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).
Diagrammatic sketch of an anti-spill valve in a radiator top tank.
| Identifier | ExFiles\Box 87\1\ scan0130 | |
| Date | 4th January 1935 guessed | |
| HS.{Lord Ernest Hives - Chair} 1633. ESCAPE PIPE. THIS VALVE MAY EITHER BE CONTROLLED BY A CORRUGATED PRESSURE DISC AS SHOWN, OR BY A DISC OF SIMILAR SIZE SPRING LOADED WITH A HELICAL SPRING. TO FILLER. REAR FACE OF TOP TANK. DIAGRAMMATIC SKETCH OF RADIATOR. ANTI-SPILL VALVE IN TOP TANK. | ||