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).
Future standards for bonnet ventilators, specifically the transition from sliding to flap type shutters.
| Identifier | ExFiles\Box 119\3\ scan0137 | |
| Date | 8th July 1931 | |
| Hs{Lord Ernest Hives - Chair} J1085. To Wor.{Arthur Wormald - General Works Manager} from Sg.{Arthur F. Sidgreaves - MD} re Bonnet Ventilators. Sg{Arthur F. Sidgreaves - MD}7/E8.7.31 Copy to Cr.{Mr Cra???ster / Mr Chichester} Hs.{Lord Ernest Hives - Chair} Thanks for Wor{Arthur Wormald - General Works Manager}6/GR.{George Ratcliffe}7.7.31 together with memo. from Hs.{Lord Ernest Hives - Chair} I take it that, so far as future standards are concerned, the position really is that the flap type shutters will merely take the place of the sliding type shutters. In other words louvred bonnets will still continue to be fitted to chassis for the countries for which they are at present standard. Sg.{Arthur F. Sidgreaves - MD} SH RECEIVED 10 JUL 1931 | ||