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).
With a diagram discussing carburettor percolation and automatic chokes.
| Identifier | ExFiles\Box 173\4\ img191 | |
| Date | 7th December 1935 guessed | |
| HOTELS NEW YORKER & LEXINGTON, NEW YORK • NETHERLAND PLAZA, CINCINNATI • ADOLPHUS, DALLAS • VAN CLEVE, DAYTON Book-Cadillac Hotel DETROIT Ralph Hitz (RH{R. Hollingworth}) President 2. Measurement of the carburettor & various parts of a down draught carb after the same had been fitted some as affects matter of S/F is troublesome. Percolation only A exceeds B. [Diagram with labels A, B, 130, 300] They have therefore jacketed the choke & part pilot through this on its way to the float chamber, thereby lowering the temperature of the choke and increasing its solubility in the float chamber. This they say solves the problem but is not yet on the market. As regards automatic chokes they do not consider the 'Clerkal' unit much superior to the Exhaust heated type & add that neither of them has been arranged for a manifold having | ||