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).
Viability and cost of die-casting gearbox dipsticks in aluminium versus steel for various car models.
| Identifier | ExFiles\Box 148\5\ scan0424 | |
| Date | 26th August 1938 | |
| ~~HY{Tom Haldenby - Plant Engineer}~~ & Rm.{William Robotham - Chief Engineer} from RHC{R. H. Coverley - Production Engineer}/DWB.{D. W. Brown} ~~Hs{Lord Ernest Hives - Chair}~~ Hdy.{William Hardy} RHC{R. H. Coverley - Production Engineer}/DWB.{D. W. Brown}1/LS.26.8.38. GEAR BOX DIPSTICKS. [Pencilled note: 1153 1260] Further to Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}11/JH.18.8.38., we have now investigated the possibility of Die-Casting the Dipsticks in Aluminium. The price would be the same as for the all steel type, but there is an additional Tool cost of £20. 0. 0d. which would be recovered after producing 275 Chassis. The Wraith and Bentley 50 could be made from a common die, but owing to a difference in the length of handle, the Phantom III would need a separate die-involving a further Tool cost of £20. 0. 0d. Alternatively this could be of steel as previously suggested. In the case of Phantom III it is doubtful if Aluminium would be suitable, in any case as the Dipstick operates direct in the Aluminium Gear Box Cover. This might possibly result in seizures occurring between the two Aluminium parts. RHC{R. H. Coverley - Production Engineer}/D.W.Brown. [Handwritten note:] GRY{Shadwell Grylls} - Agree to PIII being steel Rm{William Robotham - Chief Engineer} | ||