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).
Mr. Royce's considerations and proposed modifications for various chassis components.
| Identifier | WestWitteringFiles\D\May1920\ Scan45 | |
| Date | 18th May 1920 | |
| To EC. DA.{Bernard Day - Chassis Design} & BY.{R.W. Bailey - Chief Engineer} -7- E1/C18/5/20 Contd. was not considered by Mr. Royce to be practical as a stamping, and he wishes it to be converted to an aluminium casting. In connection with the subject of clutches generally, Mr. Bailey is to look up particulars of the Delaunay Belleville clutch of the type fitted to the 1914 or 1915 chassis. X. 3493 Rear Axle Differential Pinion. - The teeth on these wheels were thought by Mr. Royce to appear weak, and he wishes the present wheels to be scrapped and some new ones made having xxx teeth of greater angle of obliquity than 20°. X.3562 Rear Axle Brake Anchorage Hub. - This part was thought by Mr. Royce to be on the heavy side, and he would like some move to be made to lighten it. X.3524 Rear Spring Front Pivot. - Mr. Royce considers this part wants more heel on the edge of the bolt flange. E.{Mr Elliott - Chief Engineer} | ||