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).
Half-size scale blueprint of a Venturi Breather for a crankcase.
| Identifier | ExFiles\Box 132\3\ scan0110 | |
| Date | 14th September 1938 guessed | |
| VENTURI BREATHER., SCALE. HALF-SIZE., AIR-STREAM., TO CRANKCASE., CUT AWAY TO SHOW PERFORATED PIPE., 1.00" DIA., 1.875 DIA., 5.00", 1.200", 3.000 DIA., 3.00" DIA., 1.875" DIA., 7 | ||