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).
The adoption of a regulation system for American-built chassis, recommending the Smith dynamo four-brush system.
| Identifier | ExFiles\Box 180\M2\M2.3\ img019 | |
| Date | 26th July 1920 | |
| R.R. 235A (100 T) (S.G. 648, 19-5-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 3618 -2- EFC2/T26.7.20. Contd. a nature which we are not able to explain at the moment. We do not know if our people in America have had much experience of this type of regulation either on the road or on the bench, or to what extent it is considered satisfactory in use on American cars; our point at the moment is merely that we over here cannot consider it sufficiently satisfactory in the light of our own experience to give our assent to the adoption of this regulation on the American built chassis. x.295. We do not, however, wish it to be understood that we do not agree with the principle of operation. We are still of the opinion that this principle is undoubt- edly the correct one and that provided it can be suitably carried out so as not to result in the apparatus being too sensitive to minor changes, we think that the ultimate results on the performance of the battery generally should be better than with the inherently controlled type of dynamos. Of these latter, we have definitely shown that the four brush (T & M) system as used in the Smith dynamos is undoubtedly the best, so that from the point of view of type of control, we can only at the moment recommend a dynamo such as the Smith in which this particular type of control is used. EFC. | ||