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).
Responding to a query about the use of ebonite versus wooden battery plate separators.
| Identifier | ExFiles\Box 54\5\ Scan002 | |
| Date | 20th October 1919 | |
| X.664 X4655 To Bn. {W.O. Bentley / Mr Barrington} from EFC. {E. Fowler Clarke - Electrical Engineer} EFC {E. Fowler Clarke - Electrical Engineer} 3/T20.10.19. RE BATTERY PLATE SEPARATORS X.664. X.607. In answer to your Bn {W.O. Bentley / Mr Barrington} 31/W15.10.19, we have not much experience of ebonite separators but we imagine that they ought to be very satisfactory judging from experience with ebonite containers. They are probably much more expensive to manufacture than wood or celluloid separators. In our present standard battery thin wood separators are used. Although wooden separators generally make for high internal resistance, the Chloride Company seem to have some way of treating these separators by means of which this internal resistance is reduced to a minimum. At any rate the resistance is surprisingly small as compared with that of other batteries also using wooden separators. EFC. {E. Fowler Clarke - Electrical Engineer} | ||