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).
Inquiry to A.C. Sparking Plug Co., Ltd. about modified spark plugs for temperature measurement.
| Identifier | ExFiles\Box 138\2\ scan0110 | |
| Date | 26th July 1937 | |
| 1328 1163 Rm{William Robotham - Chief Engineer}/CTS{C. Trot Salt - Carburation}5/R.{Sir Henry Royce} 26th July, 1937. A.C. Sparking Plug Co.,Ltd., Dunstable, BEDS: Dear Sirs, Can you supply the specially modified sparking plugs which take thermo-couples for temperature measurement of combustion chambers? Will you please supply information re this method of temperature check. Yours faithfully, For ROLLS-ROYCE LTD. | ||