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).
Testimonials and applications for an oscilloscope, including a list of users.
| Identifier | ExFiles\Box 53\1\ Scan049 | |
| Date | 3rd September 1927 guessed | |
| 6 Extracts from Testimonials. THE BRISTOL AEROPLANE CO., LTD., Bristol. Observations have been made on the surging of Valve Springs, Valve bounce, Push Rod mechanism, Cam design, Oiling, etc. In all these instances the Oscilloscope has been of CONSIDERABLE VALUE in correcting details of design and workmanship, and I DO NOT KNOW OF ANY OTHER WAY IN WHICH THESE PROBLEMS COULD HAVE BEEN TACKLED except by such an instrument. I have no hesitation in saying that I consider the Oscilloscope A MOST VALUABLE INSTRUMENT to any firm engaged on the development of the design of internal combustion engines. The scope of this instrument is wide, even in this one field, and there must be very many other mechanical motions in all branches of engineering in which the Oscilloscope would prove most valuable. SOME USERS. GREAT BRITAIN. British Government Departments: The Admiralty. The Air Ministry. The Ministry of Agriculture. Alvis Car & Engineering Co., Ltd Armstrong Siddeley Motors, Ltd. Austin Motor Car Co., Ltd. William Beardmore & Co., Ltd. Baird & Tatlock (London), Ltd. Bentley Motors, Ltd. Birmingham Small Arms Co., Ltd. Bristol Aeroplane Co., Ltd. British Cotton Industry Research Association. British Thomson-Houston Co., Ltd. British Petroleum Co., Ltd. Anglo-Persian Oil Co., Ltd. J. {Mr Johnson W.M.} & P. Coats, Ltd. Chilprufe Manufacturing Co. Components, Ltd. Coventry Chain Co., Ltd. Creed & Co., Ltd. Douglas Motors, Ltd. Alexander Duckham & Co., Ltd. 7 SOME APPLICATIONS—(continued). fuel is injected and over how many degrees in angular displacement; over how many degrees a true fuel spray is actually obtained; the lag between the theoretical setting and the actual timing of the spray; the effects of various oil fuels; and so on. Electric Cable Making. (Type "A"). The exact study of the spreading of the strands on the needle after passing through the guides, to obtain uniformity of thickness of braid or silk on the cables. Clutch Transmission. (Type "B"). The accurate determination of the percentage slip of clutch drives, at various loads and speeds. Lubrication Systems. (Type "A"). The analysis of the behaviour of lubricants on moving parts and of oils when ejected from orifices of various shapes. The instrument can also be used for testing the static and the dynamic co-efficients of lubrication, or friction, but it is necessary to make up a small special equipment to be used with the Oscilloscope, for this particular purpose. Cinematograph Projectors. (Type "A"). Analysis of back-lash in the gears and its effect, and of the intermittent motion which passes the film in front of the shutter; the ascertaining of whether the shutter operates at the same speed continuously or not, and so on. Electric Lamp Manufacture. (Type "A"). Analysis of spiral filament winding for gas-filled lamps, observation of the form of spiral, the effect of the tension on the filament during the operation of winding on the mandril, and so on. Textile Machinery. (Type "B"). In this instance, the applications are almost too numerous to set out in this booklet, but several of the problems on textile machinery have reference to relative speeds of certain parts to other parts, an example being the case of Spinning Frames. To obtain high quality and satisfactory production, it is essential that spindles or bobbins on the same frame should vary in speed as little as possible one from the other; the OSCILLOSCOPE, with the gearbox driven off the tin roller, shows immediately the amount of speed variation between spindles or bobbins UNDER ACTUAL WORKING CONDITIONS and, where means are | ||