EUGENE CONNELLY
Real Estate Commission in Pittsburgh, PA
License number
Pennsylvania RS028394A
Category
Real Estate Commission
Type
Real Estate Salesperson-Standard
Address
Address
Pittsburgh, PA 15205
Professional information
Device For Measuring Out-Of-Roundness
US Patent:
5113591, May 19, 1992
Filed:
Mar 20, 1991
Appl. No.:
7/672683
Inventors:
Eugene B. Connelly - Pittsburgh PA
Assignee:
Crucible Materials Corporation - Syracuse NY
International Classification:
G01B 1130
US Classification:
33550
Abstract:
An apparatus for measuring the out-of-roundness of a cylindrical workpiece. The apparatus provides a plurality of parallel light beams in a direction perpendicular to a plane of the longitudinal axis of the cylindrical workpiece. The workpiece intersects a first portion of the light beams. A second portion of the light beams is obstructed. A third portion of the light beams passes between the cylindrical workpiece and the structure obstructing the second portion. A fourth portion of the light beams passes beyond a surface of the cylindrical workpiece opposite the surface in spaced apart relation with respect to the obstruction structure. The cylindrical workpiece is rotated about the longitudinal axis thereof. An electrical signal is provided representing a dimension of the first portion of the light beams intersected by the cylindrical object during rotation thereof. A second electrical signal is provided representing a dimension of the third portion of the light beams passing between the cylindrical object and the obstructing structure.