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).
Covering memo for reports on the operation of a Westinghouse Spark & Ignition Tester.
| Identifier | WestWitteringFiles\I\October1922\ Scan69 | |
| Date | 31th January 1922 | |
| To R & E from EPC. c. C.J. & F.H. c. Ey. & I.P. c. Hg. & Da.{Bernard Day - Chassis Design} ORIGINAL EPCS/T31.1st.22. WESTINGHOUSE SPARK & IGNITION TESTER Please find attached copy of my assistants' reports on the operation of the above tester, the principle of the action of which is that of utilising the light producing properties of a high tension displacement discharge through Neon gas. EPC. | ||