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).
Test report on stainless steel contact points for battery ignition.
| Identifier | ExFiles\Box 32\5\ Scan083 | |
| Date | 2nd November 1928 | |
| X. 7690 2.11 28 STAINLESS STEEL CONTACT POINTS FOR BATTERY IGNITION. We have tested these points on the bench and we consider them to be out of the question for our use. Misfiring of the H.T. sparks was continuous and the points arced very badly, depositing black carbon dust over the contact breaker. The points ran only 10 hours on the bench but they had worn down considerably. HEW. | ||