Rule or measuring rod

Details Rule or measuring rod Rule or measuring rod

1980-08-01

1982-06-29

Haroian, Harry N.

Geometrical instruments

Area integrators

Electrical

G01B 308

Patent

active

043366554

ABSTRACT:
The present invention is in respect of a rule or measuring rod, also referred to occasionally as a measuring stick, and in particular in respect of the type of rule which comprises a number of telescopic components so arranged as to slide in relation to each other. The components may be clamped together in pairs by means of a locking device, and each component is in the form of a rail of U-shaped or essentially U-shaped section. The extremities of the legs of the section are in the form of projections which face each other; the individual components themselves are of identical section, but are of different sizes so that the components are able to slide inside each other.

REFERENCES:
patent: 1670509 (1928-05-01), Jung
patent: 3492737 (1970-02-01), Swanson
patent: 3562773 (1971-02-01), Wilamowski

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