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).
Experiment on battery ignition contact breaker tungsten points, by fitting a contact screw with a domed surface to specific chassis.
| Identifier | ExFiles\Box 61b\1\ scan0089 | |
| Date | 6th May 1930 | |
| X2894. RHCs from EFC. c. Hs{Lord Ernest Hives - Chair}/AJL. EFC9/ADL6.5.30. X.2894. BATTERY IGNITION CONTACT BREAKER TUNGSTEN POINTS. As an experiment on the maintenance of correct bedding of these points over a long period, we wish to have fitted to the contact breakers on chassis 12-GIV, 19-EX and 20-EX a contact screw with domed surface. We hand you three of these screws, which you have recently had ground, for this purpose. Will you please ensure that the contacts on the contact levers of the respective distributors are ground flat when these screws are fitted. EFC/HEW. Three screws herewith. | ||