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).
The temperature at which a dynamo's carcase corresponds to the melting point of commutator solder.
| Identifier | WestWitteringFiles\K\September1923\ Scan82 | |
| Date | 28th September 1923 | |
| Contd. -3- EFC5/T28.9.23. + With the dynamo mounted normally on the cast iron rig, it is found that a carcase temperature of about 82°C corresponds to a commutator temperature on the point of melting the solder. EFC. | ||