Geometrical instruments – Area integrators – Electrical
Patent
1977-11-01
1978-08-01
Haroian, Harry N.
Geometrical instruments
Area integrators
Electrical
33 1BB, 33 84, G01B 524
Patent
active
041034287
ABSTRACT:
A pipe joint alignment tool comprising a segment of a clear plastic cylinder which, when placed on the surfaces of opposing pipe joint flanges, allows the measurement of twist, parallelism, face to face dimension, and lateral displacement between the pipes at the joint by visual inspection of the position of the pipe flanges relative to lines scribed on the surface of the cylinder.
Beers R.
Haroian Harry N.
Sciascia R.
Sheinbein S.
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