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 Everett, Edgcumbe & Co. Ltd. concerning the qualities of Warren synchronous motors.
| Identifier | ExFiles\Box 165\4\ img066 | |
| Date | 23th May 1930 | |
| EVERETT, EDGCUMBE & CO., LTD. Sheet 2. Messrs. Rolls-Royce Ltd., 23rd May, 1930. at present no demand for synchronous motors, except to run at a fixed frequency. From the information given above you will see that Warren Motors will retain their synchronous qualities over very wide variations in voltage and frequency and we hope this information will be of assistance to you. Yours faithfully, For EVERETT, EDGCUMBE & CO., LTD., [Illegible Signature] Director. | ||