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).
Letter from The Cambridge and Paul Instrument Company regarding a laboratory 3-pen chronograph as a space-time recorder.
| Identifier | ExFiles\Box 138\2\ scan0004 | |
| Date | 22th February 1924 | |
| TELEGRAMS: INSTRUMENT, CAMBRIDGE. Codes: A.B.C. (5TH AND 6TH EDITIONS); WESTERN UNION; BENTLEY'S. TELEPHONE: CAMBRIDGE NO. 615. +4630 THE CAMBRIDGE AND PAUL INSTRUMENT COMPANY, LIMITED, INCORPORATING THE CAMBRIDGE SCIENTIFIC INSTRUMENT CO., LTD., CAMBRIDGE. AND ROBT. W. PAUL, LONDON. HEAD OFFICE AND SHOWROOMS: 45, GROSVENOR PLACE, LONDON, S.W.1. WORKS: LONDON AND CAMBRIDGE. YOUR REF........... Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}1/LG. CAMBRIDGE, ENGLAND. IN REPLY PLEASE QUOTE........... WGC/MW 22nd February 1924. Messrs. Rolls-Royce Ltd., Nightingale Road, Derby. Dear Sir, For the attention of Mr. Robotham. Space-time Recorder. With further reference to your letter of the 12th instant, we think that our standard instrument, the laboratory 3-pen chronograph, together with a suitable time marking device, will be almost perfectly in accord with your specification. This chronograph consists of three electro-magnetically operated pens, each on separate circuits. One of these pens would be operated by the 1/10th sec. time marker and the other by the wheel contacts, and if you specially desire it, one-second intervals could be marked by the third pen. We enclose a sample record actually taken on one of these instruments in which the time marking is in approximately 1/2-second intervals. If this is the kind of record that you require we will on hearing from you submit a quotation for the chronograph with 1/10th sec. time marker. Yours faithfully, For THE CAMBRIDGE AND PAUL INSTRUMENT Co. LTD. W. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} Collins Director & Works Manager. | ||