| 摘要 |
532,163. Dividing-engines. GHAYE, A. L. J. July 24, 1939, No. 15761/40. Divided out of 531,978. [Class 97 (iii)] [Also in Group XXII] In indexing heads of the type described in Specifications 531,978 and 532,023, to increase the range of divisions possible some of the rollers or balls are replaced by one or more slip gauges such as 5. The gauges are bevelled to leave a ridge 5c that is engaged by the clamping ring 4. The sides of the gauges are flat and parallel and the back is concave to fit the bottom of the groove 3. |
