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).
Instability of a battery box in the 40/50 HP chassis and Mr. Royce's proposed modifications.
| Identifier | WestWitteringFiles\D\November1919\ Scan13 | |
| Date | 20th November 1919 | |
| To DR. from E.{Mr Elliott - Chief Engineer} Copy to Ser. " " DR's " " EFC. ORIGINAL. RE 40/50 H.P. CHASSIS. BATTERY BOX IN FRAME. Referring to your schemes of the above, would you kindly note that the shorter battery (American standard) is considered too deep with relation to the base sideways, so that it will tend to be unstable. Mr. Royce considers therefore that we should use four clamping bolts instead of three, and risk any torsion that might be put on by the frame. In doing this we avoid torsion that the battery might put on itself, due to being controlled only at one end. The LeC. drawing we sent to you, so far as we remember, shewed the small model of the Willard battery, which appeared to go in between the two members, and had not much depth. Mr. Royce would like to know why our starting and lighting batteries have got larger than the Willards we used to use. He further asks if the Tudor is equally as large as the Exide. It is noted that the cells of the battery are shewn directly within the wooden box, with only a thin lining intervening. We assume that the box is sent to the battery maker to have the cells filled in with bitumen. In accordance with Mr. Royce's wishes, would you kindly alter the scheme as follows:- (1) Drop the clamping surfaces on the rear box bracket to the same level as that on the front bracket, so as to get uniform height for the faces controlling the box. (Contd.) | ||