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).
Patent specification for an Automatic Charge Reducing Switch, known as the Midgley Patent.
| Identifier | ExFiles\Box 35\3\ scan 097 | |
| Date | 16th May 1927 | |
| X4088 To RS.{Sir Henry Royce's Secretary} from EFC. EFC4/T16.5.27. AUTOMATIC CHARGE REDUCING SWITCH -MIDGLEY PATENT- I think Mr. Royce would be interested to see the complete patent specification of the Midgley device for reducing the dynamo charge. While I was with Mr. Royce last week I was uncertain as to whether we had sent this to him, but now find that a complete copy of the specification was attached to our memo EFC1/T4.12.26 on the above subject, addressed to R.{Sir Henry Royce} EFC. | ||