| 摘要 |
A contour grinding apparatus including an endless belt grinding member trained about a drive roller and an expansible cylindrical guide, the latter of which directs the grinding member past a work station, together with a device for sensing the thickness of the grinding member to detect wear, and a device responsive to the sensing device for expanding the guide to compensate for wear of the grinding member and thereby maintain a constant radius of the work contacting surface of the grinding member at the grinding station. In one form of the invention, the guide is a rotatable contact roller, and in another form the guide is a stationary cylindrical platen.
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