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).
Further note describing a method for observing the functioning of gears using a hole cut in the gear case.
| Identifier | WestWitteringFiles\T\November1928\ Scan083 | |
| Date | 11th February 1928 | |
| Contd. -5- EFCL/11.2.28. Further note. The functioning of the gears was readily observed by means of a hole that had been cut in the gear case on the underside, a pea lamp suitably supported with shield, and a mirror. Three persons could view the operation simultaneously. EFC. | ||