Combined primary and secondary sine bars

Details Combined primary and secondary sine bars Combined primary and secondary sine bars

1986-08-04

1987-07-14

Stearns, Richard R.

Geometrical instruments

Gauge

Angle

G01B 356

Patent

active

046793291

ABSTRACT:
A primary and secondary sine-bar combination wherein one sine-bar has opposite end plugs shared with the other sine-bar, for compound determination of sine-bar angularity in degrees, minutes and seconds, using gage-blocks and/or micrometer adjustment within plus or minus one degree for height resolution in minutes and seconds.

REFERENCES:
patent: 2533890 (1950-12-01), King
patent: 2567517 (1951-09-01), Keebler
patent: 2609612 (1952-09-01), Mull
patent: 3862498 (1975-01-01), Klucznik
patent: 4238888 (1980-12-01), Goldsmith
patent: 4389785 (1983-01-01), Goldsmith et al.

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