Requesting the procurement of a modified switch spring for the Sequence Starter Motor No. 2 scheme.
| Identifier | ExFiles\Box 64\2\ scan0043 | |
| Date | 30th April 1927 | |
| X16215 To BY {R.W. Bailey - Chief Engineer} /RD. from EFC. {E. Fowler Clarke - Electrical Engineer} EFC {E. Fowler Clarke - Electrical Engineer} 4/T30.4.27. SEQUENCE STARTER MOTOR NO. 2. SCHEME. SWITCH FLEXIBLE SPRING. The characteristics of this spring are not considered to be satisfactory for the purpose to which it is put. A spring of lighter gauge wire of 50% more uncompressed length and giving the same pressure in the set-up position would be better, provided the maximum stress remains well within the elastic limit. Will you kindly look into the matter of obtaining one or two springs with these modified characteristics. EFC. {E. Fowler Clarke - Electrical Engineer} | ||
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).