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 laboratory to analyse, heat treat, and test twelve 'as cast' A.C.9. bearings from Wellworthy.
| Identifier | ExFiles\Box 115\5\ scan0199 | |
| Date | 22th November 1938 | |
| 1020a To Hl. (Laboratory) Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}11/JH.22.11.38. A.C.9. BEARINGS. In accordance with arrangements made at the meeting with Wellworthy and H.D.A. We are handing to you twelve (as cast) bearings produced by Wellworthy. We will be obliged if you will analyse, heat treat, and test these bearings, and issue a report of your findings. You will remember that their greatest difficulty has been in reaching the desired brinell hardness. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} | ||