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).
Fitment of Enots petrol filters on 40/50 chassis and the ventilation requirements for cars with cast dashboards.
| Identifier | ExFiles\Box 44\1\ Scan261 | |
| Date | 21th November 1928 | |
| BY.{R.W. Bailey - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X4037 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}4/LG21.11.28. PETROL FILTERS. X4037 X3700 With reference to the Enots petrol filter which we are about to fit on 40/50 chassis. You will appreciate from our memos, that no car can be delivered with cast dashboard unless the filter is ventilated. Therefore all the Zenith filters on present 40/50 cars might be used up on 20 HP. cars or in some other way. We should be obliged if you will look into the question of getting the Enots type connections arranged so that we can get the neat connection for the air vent and also a neat flange for attachment to the engine. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||