Different types of shock-absorbers available in France.
| Identifier | ExFiles\Box 28\1\ Scan144 | |
| Date | 22th January 1930 | |
| Sèvres P/W {Production / Derby Works} "Hs {Lord Ernest Hives - Chair} /Rm {William Robotham - Chief Engineer} " Ps6/RJ.22/1/30. Hs {Lord Ernest Hives - Chair} /Rm {William Robotham - Chief Engineer} 2/MJ.I5/I/30. Excelsior "Afa" is the shock-absorber meant undoubtedly. It is similar to the Hartford, and, according to Gr {George Ratcliffe} égoire, of Tracta firm, has no special peculiarities. There are at present in France two very good shock-absorbers: the "Dufaux" friction type, which can be regulated from the driver's seat, and the "De Ram", which is a very clever hydraulic affair. I am obtaining some dope on it, and will let you have it as soon as it arrives. Ps. | ||
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).