Lathe apparatus

摘要

A lathe arrangement to turn down or grind worn tread surfaces of railroad wheels to a prescribed profile, the lathe arrangement including a wheel securing apparatus. The wheel securing apparatus comprises a plurality of driver arms pivotally supported on a rotatable face plate. Means are provided to move the driver arms radially so that they may engage the front face of the rim of any diameter railroad wheel. The means to move the driver arms includes a movable mechanical linkage connected to each driver arm to permit their synchronous radial movement.