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).
Technical review and critique of a Lucas battery's design and features, with a sketch and dimensions.
| Identifier | ExFiles\Box 35\1\ scan 114 | |
| Date | 5th February 1919 | |
| R.R. 235A (500 T) (S.D. 408. 28-4-17.) Bm. 2/158/13. -2- EFC1/T5.2.19. Contd. in the hollows in the cones. We think brass on the terminals should be avoided. The filling holes of the cells are too small to allow of easy filling, particularly in the cell where it is placed immediately over one of the leaden bars carrying plates. There is very little clearance between the hole and the top of this bar, so that it is quite impossible to insert the rubber tube of a syringe hydrometer, also it is very difficult to empty. The vents themselves are of celluloid, and although the design seems good from the point of view of preventing the acid spraying, we think they might easily get broken if left about. A good point about the battery is that it is provided all round its outer edge with a high celluloid wall, so that if any acid is spilt on the top of the battery during the filling process, or at other time, this cannot possibly run down the outside of the battery and get at the box. The box itself, as received, is not enamelled on the outside, and the battery does not give a general appearance of good finish. The battery as it stands in the box is too low down to allow the acid level to be seen; moreover, the acid level cannot be seen by taking out the vents, hence to ascertain this, the battery must be taken out of the box. LUCAS BATTERY. 2. Lucas 126 O S/r This battery is a duo-block, each block comprising three cells divided by the central, longitudinal, vertical plane. The plan of the battery being as sketched herewith:- Weight 94 lbs. Overall length 16.75 in Breadth 8.5 " Height 11.5 " | ||