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).
Continuation of notes on the design features of a ribbed bulb and a float with glass prongs.
| Identifier | ExFiles\Box 44\5\ Scan062 | |
| Date | 28th August 1923 guessed | |
| Contd. JB.16. (5) The bulb is ribbed to prevent rolling and need only be compressed slightly to get sufficient acid for a reading. (6) Glass prongs are fitted to the float to prevent it from sticking, but when used, it was found to lean on one side and stick at the top, by this it seems that prongs are necessary at the top of the float as well as those which are already fitted. GJ. | ||