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).
Unsatisfactory diagrams and instructions for the S.S. Switchbox magneto switching system, which could lead to wiring errors and electric shocks.
| Identifier | ExFiles\Box 65\2\ scan0032 | |
| Date | 28th May 1929 | |
| X7720 BY. {R.W. Bailey - Chief Engineer} from EFC. {E. Fowler Clarke - Electrical Engineer} C. BY {R.W. Bailey - Chief Engineer} /RD. C. BY {R.W. Bailey - Chief Engineer} /HEB. {H. Biraben} EFC {E. Fowler Clarke - Electrical Engineer} 3/D28.5.29. X.7730. S.S. SWITCHBOX. MAGNETO SWITCHING. X8791 The present diagrams and instructions for the wiring of the magneto switching system are not quite satisfactory from the Works point of view. Also we have arrived at the fact that with the present arrangement it is still possible to receive a shock from the magneto switch knob when the main switch lever is in the M & C position. We mentioned this matter to you in conversation yesterday, and it was left that we would look into it with a view to deciding the seriousness of this point, i.e. before you did anything in the matter. In the meanwhile however, it is understood that you will arrange to have the matter of making the works instructions, regarding the magneto wiring, more clear, so that errors cannot be made in the wiring up of the magneto switching. Errors have occurred. We have given, or can give, the necessary explanation of the manner in which the present diagrams and instructions lead the Works astray. EFC. {E. Fowler Clarke - Electrical Engineer} . | ||