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).
Use of ferodo interleaved plates for road springs and suggesting alternatives.
| Identifier | ExFiles\Box 78\2\ scan0324 | |
| Date | 10th September 1920 | |
| Contd. -2- R6/C10.9.20. that the ferodo interleaving will stand road conditions of mud and water, etc. It rather indicates that the friction with ferodo interleaved plates would probably be in the neighbourhood of .15 to .200 and is verymuch less than the friction that takes place between steel and steel plates unlubricated and rusted. I have thought that if the Ferodo people could use copper or brass gauze in the manufacture of the road springs interleaves, it might help to prevent disintegration. X.3745. The only alternative to the Ferodo interleaves appears to be the binding of the springs with oil absorbant tape or cord, and an external jacket of leather or some water and oil proof material. I have also suggested the possibility of a rain and dust-proof cell for the rear spring if of cantilever type. R.{Sir Henry Royce} | ||