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).
The failure of Tungsten steel contact points for battery ignition after testing on a demonstration car.
| Identifier | ExFiles\Box 35\6\ scan 032 | |
| Date | 24th March 1921 | |
| X.2894. EFC. from EP.{G. Eric Platford - Chief Quality Engineer} EP{G. Eric Platford - Chief Quality Engineer}7/F24.3.21. A.T. X.2894 - TUNGSTEN CONTACTS FOR BATTERY IGNITION MAKE AND BREAK. Further to our EP{G. Eric Platford - Chief Quality Engineer}16/F24.2.21, we are now returning to you herewith the Tungsten steel points (Z) which were supplied to us from the Fan Steel Products Co. of U.S.A. These contacts have now failed and are badly burnt, as you will note from the condition of those sent to you, and according to Mr.Clarke of the Demonstration Class, have run on their demonstration car for 6074 miles. [STAMP: RECEIVED MAR 24 1921] [Handwritten:] Hs{Lord Ernest Hives - Chair} Fellowpair EP.{G. Eric Platford - Chief Quality Engineer} AA{D. Abbot-Anderson} Handed to Mr Hall for test. | ||