Calibration instrument

Details Calibration instrument Calibration instrument

1977-03-28

1978-03-14

Swisher, S. Clement

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

33174A, 356243, G01B 520, G01C 2500

Patent

active

040784185

ABSTRACT:
An all-in-one instrument for use in checking and calibrating a multiplicity of different tools and measuring devices of the type commonly employed in the lens manufacturing industry. Due to the design of the device, the single instrument can be used for precisely checking, cross-checking and calibrating numerous devices including lens clocks, lens meters, surfacing laps and calipers.

REFERENCES:
patent: 447276 (1891-02-01), Brayton
patent: 2862178 (1958-11-01), Moore

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