Coilable rule with automatic recoil

Details Coilable rule with automatic recoil Coilable rule with automatic recoil

1978-06-15

1980-02-19

McCarthy, Edward J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

33138, B65H 7516, G01B 302

Patent

active

041891074

ABSTRACT:
A measuring tape is contained in a housing which includes an electric motor for rotating the spool on which the tape is wound to wind the tape up. A safety mechanism is provided to switch the motor off when the tape is fully wound, and a reduction mechanism is provided between the motor and the spool, so that the spool can rotate more slowly than the motor. The instrument is portable and has a handle with which an operating switch may be associated. The motor may be battery driven.

REFERENCES:
patent: 2268178 (1941-12-01), Boisture
patent: 3164526 (1965-01-01), Girard
patent: 3311319 (1967-03-01), Campbell
patent: 3347487 (1967-10-01), Seller
patent: 3473751 (1969-10-01), Quenot
patent: 3838518 (1974-10-01), Hendrickson

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