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).
Method of analysis and production of A.C.9 alloy for aero bearings.
| Identifier | ExFiles\Box 115\3\ scan0302 | |
| Date | 5th November 1938 | |
| -2- Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}8/JH.5.11.38. A further point which arises, is method of analysis, and it would seem that a lot would be gained if both Wellworthy and H.D.A. adopted the same procedure in detail as R R.{Sir Henry Royce} This also serves to confirm that Hl. will draw up in detail our method of analysis. Finally it has been suggested that we should produce and put on one side, a certain amount of A.C.9 in ingots. The amount suggested is one ton. In producing this, Hl. has stated that he would like samples for analysis at the beginning in the middle and at the end of the melt. This is to ensure that this particular stock is of known analysis. The reason for this stock is (a) To be available for any experimental sets of aero bearings. (b) To be available for a supply of say 400 lbs. to Wellworthy, so that they may keep this in reserve for an emergancy in instances already mentioned. Our main interest here, is that continuity in production of bearings for outside firms should not suffer, while Wellworthy and H.D.A. are learning now to make A.C.9. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} | ||