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).
Suggestion for modifications to a Damper Release Valve following a trial.
| Identifier | ExFiles\Box 179b\1\ img202 | |
| Date | 12th December 1932 | |
| HS{Lord Ernest Hives - Chair}/RM.{William Robotham - Chief Engineer} FROM HDY.{William Hardy} ORIGINAL. HY{Tom Haldenby - Plant Engineer}2/M2.12.32. DAMPER RELEASE VALVE. X235 With reference to N. scn. 3593., we suggest that after trial with a plug drilled with three .125 release holes as shewn, extra holes should be drilled, also near the top of the piece, to determine whether there is noticeable restriction from the three holes. RECEIVED DEC 5 1932 HDY.{William Hardy} | ||