Geometrical instruments – Area integrators – Electrical
Patent
1982-06-23
1984-07-17
Martin, Jr., William D.
Geometrical instruments
Area integrators
Electrical
33179, G01B 310
Patent
active
044597541
ABSTRACT:
A metal tape containing diameter graduations along the tape is wrapped around the groove in a sheave. The tape contains spaced apart supports which precisely position the tape at a certain depth in the groove. The intersection of the two ends of the tape indicate the diameter of the groove. The ends have vernier graduations.
REFERENCES:
patent: 3407507 (1968-10-01), Brubaker
patent: 4332087 (1982-06-01), Ellis
Cilderman Janis J.
Saxer Albert J.
Yasuda Kentaro
Greenstien Robert E.
Martin, Jr. William D.
Otis Elevator Company
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