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).
Letter responding to a proposal for dynamo control, discussing thermostatic vs voltage regulation methods.
Identifier | ExFiles\Box 31\1\ Scan030 | |
Date | 5th March 1919 | |
X 1402 ByZ/P5.3.19. Mr. W.O. Kennington. c/o W.A. Johnson. 14 Panton Street, S.W.1. March, 5th 1919. Wednesday. X 3521 Dear Sir. Referring to your letter of the 3rd inst. with its attached copy of your previous letter of the 17th ultimo. I regret delay in replying to the latter letter. which, however, occurred in the firstmplace due to the writer being away with the usual current epidemic attack. On my return to the works your letter was put before me, but as it did not meet the essential requirements which I mentioned at our interview, namely that the dynamo should be controled by a Trrell voltage regulator, I am afraid that I let the matter slip. Since receiving your second letter I have been looking the matter over, and although I cannot hold out the same hopes of this Company adopting your standard regulation, namely, that of Thermostatic control, still at the same time we are quite prepared to accept one of these dynamos so controlled for experimental purposes. You will of course, appreciate the fact that there is a considerable difference between what you are now offering us and what we said we were prepared to seriously consider, particularly in view of the fact that we have now some four or five years experience with the Tyrrell constant voltage scheme, whereas, we are quite unacquainted experimentally with the proposed method of control by temperature rise on a resistance. I mentioned these points in order to make quite clear that we are not swerving from our original proposition, but that we have now to consider a distinctly different one. which, howeverm under the circumstances we are quite prepared to go into with an open mind, and to report upon to our Chief Contd. | ||