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).
Suitability of different impact testing machines, comparing the Stanton and Arnold systems.
| Identifier | ExFiles\Box 76\2\ scan0056 | |
| Date | 1st December 1913 | |
| y632 COPY. COPY. R5/P 1.12.13. TESTING MACHINES. To Na.{Mr Nadin} from R.{Sir Henry Royce} Copy to J.{Mr Johnson W.M.} " " Wor.{Arthur Wormald - General Works Manager} With reference to Impact Testing, on further thinking the matter over, I think the Stanton machine of the Cambridge Scientific Co. would not be very suitable. One is impressed with the fact that if the notched bar does not give good results, then we should not expect the Notched bar in the Stanton tests to give good results. I therefore think you had better arrange to get us the best information you can with reference to the Arnold machine, and if we cannot purchase one, perhaps you could get us some drawings, which we might be able to touch up, and improve, before we get such a machine made. R.{Sir Henry Royce} I have a suggestion to make with reference to Arnold's system which might tell us the yield point it is a hydraulic indicator of the force required to bend the specimen. This would save the necessity of static test and could be used on pieces of frame or springs such as we could not get static specimens suitable. [Handwritten in left margin]: X914 | ||