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).
Material and design options for Phantom III front brake shoes.
| Identifier | ExFiles\Box 92\4\ scan0299 | |
| Date | 2nd February 1937 | |
| To HY.{Tom Haldenby - Plant Engineer} Copy to Mr. Rm.{William Robotham - Chief Engineer} RHG. H.P.G. FMN/AFM.{Anthony F. Martindale} 306 MARTINDALE file Phantom III Front Brakes with Aluminium Shoes. We have already sent you N.Sch.4956 showing a scheme for aluminium brake shoes on Phantom III. On this scheme we showed the Hancock shoe as a mild steel forging. We are told by the Works that it would be cheaper if this shoe were made as an aluminium bronze die casting. Another suggestion is that it should be cast in aluminium alloy and tested to see whether it is strong enough. Whilst making this modification we have taken the opportunity of showing how the bifurcated rivet could be fitted to the Hancock shoe. We understand that you have already applied the bifurcated rivet to the shoe. We understand that our N.Sch.4956 which was traced from an arrangement, is not absolutely up to date in the matter of its brake pull-off shoe. We have therefore shown the correct springs on the new design N.Sch.5026. Ev.{Ivan Evernden - coachwork} Att:N.Sch.5026. | ||