An improved variable pitch pulley

Abstract

Abstract 785,130. Expanding pulley gearing. SKINNER, Ltd., E. J., and THOMAS, A. P. L. April 30, 1956 [April 30, 1955], No. 12592/55. Class 80 (2). An expanding pulley, for use with a V-belt, comprises flanges 2a, 6a fast with inner and outer telescoping sleeves 2, 6, registering axial grooves 2c, 6b in the adjacent outer and inner surfaces after two sleeves containing balls 7 (or rollers) which connect the two flanges &c. The inner surface of the sleeve 2 has axial grooves 2b registering with axial grooves 1b on the outside of a shaft sleeve 1, balls &c. 3 lying in these grooves and a set-screw la securing the shaft sleeve to a shaft (not shown). The pulley flanges are biased towards each other by a compression spring 10.

Inventors

No inventors recorded.

Bibliographic Details