The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 1978
Filed:
Oct. 28, 1976
Mario Possati, Bologna, IT;
Abstract
An apparatus for measuring the taper and the out-of-roundness of a revolutionary surface of a workpiece, comprising a frame, at least two measuring devices carried by the frame which have moving feelers adapted to cooperate with two points of different cross-sections of the revolutionary surface and two measurement transducers adapted to provide signals responsive to the position of the feelers, and detecting and processing means connected to the transducers for providing the desired measurements. The measuring devices comprise a common support for the feelers; coupling means, arranged between the support and the frame for permitting displacements of the support with the feelers for carrying out the measurements. The coupling means include a first movable connection permitting displacements of the support substantially along a radial direction relative to the workpiece and a second movable connection permitting angular displacements of the support substantially in a longitudinal axial plane relative to the workpiece, and thrust means for applying a radial thrust to the support, in a radial direction towards the surface. The transducers are coupled to the support and the coupling means to provide a first signal responsive to the displacements occurring substantially in a radial direction and a second signal responsive to the angular displacements.