Circumference gauge and recording method

Details Circumference gauge and recording method Circumference gauge and recording method

1975-04-17

1976-07-06

Aegerter, Richard E.

Geometrical instruments

Area integrators

Electrical

G01B 310, G01B 302

Patent

active

039673839

ABSTRACT:
A circumference-measuring gauge comprising a tape curved over an intermediate portion into a closed loop with its two end portions extending away from the loop in opposite directions, two mounting members one fixed relative to each end portion of the tape and mounted for relative movement towards and away from one another to increase or decrease the loop circumference, and means responsive to the distance apart of two datum points one fixed relative to each mounting member to indicate the size of the loop.

REFERENCES:
patent: 251575 (1881-12-01), Greenwood
patent: 530673 (1894-12-01), Allstadt
patent: 1282772 (1918-10-01), Dinhofer
patent: 1404601 (1922-01-01), Gordon
patent: 3271564 (1966-09-01), Rosenfeld et al.
patent: 3500547 (1970-03-01), Van Haagen
patent: 3550279 (1970-12-01), Fapiano
patent: 3744140 (1973-07-01), Kyrk

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