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).
List of questions for Mr. Royce regarding issues with the battery ignition system.
| Identifier | ExFiles\Box 35\6\ scan 030 | |
| Date | 3rd March 1921 | |
| X.2894 EFC/T3.3.21. X.3199 - BATTERY IGNITION - GENERAL. Questions re battery ignition to which Mr. Royce requires answers. 1. Why do we have pre-ignitions due to mutual induction on the R.R. non-trembler battery ignition and not on the Delco ignitions as fitted on the Packard, Buick and Essex Cars ? Ref: Nos. X.3129 - R.R. Chassis Non-trembler Battery Ignition. X.4284 - Delco Ignition. X.3714.- Non-metallic tube for High Tension Wire. X.4252.- Packard Car. X.4317 - Buick " X.4217 - Essex " 2. Why do Tungsten contact points fail on the R.R. Non-trembler Battery Ignition and not on the Delco Ignition ? Ref Nos. X.2894.- Tungsten Points. X.4284.- Delco Ignition. 3. Does ventilation of the distributor enable brass to be used satisfactorily for distributor sparking points ? Ref. Nos. X.3309 - Distributor Sparking Points. X.800 - Distributor. 4. Why can the U.S.A. Bosch battery ignition be made so cheaply ? Is there any technical reason why it should be less expensive ? Ref. No. X.4275 - U.S.A. Bosch battery ignition. Note. The Le Carbone and Morganite people should be consulted for the best carbon material suitable for carbon distributor brush. Ref. No. X.800 - Distributor. | ||