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).
Modifications to the small R.R. chassis specification, including changes to the clutch, gearbox, and couplings.
| Identifier | ExFiles\Box 75\1\ scan0212 | |
| Date | 23th November 1920 | |
| To CJ. from R.{Sir Henry Royce} Copy to EAC. " " BJ. " " Wor.{Arthur Wormald - General Works Manager} " " PN.{Mr Northey} " " C. " " Da.{Bernard Day - Chassis Design} " " Hs.{Lord Ernest Hives - Chair} " " Ev.{Ivan Evernden - coachwork} " " EP.{G. Eric Platford - Chief Quality Engineer} X.4244 R5/G23.11.20. X. 4219. RE SMALL R.R.CHASSIS. X.4244 We have made certain slight modifications to the specification we sent you on the 17th instant (R4/G17.11.20) namely, we think the clutch will be built as a single plate clutch, principally owing to the three speed gear box carried by the end of the engine. X.4244 There was also a slight error in the specification referring to the gear box; it should have said, "but modified so as to be suitable for attachment to the engine instead of the torque tube". X.4246 Another point in the specification which we expect to depart from is the fabric disc couplings. These will probably be tried, but we shall also supply an alternative of the usual cross pin universal on the back axle, and a sliding pot universal on the back of the gear box. The reason for this is that there is a certain amount of pumping on the propeller rod, and we feat that the fabric joints will not stand this, and in any case we think that we may find that they are not sufficiently lasting and reliable to judtify their adoption. R.{Sir Henry Royce} | ||