From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
To the Experimental Technical Department regarding the dimensional accuracy of two gauges for brass spinning.
| Identifier | ExFiles\Box 150\3\ scan0406 | |
| Date | 24th March 1938 | |
| 1280. horie Rn{Mr Robinson}/sxg Mr. Steadman. Experimental Technical Dept. Hy{Tom Haldenby - Plant Engineer}/EJB.9/MH.{M. Huckerby}24.3.38. Herewith two Gauges for EW.1664. Brass Spinning. One of them is correct. The other one is correct excepting that the root diameter is slightly minus. The effective diameter and crest diameter are O.K. I thought you might like to retain this one at our factory for checking purposes and send the one away that is correct in all diameters. Hy{Tom Haldenby - Plant Engineer}/EJB. I have marked the latter on the bottom of gauge. | ||