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).
List of modifications and notes concerning gearbox components and testing.
| Identifier | ExFiles\Box 148\5\ scan0387 | |
| Date | 21th July 1938 | |
| -2- Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}7/MH.{M. Huckerby}21.7.38. B. Cont'd.{John DeLooze - Company Secretary} (4) A.{Mr Adams} (1) (5) Increased sideways movement of selectors. PD.234. (6) Eccentric fulcrum pins for actuating levers. PD.235. (7) Mods. to sliding pieces. A.{Mr Adams} (2). (8) Reverse shaft bore in box at an angle. Reverse gear bush W/MT .0035 clearance. Reverse shaft S/ZNCR. (9) Locating washers. PD.237. (10) Oil feed to reverse shaft. (11) AL/BZ reverse fork. (12) Stiffener at bottom of box casting. (13) Layshaft hardened all over. (14) Attachment of oil scoop to 2nd. motion shaft. (15) Gaco oil seal for servo. (16) Selector springs. A.{Mr Adams}(7). (17) Oil seal at front and rear of box to prevent loss of oil when standing on a gradient. Details are urgently required of part A for the 10,000 miles test, the long distance piece of which is a new 1st. motion shaft. For Part B we shall soon be short of gearboxes for the cars. Some of the modifications still require design drawings, and all require detailing. Two of the new boxes to have overdrive ratios and two standard ratios. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||