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).
Letter from AC-Sphinx Sparking Plug Co. Ltd. regarding the supply and specification of heater unit motors.
| Identifier | ExFiles\Box 137\2\ scan0172 | |
| Date | 8th October 1938 | |
| File Healey 1158. AC-SPHINX SPARKING PLUG Co. LTD. DIRECTORS: N.F. Stockbridge, W.O.Kennington, C.J.Bartlett. Telegrams: SPHINX, DUNSTABLE. DUNSTABLE, BEDS., ENGLAND. Telephone: DUNSTABLE 360. Our Ref DBB/DJG Your Ref. Rm{William Robotham - Chief Engineer}/Std.7/MH.{M. Huckerby} 8th October, 1938. Messrs. Rolls Royce, Ltd., DERBY. For the Attention of Mr.A.S. Steadman. Dear Sirs, With reference to your letters of the 6th and 7th instant regarding Heater units. We will of course pick out some motors which we consider to come within a fair standard of noise, but as you require a motor on the lower speed it may be a day or two before we can supply you with this particular one. Regarding the increased spindle length, this would of course produce no real difficulty, but we wonder whether in the first instance it would be possible to supply motors with a built-on extension, though eventually these could be made with the full length of solid spindle. We believe that our Mr. Faulconbridge has already written you on the question of prices, and we would assure you that we quite understand that the resistance of the rheostat must be 2.5 ohms total resistance, and we hope to supply you with a sample of this during the next day or two. We will communicate with you early next week regarding delivery of the motors in question. Yours faithfully, THE AC-SPHINX SPARKING PLUG CO. LTD. (Signature) R.D. BENNION BROWNE. Chief Engineer. AC Air Cleaners - AC Clocks - AC Fuel Pumps - AC Oil Filters - AC Oil Gauges - AC Plugs - AC Speedometers - AC Windscreen Wipers. | ||