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).
Deepening the slots on dynamo brush holders to increase brush life.
| Identifier | ExFiles\Box 166\1\ img101 | |
| Date | 24th May 1937 | |
| To By/RD. 6093 Rm{William Robotham - Chief Engineer}/Wst.9/JH.24.5.37 Dynamo Brush Holders. We have noticed on our 10,000 miles test cars, where we experience excessive brush wear that the brushes have to be replaced long before they are actually worn out, due to the fact that the spring touches the bottom of the slot in the brush holder. Could not these slots be made a little deeper in order to get more life out of the brush. Rm{William Robotham - Chief Engineer}/Wst. | ||