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).
Description of the internal construction of a battery cell, detailing the number and dimensions of positive and negative plates.
| Identifier | ExFiles\Box 164\4\ img013 | |
| Date | 19th February 1931 guessed | |
| 2 J.D.119. Internal construction of cell 13 plates of a thin type are used combined with thin wood & ebonite separators. This is to enable the maximum capacity to be obtained in the minimum of space. Positive Plates No of plates 6 Active surface per plate 5.4" x 4.5" Thickness .092" Negative plates. No of plates 7 Active surface per plate 5.4" x 4.5" These plates are much thinner than our Std. & being more in number i.e. 13 instead of 11. The thinner plate is more easily buckled & will not retain the paste so effectively particularly with the type of grid used having the apices of the grid bars facing outward. Two feet are provided on each plate (cont-d) | ||