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).
Modifications to a Disc and a Plug, including changes to dimensions and materials.
| Identifier | ExFiles\Box 148\5\ scan0156 | |
| Date | 26th April 1937 guessed | |
| (2) G.76741. Disc. Reduce thickness to 22 SWG (.028) and increase limit to -.004 on outside diameter so that the piece can be as sheared from sheet. G.76742. Plug. Make of S/M.{Mr Moon / Mr Moore} These modifications should be brought on when it is convenient to make the change. In the case of F.87392 a pattern alteration is necessary to the body of the unit. We have made a few alterations in addition to the use of hexagon bar in the case of the valve body as shown by N.Sch.5096. These alterations are all applicable to the damper units of the other cars. E/HDY.{William Hardy} | ||