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. regarding a noisy heater unit motor and its dispatch.
| Identifier | ExFiles\Box 137\2\ scan0237 | |
| Date | 24th November 1938 | |
| 1158 File Derby General 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. 24th November, 1938. Messrs. Rolls-Royce, Ltd., DERBY. For the Attention of Mr. C. S. Steadman. HCS Rly/SJD Dear Sirs, Replying to your letter of the 22nd instant, we have to inform you that the third Heater unit has now been dispatched to you. Unfortunately, the motor, when received back here for the second time, was still inclined to be noisy, although from a performance point of view it had been improved, and as a matter of fact had to be re-wound. The noise came from the brush gear, and in order to save time we ourselves have tightened up the brush boxes slightly and re-bedded in the brushes, thereby reducing the noise very considerably, though we still consider that it is not so quiet as the original two sent to you. If, on testing this, you feel that it is really not satisfactory, perhaps you will be good enough to communicate with us. We note your remarks regarding further deliveries of Heater units, and will deal with the matter immediately on receipt of order. Yours faithfully, THE AC-SPHINX SPARKING PLUG CO. LTD. D.{John DeLooze - Company Secretary} 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. | ||