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).
Provisional British patent suggestions for two different carburetter designs.
| Identifier | WestWitteringFiles\R\October1927-December1927\ Scan069 | |
| Date | 29th October 1927 | |
| BY.{R.W. Bailey - Chief Engineer} FROM R.{Sir Henry Royce} C. to DL. HS.{Lord Ernest Hives - Chair} ORIGINAL. R1/M29.10.27. NEW PROVISIONAL PATENTS. BRITISH. CARBURETTERS. X8082 Y728 E.{Mr Elliott - Chief Engineer} suggests that an expanding carburetter of any type could be coupled to the centrifugal governor - i.e. in our case to the auto: advance relay, which depends on increase of speed for opening out the carburetter. R.{Sir Henry Royce} suggests a restrictor in the venturi of a straight through carburetter, to be drawn downwards or backwards by an air vessel depending upon the depression in the carburetter, or other automatic or manual means. R.{Sir Henry Royce} | ||