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).
Cross-section diagram of a Ricardo patent cylinder head.
| Identifier | Morton\M19\ img043 | |
| Date | 19th March 1931 | |
| RICARDO PATENT CYL. HEAD. LARGE INLET VALVE SPARK PLUG IN CR{Mr Cra???ster / Mr Chichester} OF HEAD CLCE BETWEEN PISTON & HEAD ONLY THICKNESS OF GASKET SMALLER EXH VALVE ROYCE LTD EXPT ROOM, 19 MAR 31 DERBY | ||