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 from Peto & Radford discussing the properties and testing of threaded rubber separators.
Identifier | ExFiles\Box 54\5\ Scan056 | |
Date | 28th January 1926 | |
XJ839 Copy of letter received from:- Messrs Peto & Radford. 50, Grosvenor Gardens, LONDON. S. W. 1. Wd{Mr Wood/Mr Whitehead}/14/MJ8126. WP/HA 281. January. 28th, 1926. Messrs. Rolls-Royce Limited., Nightingale Road, DERBY. Dear Sirs, THREADED RUBBER SEPARATORS. In reply to your favour of the 21st instant, we note Mr. Fowler Clark's comments to which we would reply as follows: (1) We did not suggest that Willard Separators had a high internal resistance; the third paragraph of our letter only alluded to the fact that this was a factor that had to be kept in mind. (2) We found that several makers experienced the development of brittleness when they tested this separator on its first arrival in this country. They may have improved in this respect. It is the only adverse criticism we have ever heard about them. Your experience seems to suggest they are improved. With regard to the way in which the separators should be turned towards the plate as the sample that we are making up has cells alternately assembled, your test will probably prove which is best. We think without doubt, the ribbed surface should face the plates as it lessens the resistance on high discharge rates. We quite agree with you that if it was possible to find a satisfactory method of preventing active material from falling off it would be a great achievement. We have a plate which was introduced by the writer in 1908 that actually does this, but it is quite useless on high discharge work. We enclose some particulars of this herewith and are asking the Works to send you a sample when you will immediately see the idea. Yours faithfully, PETO & RADFORD. (Sgd) WM. PETO. | ||