Angle-measuring instrument having an indicator for the degree of

Details Angle-measuring instrument having an indicator for the degree of Angle-measuring instrument having an indicator for the degree of

1983-07-01

1985-04-30

Stearns, Richard R.

Geometrical instruments

Straightedge type

Plural straightedges, relatively moveable

33 1N, 33495, G01B 356

Patent

active

045135126

ABSTRACT:
An angle-measuring instrument which includes two arms, which are interconnected in such a way that they can be pivoted about a common shaft, and an indicator for the angle of spread of the two arms. The shaft is rigidly connected with one of the arms, and drives the drive gear of a transmission gearing which is arranged in the at least partially hollow second arm. As a function of the angular position of the two arms relative to one another, the transmission gearing moves the indicator, which is also disposed in the hollow second arm, and in the indicating region of which a viewing window is arranged in the hollow second arm.

REFERENCES:
patent: 715897 (1902-12-01), Streed
patent: 1060466 (1913-04-01), Leloup
patent: 1500427 (1924-07-01), Valkenburgh
patent: 1669258 (1928-05-01), Luoma
patent: 2735185 (1956-02-01), Naphtal
patent: 4442606 (1984-04-01), Graham et al.

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