Measuring bar for free abrasive machines

Details Measuring bar for free abrasive machines Measuring bar for free abrasive machines

1985-07-16

1987-09-15

Frankfort, Charles

Geometrical instruments

Gauge

Straightness, flatness, or alignment

33172R, 51165R, G01B 520

Patent

active

046930124

ABSTRACT:
A measuring bar for determining flatness and deviations therefrom comprises a rigid bar, and a plurality of support feet projecting from the bar. The support feet have free ends which occupy a common, flat plane, the free ends of each of the support feet defining a transverse supporting surface of essentially 0.005 to 0.025 inch across. Measuring devices are carried on the bar for measuring the spacing from the flat plane of at least one point on a target surface against which the support feet free ends rest, the measured point being spaced from the support feet.

REFERENCES:
patent: 1595417 (1926-08-01), Rayton
patent: 2729891 (1956-01-01), Winter
patent: 3161961 (1964-12-01), Lyna et al.
patent: 3762053 (1973-10-01), Day
patent: 3911586 (1975-10-01), Malonda

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