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).
Response to an inquiry about a 'Trepidographe' device for testing chassis springs, stating no information is available.
| Identifier | ExFiles\Box 25\3\ Scan068 | |
| Date | 8th July 1921 | |
| W/S. X634 Sg.{Arthur F. Sidgreaves - MD} from Hs.{Lord Ernest Hives - Chair} Hs{Lord Ernest Hives - Chair}6/LGS.8.7.21. Referring to your Sg{Arthur F. Sidgreaves - MD}2/BM/2.7.21 and to attached letter from A.{Mr Adams} Wiklunds Maskin & Velocipedfabrik re. their Trepidographe (outfits on the chassis to register on a table every kind of bumps and at the same time also make it possible to judge of the elasticity of the springs when the car is suspended). We have no information of this matter. Hs.{Lord Ernest Hives - Chair} | ||