Tape measure

Details Tape measure Tape measure

G - Physics

01

B

33/155

G01B 3/10 (2006.01)

Patent

CA 1154588

TAPE MEASURE 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 attached to a cover. A cover plate coupled through an input disk allows revolving of the spring-retaining disk to adjust the tension of a spring which is retained within a spring-retaining well of the spring-retaining disk. Alterna- tively 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. In ordinary use, the cover plate is restricted from revolving by compression lock rings which sandwich the cover plate.

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