| 摘要 |
A device for mounting a workpiece on a lapping machine comprises a support 20 secured to a fixed part of the machine, first 22 and second 27 pivotal arms and first 24 and second 30 wheels for engagement with the rotating abrading disc of the machine and the workpiece or workpiece holder 15 or carrier respectively. The wheels 24, 30 are connected by drive belts 33, 34 and compound pulley 32 so that the workpiece is rotated at a constant relative speed to that of the abrading disc. <IMAGE>
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