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).
Accompanying blueprints for a Revised Senior Gearbox.
| Identifier | ExFiles\Box 136\2\ scan0157 | |
| Date | 25th January 1940 | |
| 1/53. File TO. Rm{William Robotham - Chief Engineer} EV{Ivan Evernden - coachwork}/HH.2./ 25. 1. 40 Clan/EXP. Revised Senior Gearbox Please receive herewith 2 blueprints of the following drawings as requested. GB. 5385. Servo Drive Worm Gear GB. 5388. Outer Cone (3rd Speed) GB. 5387. 1st Speed Driven Gear RG.{Mr Rowledge} 189 2nd Motion Shaft & Gears } Alternatives RG.{Mr Rowledge} 190 2nd Motion Shaft & Gears } RG.{Mr Rowledge} 183 Reverse Shaft & Gears RG.{Mr Rowledge} 179 2nd Speed Driven Gear The above prints are extra to the normal issue. EV{Ivan Evernden - coachwork}/HH. | ||