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).
Design and testing of battery boxes for various car models.
| Identifier | WestWitteringFiles\V\March1931-September1931\ Scan352 | |
| Date | 15th August 1931 | |
| HS.{Lord Ernest Hives - Chair} FROM DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} C. to SG.{Arthur F. Sidgreaves - MD} BY.{R.W. Bailey - Chief Engineer} ORIGINAL BATTERY BOXES. DA{Bernard Day - Chassis Design}/EV{Ivan Evernden - coachwork}1/M15.8.31. X6055 We understand that the battery box which failed on the 10,000 miles test of 25-EX. had a single front fixing as at present standard, and a tubular cantilever support at the rear, which were the 2 brackets controlling the battery. This scheme has been tested before and found unsatisfactory and was condemned by R.{Sir Henry Royce} when in France last winter. In May of this year we sent you N. sch. 3278. shewing a sheet metal battery box having two fixings on the chassis cross member in front, and a sheet metal cantilever at the rear as requested by R.{Sir Henry Royce} This constitutes our latest recommendations and we have been waiting for the test of such a scheme on the 20HP.. Should such a suspension prove satisfactory we should immediately give you a corresponding design for the 40/50. We therefore hope you will arrange to test N. sch. 3278. as soon as possible, and we have already suggested that it should be one of the features for the chassis which you are building having a sports saloon body, and which is a model for 'U' series. We have pointed out that this sheet metal battery box and the standard battery bought from stock will effect a considerable saving in cost, while the sheet metal cross member at the front end of the battery enables the floor to be lowered about 1" without any excrescences on the floor. While we would like this battery suspension fitted to this car we think it could be tested on the bump rig on an existing car straight away. DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} | ||