| 摘要 |
A gage for locating the center of circular workpieces including a primary probe engageable with the periphery of a workpiece along a radial plane, a secondary probe spaced from the primary probe and swingable about a pivot axis coaxial with the engagement point of the primary probe, and a gage surface assuming a particular angular relation to the plane depending on the extent of the swinging movement of the secondary probe, the angular disposition of the gage surface being indicative of the distance between the periphery and the center of the workpiece.
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