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).
Laboratory report from Price's Patent Candle Company comparing the properties of various oils.
| Identifier | ExFiles\Box 144\1\ scan0018 | |
| Date | 30th August 1911 | |
| Price's Patent Candle Company Limited. N.c TWO. 30/8/11. Copy of Belmont Laboratory Report re | | Vacuum Engine Oil. | Vacuum Gear Oil. | Battersea Gear Oil A.{Mr Adams} | Battersea Gear Oil B. | Motorine B. | |---|---|---|---|---|---| | Sp.{Mr Spinney} Gr.{George Ratcliffe} @ 60°F | 893 | 897 | 915 | 935 | 896 | | Viscosity @ 60°F.{Mr Friese}(Redwood) | 4939 | 9100 | - | - | - | | .. @ 130°F | - | 478 | 3243 | 2318 | 398 | | .. @ 212°F | 84 | - | - | - | - | | Flash Point (Close)..°F | 395 | 420 | 285 | 520 | 435 | | .. (open) | 430 | 455 | 335 | 570 | 480 | | Fire Test.....°F | 480 | 535 | 370 | 626 | 560 | | Evaporation on exposure for 1 Hour @ 370°F | 3.38% | 1.55% | 14.85% | 0.4% | 1.4% | | Free Fatty Acids % | 9.13 | 0.084 | 1.13 | 0.34 | 0.22 | | Water | NIL | NIL | NIL | NIL | NIL | [Handwritten] JC/ Messrs Rolls Royce Ltd., Nightingale Road, D E R B Y. [Stamp] RECEIVED 31 AUG 1911 | ||