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).
Continuation letter from The Cambridge and Paul Instrument Company discussing instrument practicalities like ink drying and electro-magnetic lag.
| Identifier | ExFiles\Box 138\2\ scan0007 | |
| Date | 27th February 1924 guessed | |
| 74630 Continuation Sheet No......1 THE CAMBRIDGE AND PAUL INSTRUMENT COMPANY, LIMITED. Messrs. Rolls-Royce Ltd., (Continued) -------------------------- refilling is necessary it is very readily done. There may, however, be a slight objection to the rolling up of the paper film on to a second roller, as the ink used for records of this nature is necessarily a slow drying ink and tends to smudge unless allowed a few minutes to dry. Electro-magnetic lag. Since your time intervals are very small we think any lag must be practically negligible. We should say that all chronographs are tested to give a record from a 100 per second tuning fork, and that therefore any errors due to lag would be something considerably less than this, and in any case the lag would be constant on each of the three electro-magnets. Yours faithfully, For THE CAMBRIDGE AND PAUL INSTRUMENT Co. LTD. W.G. Collins Director & Works Manager. | ||