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).
Photomicrographs showing the structures and decarburisation of road spring plates.
| Identifier | ExFiles\Box 67a\2\ scan0124 | |
| Date | 12th May 1928 | |
| Y8410 By.{R.W. Bailey - Chief Engineer} c to Hs.{Lord Ernest Hives - Chair} H13/EA12.5.28. Laboratory. Road Spring Plates - Further to our memo. M612. We send you herewith photomicrographs nos.A590, A591,A592,illustrating the structures of springs nos.9,10,and 7 respectively in our memo.M612, and also photomicrograph A589 illustrating decarburisation observed to be distributed patchily over the surfaces of the springs, the maximum depth of this decarburisation being 0.004". Hl. HE One copy of each photo. to By.{R.W. Bailey - Chief Engineer} " " " " " Hs.{Lord Ernest Hives - Chair} | ||