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).
Design notes with sketches discussing damping friction on a pivot and the longevity of magneto contact points.
| Identifier | WestWitteringFiles\Q\January1927-March1927\ 61 | |
| Date | 28th January 1927 guessed | |
| (2) Would it be good to have damping friction on the pivot? Spring finger Say 1 lb. on fibre disc. Say 1/2" 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 - X8793 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} | ||