| 摘要 |
A collet actuating mechanism for a longitudinally slidable collet tube for a lathe in which toggles are actuated by a slidable sleeve, the toggles acting against a pair of rings separated by a cam which is controlled through a lost motion connection from the actuating sleeve, movement of the cam taking up slack in the mechanism so that the same gripping force is applied to workpieces of varying diameters.
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