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).
Battery design modifications to prevent acid spray, including a discussion with the supplier Peto & Radford.
| Identifier | ExFiles\Box 38\5\ Scan035 | |
| Date | 10th April 1919 | |
| R.R. 235a (500 T) (S.D. 406. 26-4-17.) Bm. 2/156/13. -4- E C4/T10.4.19. Contd. so that separate cells cannot be removed. Sketch plan arrangement of this battery as below:- The main terminals are deep lead covered nuts and all the other connections are well enamelled. The vent plugs of ebonite are of good large diameter and screwed; although these vent plugs have funnel-like openings so as to catch acid spray as much as possible, and allow the acid to run back into the cells, we do not find these are effective in preventing the acid spraying over the top of the battery during charge. Filling and density readings are very easy. We had Mr. Minchin of the Peto & Radford Company here yesterday, and we discussed with him the points that were desirable in such a lighting and starting battery as we require. We left it with him that they would send us another ebonite battery of 60 ampere hour capacity in which such points should be incorporated. He said they would be willing to make up a battery to suit our requirements. We are asking the for this battery to be fitted with short lengths of cable which are burnt on to the main terminals of the battery and brought to the outside of the battery case, and battery box, so that all connections and disconnections will be made at a place which is not subject to acid spray, that is to say, we are asking for | ||