Valve seat concentricity gage

Details Valve seat concentricity gage Valve seat concentricity gage

1976-05-11

1977-07-12

Haroian, Harry N.

Geometrical instruments

Area integrators

Electrical

33174Q, 33DIG2, G01B 524, G01B 1319

Patent

active

040344789

ABSTRACT:
A gage for measuring concentricity between a bore and a countersunk valve seat, said gage having a stem for insertion into the bore and a partially-spherical surface (24) on a spindle member for engaging the valve seat. The spindle member is rotated through 180.degree. to obtain the measurement, while a pair of gaging circuits indicate respective clearances between an upper extension of the stem and the spindle member at the theoretical center of the partially-spherical surface.

REFERENCES:
patent: 2557840 (1951-06-01), Preslan
patent: 2831263 (1958-04-01), Mahlmeister

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