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).
Testing and potential use of Lodge X601 sparking plugs.
| Identifier | ExFiles\Box 162\6\ img005 | |
| Date | 1st October 1921 | |
| X4425 To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. Hs{Lord Ernest Hives - Chair}5/LG6.10.21. LODGE SPARKING PLUG. X601 We are sending to you a sample of the latest Lodge Sparking Plug which they have submitted to us. We have had a dozen of these running on an experimental car and on the Test Engine. The results we have obtained from them so far, are excellent. The only criticism we have against them is that they should be detachable. The Lodge Co. are making us up a set of these plugs in which the insulator is detachable. If the Lodge people can supply us with a the right plug at the right price we prefer to deal with them than any other plug maker we have had experience with. Hs.{Lord Ernest Hives - Chair} R.R. 235a 100 (T) (S.H. 798, 10-12-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 3948 | ||