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).
Letter from Rotax advising on the modifications required for a 'Goshawk' dynamo to make it suitable for an earthed system.
| Identifier | ExFiles\Box 51\5\ Scan099 | |
| Date | 9th September 1921 | |
| TELEPHONE: WILLESDEN 2480. TELEGRAMS: RODYNALITE, PHONE, LONDON. OUR REF. AGB/MP. YOUR REF. EFG4/T. X4342R Rotax (ACCESSORIES) LTD. ELECTRICAL ENGINEERS. HEAD OFFICE: ROTAX WORKS, WILLESDEN JUNCTION, LONDON, N.W.10. BRANCH DYNAMO WORKS NEWTON'S LTD TAUNTON HOOD, SCREEN & BRASS WORKS: LANDOR STREET, BIRMINGHAM. SERVICE DEPÔTS: 291-3, DEANSGATE, MANCHESTER. LANDOR STREET, BIRMINGHAM. NEWTON'S LTD TAUNTON. PARIS DEPÔT: 20, RUE TROYON. September 9th., 1921. Messrs. Rolls-Royce Ltd., Nightingale Road, DERBY. X. 4342.R X. 4359.R Dear Sirs, We are in receipt of your letter of the 8th.inst. re Dynamo for "Goshawk", and in reply would advise you that to make this machine suitable for an earthed system would not entail any serious modifications, as all that would be necessary would be to remove the mica plate and insulating bushes from the negative brush holder so that the holder is bolted direct on to the end shield, and the negative on the terminal board will of course be unnecessary. The sample machine which you already have by you is of the insulated type. Yours faithfully, ROTAX (MOTOR ACCESSORIES) LTD. FOR ROTAX (MOTOR ACCESSORIES) LTD. Chief Electrical Engineer | ||