Technical issues and plans for a Bentley car, covering brake adjustments, the fan, luggage grid, and petrol pumps.
| Identifier | ExFiles\Box 11\5\ 05-page086 | |
| Date | 30th March 1934 | |
| Handwritten: Hancock. Please shew me your Ptt brake adjustment - with your suggested mud excluding improvement. [crossed out] Hotel de France, Le Mans, FRANCE. [crossed out] Le Laroux, Typed: To ns {Norman Scott} /Rm. {William Robotham - Chief Engineer} From G.W.H. 28-EX. We have received your memo Hs {Lord Ernest Hives - Chair} /Rmll/KW.17.4.34. (1) Brake Adjustment. The trouble which may occur and did so on the Bentley is caused by fine pieces of flint getting down into the aperture for the movement of the brake adjustment rod where it is anchored. As the brakes are adjusted the aperture is made greater on one side and less on the other. It is rather a deep recess and no protection. The sketch enclosed will probably show better where the trouble lies. It does not affect the adjustment of the brakes but will not allow the brake straps to return to normal when required to adjust the toggles. (2) Fan. You have evidently not got hold of the correct specification of this car. J in his specification called for a silent fan, but from Steadman's tests of the fans made, they were no quieter, no more efficient, and took approx. the same H.P. to drive them. They were not good enough to fit to the car. Please see Steadman's reports of same. A standard Phantom fan is fitted. (3) Luggage Grid. We will endeavour to obtain a suitable box of ballast and fix it on the luggage grid for tests, weight approx. 1 cwt. (4) Petrol pumps. In the first place the fitting of the petrol pumps was looked upon as a secondary item to simply run the car. H.Smith demanded a scheme from E. {Mr Elliott - Chief Engineer} as the previous pumps fitted to J.III. were considered a mess. E. {Mr Elliott - Chief Engineer} said as it was only temporary, there was no time to get out a scheme and left the fitting of the pumps to Smith. I am giving you this information as you were not there, and will not know the conditions. E. {Mr Elliott - Chief Engineer} half promised to look into getting a scheme out for fitting the vacuum pump on the crankcase side if the balanced cam was successful. | ||
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).