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).
Brochure for Cambridge Recording Accelerometers (Collins' Patent), detailing typical test records and device specifications.
| Identifier | ExFiles\Box 53\1\ Scan187 | |
| Date | 12th September 1932 | |
| TYPICAL RECORDS. Photographically Enlarged. Fig. 18. Record showing the vertical accelerations of a passenger lift travelling in an upward direction. The acceleration at the start, A, is clearly shown, followed by a short run at uniform speed (no acceleration), and the deceleration, D, as the lift stops. A vertical displacement of 30 mm. on the enlarged record represents an acceleration equal to “g.{Mr Griffiths - Chief Accountant / Mr Gnapp}” (Magnification 9 linear). Fig. 19. Record showing the vertical accelerations of a passenger lift travelling in a downward direction. A vertical displacement of 30 millimetres on the enlarged record represents an acceleration equal to “g.{Mr Griffiths - Chief Accountant / Mr Gnapp}” (Magnification 9 linear). Fig. 20. Record taken with the double accelerometer (Fig. 4), showing simultaneous (a) lateral and (b) vertical accelerations of an articulated first class Brake (L.N.E.R.) running on standard compound bolster bogies, at a speed of 68 m.p.h. The instrument was placed in the compartment adjacent to the articulated coupling. The entire record gives the 0·1 second time marking. (Magnification 10 linear). Cat. No. Fig. No. 32321 2, 3 Recording Accelerometer, Standard Pattern. 32322 4 Ditto, Double Pattern. 32323 6 Combined Accelerometer and Air Speed Recorder. 34921 7 Enlarging Camera. 34992 8 Microscope. 31615 - 0·1 Second Time Marker. 8 S. 5000 6-26 Hs{Lord Ernest Hives - Chair} (Refr. Roy{Sir Henry Royce} 61/12, Ep{G. Eric Platford - Chief Quality Engineer} 12-9-32). 74564 List No. 149. CAMBRIDGE RECORDING ACCELEROMETERS (Collins' Patent) Fig. 1. 9 x 5 x 8 inches. CAMBRIDGE INSTRUMENT COMPANY, LTD. Head Office and Showrooms: 45, GROSVENOR PLACE, LONDON, S.W.1 Telegrams: “UNIPivot, SOWEST, LONDON.” Telephone: VICTORIA 7640 (3 lines) Works: LONDON AND CAMBRIDGE Branch Offices: LIVERPOOL, MANCHESTER, BIRMINGHAM, CARDIFF, GLASGOW, NEWCASTLE, SHEFFIELD, PARIS, NEW YORK, BRUSSELS, TORONTO, TOKYO, OTTAWA, JOHANNESBURG, SYDNEY Repair Depôts: BIRMINGHAM, MANCHESTER, NEWCASTLE REPRESENTATIVES IN MOST FOREIGN COUNTRIES | ||