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).
The procedure and timeframe for testing a cleaner using a suction blower.
| Identifier | ExFiles\Box 159\6\ scan0086 | |
| Date | 25th August 1940 | |
| Rm{William Robotham - Chief Engineer}/GB.1/ET.25.8.40 - 4 - A suction blower will be set up on the H.R. machine and air will be drawn from the shop through the cleaner. If shop air turns out to be too clean, a means of producing dust laden air will be devised. It is estimated that tests on a cleaner will take from 2 or 3 days to as many weeks (assuming that shop air is used). Rm{William Robotham - Chief Engineer}/GB. | ||