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 of a cantilever-style battery support.
| Identifier | WestWitteringFiles\V\October1930-February1931\ Scan145 | |
| Date | 15th December 1930 | |
| DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork}) FROM R.{Sir Henry Royce} BY.{R.W. Bailey - Chief Engineer} ) (At Le CanadelHenry Royce's French residence.) HS.{Lord Ernest Hives - Chair} ) C. to SG.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} ORIGINAL H.{Arthur M. Hanbury - Head Complaints} Grylls RECEIVED 18 DEC 1930 R2/M15.12.30. x753S P. 2. BATTERY SUPPORT I understand from DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} that the rear battery support cannot go right across the frame unless the floor of the car is raised more than 1" - i.e. the tube, and an extra allowance for another clearance. If this is so we must persevere with the cantilever type from the frame, which I understand is satisfactory on EAC. 7. This suggests a 3 point support, 2 forward and 1 at the rear, and also the fore and aft control by the front supports. Therefore the rear will be asked to do nothing but support half the weight of the battery - i.e. swivel and flex every way but vertical. I suggest sheet steel cantilever with angle (short) top and bottom to fasten to frame, perhaps both sides at top and one at bottom on the side which gives the more convenient (and efficient) fixing. If the bolt between the box and the bracket can swivel the unavoidable torsional deflection of the frame should not do any harm. (See sketch attached herewith.) R.{Sir Henry Royce} (Sheet 1.) | ||