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).
Photographic comparison of gear scoring after testing with low EP lubricant versus a deteriorated lead soap lubricant.
Identifier | ExFiles\Box 114\1\ scan0099 | |
Date | 11th January 1937 guessed | |
Fig. 15 SHOWING LIGHT SCORE AFTER TESTING WITH LOW EP{G. Eric Platford - Chief Quality Engineer} LUBRICANT Fig. 16 SHOWING HEAVY SCORE AFTER TEST WITH LEAD SOAP LUBRICANT THAT HAD DETERIORATED AFTER STANDING | ||