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).
Querying the insulation of switch frames for a sequence starter gear scheme, with a handwritten confirmation.
| Identifier | ExFiles\Box 64\4\ scan0080 | |
| Date | 15th August 1928 | |
| To BY/RD. from EFC. [Handwritten Annotation]: X.7655B [Reference]: EFC4/T15.8.28. SEQUENCE STARTER GEAR NO.2B SCHEME. In my note EFC1/T18.7.28 I raised the point of the insulation between the two switch frames. Is this O.K. ? [Signature]: E.F.C. EFC. [Handwritten Response]: Yes & also the mechanical interlock is insulated [Initialed]: RD | ||