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).
Modification of Bentley steering to accommodate large tyres, specifying a Marles type gear.
| Identifier | ExFiles\Box 87\5\ scan0238 | |
| Date | 23th March 1937 | |
| γ 250. To HPS{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}6/AP.23.3.37. BENTLEY STEERING. We wish to be able to use on a Bentley chassis large section tyres at a comparatively low pressure, and in order to keep the steering reasonably light it will be necessary to have a Marles type gear. The attached Rm.{William Robotham - Chief Engineer}342 shows a Wraith type gear applied to a standard Bentley which is the arrangement we wish to use. Will you please detail this and construct one set of parts for chassis B.23.AE. The controls and steering wheel should be as standard Bentley and the outer column should be black stove enamelled with the upper sleeve chromium plated. We suggest that the cam tube, which will be longer than existing tubes, should be built up from an existing tube by a sleeve and brazing. The side steering tube will be shorter than standard. The cam and roller will be exactly as Wraith III. Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} | ||