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).
List of suggested alterations for the 'SS' carburetter.
| Identifier | ExFiles\Box 13\3\ 03-page060 | |
| Date | 15th November 1928 | |
| Hs.{Lord Ernest Hives - Chair} from E.{Mr Elliott - Chief Engineer} c. to BJ. BY.{R.W. Bailey - Chief Engineer} X.7080 E1/M15.11.28. 'SS{S. Smith}' CARBURETTER. With further reference to R2/M10.11.28., the alter-ations suggested by R.{Sir Henry Royce} enumerated are as follow : (1) Turn .1 off the top of the air valve piston, thereby increasing the stroke from 1" to 1.1" (2) Shorten the tulip restrictor guide and tulip restrictor .2 to accommodate the increased stroke, and to lower the initial position of the restrictor .1". (3) Increase the diameter of the throat by .1". (4) Alter the existing restrictor by flattening the curve on the upper half of the tulip, thereby increasing the throat area in the fully open position. E.{Mr Elliott - Chief Engineer} | ||