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).
Modifications to the bell crank levers on the Phantom III rear brakes.
| Identifier | ExFiles\Box 92\4\ scan0304 | |
| Date | 9th February 1937 | |
| Martindale - File . 306 DI. C.E. Da.{Bernard Day - Chassis Design} Rm.{William Robotham - Chief Engineer} HPS.{Horace Percy Smith - Experimental Factory Mgr} E/HDY.{William Hardy}1/HP.9.2.37. Phantom III Rear Brakes. We send herewith N.Sch.5031 showing modifications to the bell crank levers on the brake carrier plates to avoid the sharp corner which is at present produced by the machining on the boss. The right hand view shows how existing forgings are dealt with, and the left-hand view shows how we should like the forgings modified as soon as is practicable. The forging alteration consists only of the substitution of a rectangular section for the present elliptical section, and there should therefore not be any need for new dies. N.Sch.5031 herewith. E/HDY.{William Hardy} | ||