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).
Proposal to experiment with using transformer oil instead of wax for filling ignition coils to exclude air.
| Identifier | ExFiles\Box 61\1\ scan0294 | |
| Date | 22th April 1936 | |
| 86110. To E.{Mr Elliott - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Wst. c. to BY.{R.W. Bailey - Chief Engineer} c. to Sft.{Mr Swift}/Mr. Brook. EXCLUSION OF AIR IN IGNITION COILS. The practical difficulties of handling and using "SEEKAY" Wax for the purpose of filling our ignition coils when fitted in their cases would appear to rule out its use and the advantages gained electrically. We propose trying an experiment of filling the ignition coil with pure transformer oil as used in high tension transformers and sealing off the top of the coil so that it is oil tight. If this is successful it will probably be the solution to our difficulties with the exclusion of air in our coils. Hs{Lord Ernest Hives - Chair}/H.E.West. | ||