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).
With diagrams discussing design improvements for a spring finger pivot and tungsten ignition points.
| Identifier | ExFiles\Box 35\6\ scan 241 | |
| Date | 28th January 1927 guessed | |
| (2) pivot? Would it be good to have damping friction on the Spring finger Say 1 lb. on fibre disc. Say ½" dia. top & bottom. Creating say 10% friction of return spring. Could we also reduce rebound and scrub tungsten (very hard points) clean by movement between the points - Difficult to know how to do this without up-setting the bedding. What is the practice of the magneto people? Have the Lucas people actually made their points last so long: if so, how? R.{Sir Henry Royce} | ||