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).
The investigation into anodically treated pistons and related aluminium alloys.
| Identifier | ExFiles\Box 86\2\ scan0232 | |
| Date | 5th July 1934 | |
| Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} C.E.Wor{Arthur Wormald - General Works Manager} [Crossed out] C.E. [Crossed out] C.H. [Crossed out] C.RHC.{R. H. Coverley - Production Engineer} [Crossed out] C.EJJ. [Crossed out] Rm{William Robotham - Chief Engineer} BY.3/J.5.7.34. Anodically Treated Pistons. With reference to Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}3/KW.4.7.34 on the above subject, we should like to point out that we have been pursuing this matter for some considerable time now, it having been brought to our notice through the Research Dept. of the Institute of Automobile Engineers. The information we have on the subject is that the American process in this country is being worked by the Alumilite Company Limited, Thames Factory, Rainville Road, Hammersmith, London, W.6. We have been in correspondence with this firm and they definitely inform us that this process is capable of application to 14% Silicon - Aluminium Alloys, 10% Copper Aluminium Alloy and also to 10% Copper 5% Silicon Aluminium, but they have not yet been successful in applying the anodic oxidation treatment to the R.R.Range of Aluminium Alloys. They have had samples of our material both from Messrs. High Duty Alloys Limited, and also from the Automotive Engineering Company, and are now working to produce a satisfactory coating on our material. In view of the above, I suggest it is desirable that we should await the results of the experiments now in hand rather than embark upon investigations ourselves. BY.{R.W. Bailey - Chief Engineer} BM | ||