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).
New scheme for servo lubrication and a related lever geometry adjustment.
| Identifier | WestWitteringFiles\T\January1929-February1929\ Scan144 | |
| Date | 14th February 1929 | |
| BY.{R.W. Bailey - Chief Engineer} FROM DA.{Bernard Day - Chassis Design} Copy to SG.{Arthur F. Sidgreaves - MD} HS.{Lord Ernest Hives - Chair} SECRET. ORIGINAL DA{Bernard Day - Chassis Design}2/M14.2.29. SS.{S. Smith} SERVO LUBRICATION. X7370 X3806 Herewith we send N. scheme 2827. shewing a suggestion for conveying some of the oil from the servo drip plug on to the cam faces. It is suggested that the bulk of the oil will probably go down on to the servo shaft bearings, and a proportion only will reach the cams. Evidently it is possible to vary this proportion by altering the drilling of the vertical hole and the height of the sloping hole. This can probably best be determined experimentally. It will be necessary to fit a rather larger drip plug. It will be noticed that we suggest that since the lever on the countershaft across the gearbox has been increased in length, and therefore its angular move-ment reduced, it is desirable to lengthen the link connecting to the cam lever so that this lever may move equally on either side of its centre. If left as now the geometry would be bad. DA.{Bernard Day - Chassis Design} | ||