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).
Latest improvements in Tudor and British Exide batteries.
| Identifier | ExFiles\Box 49\5\ Scan266 | |
| Date | 17th March 1921 | |
| X.4288 EFC {E. Fowler Clarke - Electrical Engineer} 3/17.3.21. To R & E. {Mr Elliott - Chief Engineer} from EFC. {E. Fowler Clarke - Electrical Engineer} c. to CJ. & PN. {Mr Northey} c. to Hy. {Tom Haldenby - Plant Engineer} & Dn. c. to De. & EF. c. to WML. for R.H. Inc. X.664 - BATTERIES. Further to our EFC {E. Fowler Clarke - Electrical Engineer} 7/T18.2.21 and with further reference to your R4/G11.2.21, we are sending down to you with Mr. Hives on 6 EX, one each of the very latest cells of Tudor and British Exide make. We have ourselves dismantled another cell similar to each of these for examination. These cells differ from previous examples of the same make in the following respects, and these modifications being by mutual arrangement between ourselves and the battery Coy. concerned. Exide Battery. This battery has the following improvements as compared with our present standard, which, you may remember, already has perforated ebonite sheets between the positive plates and the wood separators, kinked flexible connectors, also central stay bolt and packing pieces to offer better lateral support to individual cells. 1. The positive and negative sets of plates are provided with two rows of feet each, making four lines of feet in all, these corresponding to four supporting bridges in the bottom of the ebonite case, so that the positive and negative elements are individually supported. 2) The ebonite separators between the positive plates and wooden separators, which were previously punched with circular holes, are now perforated with numerous horizontal slits, this being considered by the Chloride Co. to be an improvement, giving presumably a greater total area of cross sections of electrolyte through the perforations. Contd. | ||