An Improved Tool Feed Mechanism for Parting or Cutting off Machines.

摘要

100,566. Clifton & Baird, and Clifton, C. H. Feb. 14, 1916. Turning.-The tool-slides of the rotary toolhead of a cutting-off lathe are fed from an overrunning annulus E, Fig. 1, driven through a wheel e arranged to slip in the event of overload and fitted with an alarm. The rim h, Fig. 2, of the wheel e is frictionally mounted between disks i, j as adjusted by bolts and springs l. When slipping occurs, a spring n strikes a succession of teeth m. The disc i is keyed to a sleeve shiftable by a hand-lever c to engage a positive clutch d on the driving-shaft for feed, or a friction clutch on a wheel f driven through an idler from a wheel g on the spindle, for quick withdrawal.