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).
Specifications for the Bentley 5 gearbox, covering reverse shaft clearance and a modified reverse selector spring.
| Identifier | ExFiles\Box 99\4\ scan0204 | |
| Date | 29th April 1939 | |
| 428 BY/CRL.{C. R. Lisson} Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} BY/NS.{Norman Scott}5/G:29.4.39. BENTLEY 5. GEAR BOX. 6 EXPERIMENTAL AND 300 SETS. The detail drawings for the Reverse Shaft running in white metal lined bronze bushes with .0035 diametral clearance should be added to the LOP. The alternative arrangement should be deleted. Selector Spring - Reverse. Please produce a detail drawing of a spring giving 2 1/4 times the load given by the existing spring. This spring should be painted RED, to avoid confusion with the other selector springs. The new spring should be added to the LOP. Reference to the fact that the spring is painted red should be made on the LOP. BY/NS.{Norman Scott} | ||