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).
Diagram showing a modification to the thermostat top plate assembly to prevent leakage.
| Identifier | ExFiles\Box 156\1\ scan0260 | |
| Date | 17th September 1937 | |
| SWEATED FAILED HERE OLD CONSTRUCTION BELLOWS PLATE FILLED WITH SOLDER NEW CONSTRUCTION INCREASED 'TURN OVER' DIAGRAM SHOWING MODIFICATION TO THERMOSTAT TOP PLATE ASSEMBLY, TO PREVENT LEAKAGE IN SERVICE (DEVELOPED BY VAUXHALL MOTORS LTD.) 17 9 37 | ||