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).
Alternative design for Goshawk 11 cylinder studs to prevent them from coming loose.
| Identifier | WestWitteringFiles\I\October1922\ Scan31 | |
| Date | 26th October 1932 | |
| TO HY.{Tom Haldenby - Plant Engineer} FROM E.{Mr Elliott - Chief Engineer} c. to GJ. WGR. c. to DH.{D. Henderson - Showroom} HS.{Lord Ernest Hives - Chair} GOSHAWK 11. CYLINDER STUDS. X4225 Regarding the trouble in connection with Goshawk 11. cylinder studs coming loose by shearing the split pins on the back nuts, we send you herewith drawing No.Lec/1647 shewing an alternative device. In this scheme the end of the stud is grooved and stamped sheet metal washers are used to anchor double lock nuts on to the stud end. Mr. Royce would like you to try this as he thinks it most important to make a good job of the cylinder stud. This drawing further shows a sketch of a jig for jumping up studs so that they may have a solid instead of a brazed on collar. It should be a simple matter to heat up the studs locally, pop them into the jig, and jump them up by means of the hand lever and eccentric. Mr. Royce does not like the brazed on collar as he is afraid that the brazing operation interferes with the condition of the steel, and he would like you to consider and report whether it is not possible to use jumped up studs. E.{Mr Elliott - Chief Engineer} | ||