Circumference measuring device

Details Circumference measuring device Circumference measuring device

1984-10-12

1986-02-11

Little, Willis

Geometrical instruments

Area integrators

Electrical

G01B 310

Patent

active

045691398

ABSTRACT:
A circumference measuring device comprising a flexible tape arranged to form a loop of adjustable size; indicating means comprising a scale and a reference mark movable with respect to one another, one end of the said tape being attached to the indicating means such that the indicating means measures the size of the loop; and zeroing means to preset the reference mark at a predetermined position with respect to the scale.

REFERENCES:
patent: 1448222 (1923-03-01), Johnston et al.
patent: 1978682 (1934-10-01), Marvin
patent: 2129582 (1938-09-01), Johansson
patent: 3639995 (1972-02-01), Gardner
patent: 3744140 (1973-07-01), Kyrk

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