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).
Description of how a pressure gauge records maximum cylinder pressure and its A.I.D. approval for Type Tests.
| Identifier | ExFiles\Box 165\4\ img145 | |
| Date | 9th March 1932 | |
| -2- HS{Lord Ernest Hives - Chair}/Ymr.3/IA.9.3.32.contd This sequence of events takes place on each cycle and a shower of sparks passes from the pointer end on the pressure gauge to the insulated strip due to the repeated interruptions in the primary circuit. The reading which the pressure gauge is now recording is equivalent to the maximum cylinder pressure. A.I.D. approval has been obtained for the complete apparatus which is now ready for use on Type Tests etc., as required. HS{Lord Ernest Hives - Chair}/H.R.Young. | ||