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).
On the U.S.A. Bosch battery ignition, detailing its components and supply terms from Bosch and Delco.
| Identifier | ExFiles\Box 61b\4\ scan0013 | |
| Date | 24th February 1921 | |
| R.R. 886a (100 T) S.H. 798. 10-12-20. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2947 X.4275 & E To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. c. to Da.{Bernard Day - Chassis Design} c. to EWT. for R.{Sir Henry Royce} R.{Sir Henry Royce} Inc. Hs{Lord Ernest Hives - Chair}7/LG24.2.21. X.4275 - U.S.A. BOSCH BATTERY IGNITION. X. 4284. X. 2894. R11/G16.2.21. The points on the contact breaker are tungsten. They claim very remarkable wearing qualitiesfor the material used on the contact breaker arm. The vent for the jump spark distributor is obtained by hollow rivets which hold the clips which fasten the cover of the H.T. distributor. The price quoted by the Bosch in their standard selling price. I understood from Mr. Olley that the Delco people will only supply their electrical units on conditions that they do the complete electrical installation on a Car. Hs.{Lord Ernest Hives - Chair} | ||