A new or improved apparatus for truing the valves of internal combustion engines and for like operations

摘要

165,146. Cottrill, E., and Rhodes, R. Feb. 20, 1920. Portable turning-apparatus.-A valve-trueing device comprises a holder 2 having fixed bearing portions 3, 4 coacting with complementary bearing portions 5, 6 carried in adjustable stirrups 7, 8. The valve 13 is rotated by means of a screw driver &c. against a pivoted cutter 11 adjustable by means of a screw 12a, the cut being limited by an adjustable abutment 15.