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 on the modification of a control brush holder by thinning it down to retard the new brush's centre line.
| Identifier | ExFiles\Box 51\1\ Scan063 | |
| Date | 25th April 1922 guessed | |
| -3- Contd. N.B. Thinning down the control brush holder should be carried out in such a way that the new centre line of the new brush is retarded as compared with the centre line of the old brush by an amount equal to 1/4 of the thickness of the old brush. This is equivalent to using the more retarded half of the present brush. Then with a similar range of adjustment as we have at present, we shall have a suitable range for adjusting purposes. EFC. | ||