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).
Instructions comparing a Type 2D Smith Dynamo to a Type A machine, noting differences in brush material.
| Identifier | ExFiles\Box 3\5\ 05-page148 | |
| Date | 14th July 1920 | |
| ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Clark Order No: X.295. Customer's No: 19 Smith Dynamo (Type 2D) The dimensions of this dynamo are the same as the type A dynamo but we have already made some tests. The brush material is not the same as that on the type A machine, on this dynamo the brushes are EG3 Morganite. The comm. of this new machine is a great improvement on the (Cont-d) Signed This Sheet must be filed on completion of the work. | ||