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 Phantom III hand brake lever to increase travel and leverage.
| Identifier | ExFiles\Box 92\4\ scan0245 | |
| Date | 23th October 1936 | |
| BY.{R.W. Bailey - Chief Engineer} c.c. Ba. Rm.{William Robotham - Chief Engineer} THS. Martindale 306 any comments? Rus E/HDY.{William Hardy}2/HP.23.10.36. Phantom III Hand Brake. We send herewith N.Sch.4929 showing modifications to the hand brake lever to allow of an extra 3" of travel at the handle. The existing travel of 7.750" becomes 10.750" with the new lever. The object of the increase is to allow of a higher leverage. We suggest a leverage of 84:1 obtained mainly by increasing the length of the lever on the countershaft to 2.750" from 2.050". E/HDY.{William Hardy} | ||