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 'Millenite' cast iron for brake drums, with a request to experiment with its production.
| Identifier | ExFiles\Box 142\4\ scan0163 | |
| Date | 4th February 1936 | |
| X1203 To By.{R.W. Bailey - Chief Engineer} Hs{Lord Ernest Hives - Chair}/AFM.{Anthony F. Martindale}2/KW.4.2.36. Brake Drum Cast Iron. With reference to our conversation about "Millenite". Attached is a photomicrograph taken from a sample drum of "Millenite". This structure is thought to be very suitable for a surface rubbing against Ferodo. If you can persuade any iron founders to experiment until they can produce iron having this microstructure, we should like to try some drums made from it. Hs{Lord Ernest Hives - Chair}/A.F.Martindale. | ||