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).
Technical issues and developments for various vehicle systems, including petrol, fuel, synchro-mesh, and brakes.
| Identifier | ExFiles\Box 161a\2\ scan0013 | |
| Date | 13th October 1937 | |
| - 3 - (10) Petrol System This is dealt with fully in Rm{William Robotham - Chief Engineer}10/R5.10.37 and the matter is being taken in hand very seriously in view of the many customers who have had failure on the road. Hs{Lord Ernest Hives - Chair} referred to the electrical failures of the petrol system. Rm{William Robotham - Chief Engineer} reports only about 1% of the failures were electrical. A large AC. mechanical pump is also being tested. (11) Fuel Consumption Tests are being carried out with a view to improving this and to bring the double carburettor on the P.III, as regards its jets, into line with the jets used on the 25/30. (12) Synchro-mesh Mechanism S. raised the point of this being inferior in operation to the P.II. This fact was agreed and there is a development in hand which will improve this. (13) Brakes A lengthy discussion took place on this subject chiefly on the merits of light alloy or cast iron drums. Hs{Lord Ernest Hives - Chair} definitely registered his dislike of light alloy drums. They are lighter in weight, 45 lbs, but squeak just as badly as any other. It is suggested that the steering is better, i.e. more free from joggles with light drums than with heavy drums. Also that with the hand brake operating the same rear shoes as the foot brake, there is a danger that with cast iron drums these might, under certain conditions, let the car run away when left on a slope. RHC{R. H. Coverley - Production Engineer} doubts whether Works could maintain the necessary quality and accuracy needed for light alloy drums. The question of increased front brake pressure was raised and the cost of introducing this mod. at the beginning of "D" series was asked for. S. would like to be informed of the present distribution of brake pressure and the proposed distribution under this mod. (14) Continental P.III See Rm{William Robotham - Chief Engineer}10/R5.10.37 - Forward. | ||