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).
The benefits of greasing electrical switches with vaseline to prevent oxidation.
| Identifier | WestWitteringFiles\D\March1920\ Scan10 | |
| Date | 10th March 1920 | |
| To CK.{Mr Clark} from R.{Sir Henry Royce} Copy to CU. " " BN.{W.O. Bentley / Mr Barrington} " " HS.{Lord Ernest Hives - Chair} " " HM.{Capt. W. Hallam - Head Repairs} " " PN.{Mr Northey} " " H.{Arthur M. Hanbury - Head Complaints} " " Royce Ltd. ORIGINAL 2 R2/G8/3/20. 10 MAR 1920 X.805. RE ELECTRICAL SWITCHES. Thoroughly grease all electrical switches. It is often thought that grease may prevent a switch making contact, it actually makes better contact if greased, as it prevents oxidation by atmosphere. It also works so vastly better mechanically. The small size switches in the West WitteringHenry Royce's home town drawing offices would have been a failure but for the practice of thoroughly greasing them with vaseline. R.{Sir Henry Royce} | ||