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).
Protective coatings and materials for a battery box stirrup to resist acid.
| Identifier | WestWitteringFiles\D\November1919\ Scan32 | |
| Date | 29th November 1919 | |
| TO CK.{Mr Clark} & HL. from E.{Mr Elliott - Chief Engineer} -2- El/G29/11/19 Contd. It is thought that the lead will in time squeeze out on the contact face of the stirrup where pressure is applied by the hook on the battery box, but even if the covering is squeezed through at this point it will be far better than having no protective coating at all. It is, however, possible that the road mud and dirt may neutralise any acid which creeps over on to the suspension fittings of the box. If aluminium is very good for resisting the action of the acid, then a cast aluminium stirrup might be used tapped out to receive the tension rod. E.{Mr Elliott - Chief Engineer} [Signature] | ||