Tape locking device

Geometrical instruments – Area integrators – Electrical

Patent

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Details

242 848, G01B 310

Patent

active

044894945

ABSTRACT:
A retractable tape measure having a casing which contains a coiled tape rule whose free end extends through an opening in the casing and includes means for locking the tape against automatic retraction into the casing. The lock means consists of a locking member mounted in the casing for pivotal movement in a plane generally transverse to the direction of retraction of the tape, with a free end located to engage the tape and hold it against a portion of the casing in a first pivoted position of the lock member and to be spaced from the tape in a second pivoted position. A slide actuator operatively engaged through a cam arrangement is provided for pivoting the lock member between its first and second positions.

REFERENCES:
patent: 3435529 (1969-04-01), Quenot
patent: 3450367 (1969-06-01), Edgell
patent: 3812588 (1974-05-01), Bennett
patent: 3816925 (1974-06-01), Hogan et al.
patent: 4293058 (1981-10-01), Burton

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