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).
The governor spring data for the Bentley V distributor, following a request.
| Identifier | ExFiles\Box 168\3\ img092 | |
| Date | 2nd March 1939 | |
| 6119. To By/RD. c. to Da.{Bernard Day - Chassis Design} c. to By.{R.W. Bailey - Chief Engineer} Rm{William Robotham - Chief Engineer}/RC.{R. Childs}7/JH2.3.39. re Distributor to DB.{Donald Bastow - Suspensions}2287. Bentley V.{VIENNA} We have now determined the governor spring data for giving the characteristic requested by Rm{William Robotham - Chief Engineer}/wdl.13/MH.{M. Huckerby}22.2.39. Main Spring as DW.677. Auxiliary spring as follows :- Load - 2 lb. 2 oz. + 2 oz. Radius of loading .875". Total deflected angle 170°. Free angle 148°. Mean diam. .360". Inside diam. .296" Number of effective coils 3.4 Diam. of wire 16 s.w.g. (.064"). The vernier adjustment has been severely criticised by the testers as being difficult to operate and should be improved as soon as possible. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} | ||