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).
Enquiry for an electrostatic voltmeter for insulation tests, with a list of five suggested suppliers.
| Identifier | ExFiles\Box 53\1\ Scan146 | |
| Date | 21th November 1922 | |
| Wd {Mr Wood / Mr Whitehead} /Ms. from EFC. {E. Fowler Clarke - Electrical Engineer} X 4563- EFC {E. Fowler Clarke - Electrical Engineer} 5/T21.11.22. X.4563 - RE ELECTROSTATIC VOLTMETER FOR INSULATION TESTS. Would you kindly make enquiries for an electrostatic volumeter reading up to 5000 volts. We suggest the following firms :- (1) Evershed & Vignoles, Ltd. Acton Lane Works, Chiswick, W.4. (2) Ferranti Ltd. Hollinwood. (3) Johnson & Phillips Ltd. Charlton, London, S.E.7. (4) Walsall Electrical Co.Ltd. 57, Bridge Street, Walsall. (5) White Electrical Instrument Co.Ltd. 2, 4 & 6 Gloucester St. {Capt. P. R. Strong} Clerkenwell, London. E.C.1. EFC. {E. Fowler Clarke - Electrical Engineer} | ||