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).
Design of a servo countershaft for the Phantom TIV, using oilite and floating bushes.
| Identifier | ExFiles\Box 95\4\ scan0125 | |
| Date | 12th February 1936 | |
| (34) ARH -BY.{R.W. Bailey - Chief Engineer} C: Butler.Der.Fwd. HS{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} E/HDY.{William Hardy}1/HP.12.2.36. Servo Countershaft - Phantom TIV. As requested in RHC.{R. H. Coverley - Production Engineer}RH.{R. Hollingworth}2/7.2.36, and in accordance with the policy of using "oilite" wherever it is thought to be suitable on the brake gear, we have made a design for a servo countershaft as shown by N.Sch.4762 herewith. The oilite bushes are the same as are to be used for the rear brake intermediate shaft, as shown by N.Sch.4754. Floating bushes are used as it is thought that these have advantages for production owing to the uncertainty as to what the clearance will be after a bush has been pressed in when, as with "oilite", it is not permissible to ream them to size. The central bolt is turned down and threaded both ends. No provision is made to hold it against turning when tightening the nuts as it is assumed that it can be held in a vice on the central reduced part and one bracket tightened in place, after which the friction will prevent rotation when the other nut is tightened. E/HDY.{William Hardy} | ||