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).
Instructions from Mr. Royce regarding the design and lubrication of the shock damper for the 40/50 HP chassis.
| Identifier | WestWitteringFiles\D\February1920\ Scan51 | |
| Date | 1st February 1920 | |
| To DA.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} Copy to CJ. BN.{W.O. Bentley / Mr Barrington} HS.{Lord Ernest Hives - Chair} CK.{Mr Clark} ORIGINAL. E1/G17/2/20. X.3912 RE SHOCK DAMPER - 40/50 H.P. CHASSIS. With reference to N. scheme 249, would you kindly note that Mr. Royce would like you to control the rotor of the shock damper endways by means of adjusting washers on the inside of the casing, and without using the external unlubricated faces at all for this purpose. Thus the rotor end bearing faces will be the end of the serrated drum and the collar formed by the web of the drum, both of which are internal lubricated faces. The single bushing shewn for the rotor bearing on N. scheme 249 should be used and the space between the taper serrated lever boss and the shock damper case should be filled by a felt washer for protection against water and dirt. Additionally, Mr. Royce thinks that the shock damper should be lubricated by means of grease and not oil, since he thinks that the oil will leak away and be replaced by water. A grease stauffer should therefore be shewn on the spindle instead of an oil plug. E.{Mr Elliott - Chief Engineer} | ||