Instruction on standardising iridio-platinum contact points and increasing condenser capacity to reduce sparking.
| Identifier | ExFiles\Box 34\1\ Scan274 | |
| Date | 29th September 1921 | |
| X 2572 To EFC. {E. Fowler Clarke - Electrical Engineer} from R. {Sir Henry Royce} c. to CJ. c. to Wor. {Arthur Wormald - General Works Manager} c. to EP. {G. Eric Platford - Chief Quality Engineer} c. to Hs. {Lord Ernest Hives - Chair} c. to PN. {Mr Northey} R2/G29.9.21. X.3656 RE IRIDIO-PLATINUM CONTACT POINTS WITH A MUCH X.2512. SMALLER AMOUNT OF PLATINUM THAN STANDARD. With reference to your EFC {E. Fowler Clarke - Electrical Engineer} 4/T14.9.21. I always intended that iridio-platinum should be used. Will you please get out standardisation sheets for these welded points to be used in future, and also increase the capacity of the condensers so that the sparking shall be reduced. This was also an old instruction from me to the coil making department. R. {Sir Henry Royce} | ||
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).