Improvements in Polishing Machines.


6974. Stone, H., Atkinson, H. G., and Doak, R. D. March 26. Polishing.-In a machine for polishing tubes, rods, &c., the work 19, Fig. 1, is placed in bolsters 18 held in the jaws 17 of a carriage 11 adjusted in the support 9 by a screw &c. 12. The tube &c. is rotated and advanced axially during the polishing. In the modification shown in Fig. 4, the bolsters 18<a> can be moved vertically in the support 11<c> by means of a lever 25, and the support 11<c> can be moved laterally on the carriage 11<a> by a lever 22.




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