Distance measuring instrument

Details Distance measuring instrument Distance measuring instrument

1979-07-02

1981-05-05

Stearns, Richard R.

Geometrical instruments

Area integrators

Electrical

33143M, G01B 320

Patent

active

042650216

ABSTRACT:
A distance measuring instrument having a pair of identical, substantially planar, juxtaposed measuring members wherein each measuring member includes an elongated base and a distance measuring scale or indicator located on the base. An arm projects from an end of each base, and each arm defines a first measuring surface for making "outside" measurements and a second measuring surface for making "inside" measurements. A spring or other elastic member is attached to and extends between each arm for urging the first measuring surfaces toward each other. A handle may also project from the base of each measuring member for enabling the user to operate the instrument with one hand, leaving the other hand free to hold the object being measured.

REFERENCES:
patent: 563089 (1896-06-01), Strange
patent: 874197 (1907-12-01), Heym
patent: 1238045 (1917-08-01), Nelson
patent: 1356214 (1920-10-01), Metzger
patent: 1414847 (1922-05-01), Wells
patent: 3142121 (1964-07-01), Stefanov
patent: 3190006 (1965-06-01), Madeira
patent: 3231978 (1966-02-01), Sanders
patent: 4008523 (1977-02-01), von Voros

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