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).
Dimensioned drawing for a high-pressure valve for assembly Hs 1170.
| Identifier | ExFiles\Box 151\2\ scan0106 | |
| Date | 17th October 1933 | |
| Hs. {Lord Ernest Hives - Chair} 1171 .1875 + 1/2 DIA .437 - 1/2 DIA IMPORTANT DIA'S 15° UNDERCUT .430 DIA .050 WIDE. H. {Arthur M. Hanbury - Head Complaints} P. VALVE FOR Hs {Lord Ernest Hives - Chair} 1170 .725 .312 DIA .650 DIA 15° .075 BZ/PC LeB 17.10.33 | ||