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).
Page 2 of a technical memo detailing the damper, carburettor, and control systems.
| Identifier | ExFiles\Box 151\2\ scan0198 | |
| Date | 1st March 1934 | |
| -2- Hs {Lord Ernest Hives - Chair} /Les.16/KW.1.3.34. The increased damper loads make the car safer for braking at high speeds, as the axles do not leave the ground so easily. There is a safety release valve in the control system so that if either the governor valve or hand control valve stick no excessive pressure will be built up in the system causing the control system or the dampers to fail. The carburetter mixture control is now operated by the starter carburetter control. No new instructions are required for this control. The max. pressure used in our control system is only 35 lbs/Sq.in. whereas Hartfords use 400 lbs/sq.in. The dampers are connected to the axles by spring loaded ball ends, so no wear is liable as in the case of the silent bloc bushes of the Hartfords. Although the same oil is used in the control system as in dampers, the control system is a closed system and separated from the oil in the dampers by sylphon bellows. The movement of the bellows compresses the damper valve spring, and thus increases the load of the damper. Hs {Lord Ernest Hives - Chair} /I.A.Leslie. | ||