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).
Laboratory report on the chemical analysis of an oxide scum from a carburettor.
| Identifier | ExFiles\Box 76\3\ scan0017 | |
| Date | 3rd August 1917 | |
| ROLLS-ROYCE, LIMITED. LABORATORY REPORT. L 380 To Mr Wormald Mr Hives Date 3rd Aug 1917 Re Oxide Scum from carburettor laboratory on 31st July This was nearly white in tint - consisted of a fine light powder. Analysis - Silica 0.85 % Carbonaceous matter .12 % (traces) Alumina 82.0 % Copper Oxide 3.8 % Zinc Oxide 13.1 % Iron 0.32 % 100.19 This is higher in copper + zinc than carburettor body alum alloy - It appears that this alloy is unstable on the surface Signature HCS | ||