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).
Lucas Generator trouble due to melting solder on the commutator and a suggestion to improve ventilation.
| Identifier | WestWitteringFiles\I\May1922\ Scan95 | |
| Date | 1st December 1922 | |
| R.R. 198 (500 H) (SD. 298. 15.8.17) M.P. 376549. To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} C. to C.J. C. to E.{Mr Elliott - Chief Engineer} C. to Da.{Bernard Day - Chassis Design} C. to EY. Handwritten Note Top: Why not Ventilate the dynamo to prevent it. overheating & throwing solder from comms. Hs{Lord Ernest Hives - Chair} B. Stamp: ORIGINAL Hs{Lord Ernest Hives - Chair}7/LGSB.D.22. DYNAMO COMMUTATOR. X4383 X4383 The Lucas Generator which we have fitted to one of the early Goshawk cars has given trouble on several occasions with the solder fixing the wires to the commutator bars melting, the wires flying out. Although we have not seen any signs of the solder melting on the RR Generators, one would expect that there is very little margin. From the tests we have been able to carry out, we believe that the trouble with the solder melting was greatly improved if we run without the cover. off the commutator. It might be worth while trying some ventilation in the end cover. Handwritten Note Bottom: The simple commonsense approach again. Ventilated dynamos didn't come until mid '30s? but an unventilated one would today be unthinkable! HS.{Lord Ernest Hives - Chair} | ||