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).
Extract from a report discussing a reduced charge switching scheme for a dynamo.
| Identifier | ExFiles\Box 163\6\ img041 | |
| Date | 16th May 1930 | |
| X6016. Extract taken from report in X.8780 ref. EFC1/AM16.5.30. The reduced charge switching scheme inter-connected with the head lamp switch was put forward for your consideration in a memo of ours of July 1928. Later, in further referring to this suggestion in our EFC3/T3.10.28 we remarked that, in combination with the higher output dynamo the suggestion would be more applicable. A possible objection to the arrangement was also referred to viz. that if a quick charge of the battery is required in some circumstances, full output of the machine is not normally available. By the removal of lamp fuses from the distribution box it is possible, in case of necessity, to realise full dynamo output. It is this very possibility that has prevented us from giving a setting of the dynamo (see paragraph on p.4. referring to control brush position) which would otherwise enable it to give a still larger output than is in the circumstances considered safe from overheating, but which is in any case larger than it could be in the absence of reduced charge switching. So far the scheme has only been running on Phantom II in conjunction with the experimental 48 coil armatures for the dynamos though these are likely to be standardised as a result of running on 23-EX (and 14-GIV | ||