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).
Testing a Tecalemit filter on the suction side of a pump for production units.
| Identifier | ExFiles\Box 135\3\ scan0190 | |
| Date | 21th December 1937 guessed | |
| Rm.{William Robotham - Chief Engineer} 1139 Production Unit Test Tecalemit Filter is housed on suction side of pump. Is used in place of the normal external suction pipe between pump & sump. Is OK other than not catering for a dirty pump & pipe. Would feel more confident about cleanliness of engines if Tecalemit filter were used throughout the testing of the units in the works even including De Laval a road test etc as per Byr's memo. This could be part of unit as Ph III & taken off on final run on road. Rm{William Robotham - Chief Engineer}/SWDL{Len H. Swindell} | ||