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).
Performance and failure analysis of a Peto & Radford battery after extensive testing.
| Identifier | WestWitteringFiles\Q\February1927-March1927\ 29 | |
| Date | 6th February 1927 | |
| To R.{Sir Henry Royce} from EFC. c. BJ. PN.{Mr Northey} c. E.{Mr Elliott - Chief Engineer} DeA. c. Ry. Roy.{Sir Henry Royce} c. Wor.{Arthur Wormald - General Works Manager} XP4414? PETO & RADFORD BATTERY. We attach copies of reports JC.69/72/73, referring to a special battery of 20 HP. size sent to us for test by Messrs. Peto & Radford. We consider that in view of the intensive treatment to which this battery has been subjected its general performance has been remarkably good. Incidentally this battery was made up in a one-piece multi-compartment Dagenite container, which however only failed at the time the elements failed, by bulging and cracking, as described in the reports. Perhaps the particular point of remark about this battery is the fact that the elements have remained satisfactorily separated until such time as the battery has failed by short-circuiting due to sediment, a fact which has justified Messrs. P & R.{Sir Henry Royce} in their increase of the space below the plates to the maximum possible amount. It will be noted that the capacity of the battery remained up at a good value until its ultimate failure in another respect. The battery may perhaps be considered to have done the equivalent of 35,000 miles on the road. Although the ebonite separators were worn through fairly completely, it appears that their presence has enabled the wood separators effectively to maintain separation of the plates until the last moment. EFC. | ||