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).
Requesting the production of two sets of dynamo pulleys with specific dimensions and material requirements.
| Identifier | ExFiles\Box 135\4\ scan0028 | |
| Date | 25th May 1939 | |
| -2- Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards}17/JH.25.5.39. Dynamo. 3.75" diam. Pulley angle 26°, top width .625". Depth .450". We should be glad if you would draw out 2 sets of pulleys to the above dimensions, one set to be in the hardest alum which can be used for die casting and the other set in 1/C. We also suggest that the sides of the pulleys be increased in height by, say, .050" in order that there shall be no fear of the belts riding high in the pulley. We should like you to get these parts instructed as quickly as possible as we shall want to fit them to 4.B.50 before this goes to France. Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards} | ||