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).
Hand-drawn sketch and description of a recording instrument.
| Identifier | ExFiles\Box 138\2\ scan0002 | |
| Date | 13th February 1924 guessed | |
| 7 a Feed 1/2" to 3" / PER SEC DRIVEN BY LIGHTLY LOADED SLIPPING CLUTCH CAPABLE OF RECORDING UP TO 30 PER SEC WITH NO LAG MAKE AND BRAKE Rough indication of the type of instrument we had in mind, giving of course, no indication of compactness, etc. | ||