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).
Testing of shock absorbers using indicator diagrams, comparing methods with the Delco factory.
| Identifier | ExFiles\Box 151\2\ scan0020 | |
| Date | 10th February 1933 | |
| File X.235 EJJ. Sft. {Mr Swift} Wer. from Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 8/KT.10.2.33. X832 In the Delco Shock Absorber factory they test every one of their shock absorbers, and take an indicator diagram. This is actually much quicker than checking the load of the shock absorber by hand, and is really the only accurate means of finding that the shock absorber is right under working conditions. On the new damper which is at present going into production, it is virtually impossible to check the setting by hand. We therefore consider it is imperative that some means of taking indicator diagrams in the works should be arranged. Sft. {Mr Swift} saw the actual tests of the shock absorbers in the factory, and will therefore be able to appreciate the speed at which the necessary indicator diagrams were taken. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} | ||