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).
Report outlining the facts and recommendations regarding the fitting of chassis road springs.
| Identifier | ExFiles\Box 95\2\ scan0138 | |
| Date | 25th November 1936 | |
| γ 346 Hs.{Lord Ernest Hives - Chair} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}12/R.25.11.36. CHASSIS ROAD SPRINGS. The facts about fitting of springs are:- (1) Sales specify the weight of coachwork, giving this to 1 cwt, such as "10/11 cwt limousine". (2) By.{R.W. Bailey - Chief Engineer} instructs springs to erecting shop for the higher poundage mentioned by Sales; this only a week or so before chassis is erected. (3) Sales change the body specification for a certain chassis at the rate of about 3 per week. (4) New instructions go to the Works if this change is:- (a) more than 1 cwt (b) spare wheel carrier moved. (c) abroad instead of England. (5) A negligible number is changed owing to complaints by JLE.{J. Lee Evans - Chassis Test Manager} on final test. (6) Roy.{Sir Henry Royce} orders springs for a new type of chassis that would suit experimental cars. Customers cars always turn out heavier than the experimental cars. (7) The 276 obsolete "normal type" 25 H.P. springs in the Works are due to Sg.{Arthur F. Sidgreaves - MD} insisting on all cars having low rating springs after a certain date. (8) Test Dept. change less than 10 cars a year owing to wrong buffer clearance measurements. Our recommendations are:- (1) Springs should be ordered in 50 lb stages, but never altered less than 100 lbs (as now). More nearly the correct springs will then start on the chassis, and greater variations can take place without the necessity for a spring change. This arrangement costs no more, and does not mean having any larger supplies in the Works. (2) No changes to be made because of alteration to spare wheel carrier. [Handwritten] Why the spare wheel carrier | ||