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 regarding sticking control brushes due to insufficient clearance and the accumulation of oil and carbon dust.
| Identifier | ExFiles\Box 62\3\ scan0147 | |
| Date | 26th January 1931 guessed | |
| RR 236 (150 BKS.) (DB{Donald Bastow - Suspensions} 431-8 12 24) MP 306975 ROLLS-ROYCE, LTD. INSTRUCTIONS. To. Order No. PD.58. (7) Customer's No. have been traced to control brushes sticking in their holders. In most cases it has been due to insufficient clearance in the first instance between brush and holder, together with an accumulation of a sticky mixture of oil and carbon dust. The clearance specified is .002" to .009", and so far this has been found sufficient to enable the spring to control the brush, with the latter in a normally sticky condition. Signed C.A.P. This Sheet must be filed on completion of the work. | ||