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).
Lighting installation, discussing ampere meters and experiments with a Bijur dynamo.
Identifier | ExFiles\Box 38\3\ Scan171 | |
Date | 25th April 1919 | |
To R.{Sir Henry Royce} from EFC c. to CJ. X 3362 EFC1/T25.4.19. RE LIGHTING INSTALLATION AT W.W. We have received from the Weston Company one of their Model 269 Weston 30/0/30 ampere meters and this we are instructing to be despatched to you to-day. Will you kindly have returned the one small round cut-out which was sent as a sample and which is slightly dissimilar to the dozen recently sent, as it is necessary to return this one to the owner. Regarding your note N1/C15.4.19. we are now preparing the Bijur dynamo on 49-GB with the resistance in series with the field circuit so that it will run as a plain 12-volt shunt machine at a suitable speed. We are unwinding the regulator and re-winding this for 12 volts and we shall use this in conjunction with a plain 12 volt shunt wound dynamo in our further experiments on this type of regulation. We have recently received a dynamo from Messrs. Smith which is controlled on the lines of the Trier & Martin patent. It is very easy to use this as a simple shunt wound machine. EFC. [Footer text, upside down]: R.R. 235A (500 T) (S.D. 408. 26-4-17) Bm. 2/156/13. | ||