to the cover plate and the spring tension adjusted by revolving the cover plate while the spring-retaining disk remains stationary. Alternatively, the cover plate may be coupled through an input disk to revolve the spring-retaining disk and to adjust the tension of a spring which is retained within a spring-retaining well of the spring-retaining disk. In ordinary use, the cover plate is restricted from revolving by compression lock rings which sandwich the cover plate. The tape measure may include a brake to allow holding the tape in an unwound condition.
REFERENCES:
patent: 2172043 (1939-09-01), Wolf
patent: 2997250 (1961-08-01), Collins
patent: 3054573 (1962-09-01), Spencer
patent: 3150843 (1964-09-01), Cordoba et al.
patent: 3450367 (1969-06-01), Edgell
patent: 3547371 (1970-12-01), Gruseck
patent: 3657491 (1972-04-01), Ryder et al.
patent: 3812588 (1974-05-01), Bennett
patent: 4068383 (1978-01-01), Krebs
patent: 4293058 (1981-10-01), Burton
Jillions John M.
Spencer Products Company
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