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).
Letter to Messrs. Thos. Firth & John Brown Ltd. discussing methods of corrosion protection for springs.
| Identifier | ExFiles\Box 154\2\ scan0116 | |
| Date | 14th July 1938 | |
| - 3 - Messrs. Thos. Firth & John Brown Ltd. Sheffield. 1. (a). To evolve a method of transforming the oxides on the plate to the stable magnetic type of oxide, which is a complete protection against corrosion. I am certain that these are the lines upon which springs will be produced, and if the proposals are followed through, the results would be equal to what we are now obtaining by grinding the surface of the plates to remove a depth of anything up to .015, and then plating the finished spring to prevent corrosion attack. Yours faithfully, FOR ROLLS-ROYCE LIMITED. CHIEF ENGINEER - CHASSIS. | ||