Letter regarding samples of an ebonite battery separator from the Exide Co. and a proposal for a different perforation method.
| Identifier | ExFiles\Box 54\5\ Scan009 | |
| Date | 7th May 1925 guessed | |
| -2- Contd. We enclose four portions of the same separator taken from one of these batteries, and also a sample portion of an ebonite separator which we received from the Exide Co., and which we had intended to show to your Mr. Minchin. This sample is supposed to give a bigger percentage opening than the separator perforated with the ordinary circular holes. It does not appear that this would be the case, and whether it actually is so, I do not really know, but in any case you might be interested to consider the possibilities of this other method of perforation. Yours faithfully, FOR ROLLS-ROYCE LIMITED. Samples enclosed. | ||
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).