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Aviation History
1956
1956 - 1846.PDF
1010 FLIGHT, 28 December 1956 THE INDUSTRY Sir George Godfrey Report TT has been announced by Sir George Godfrey and Partners••• (Holdings), Ltd., that their profit for the year ended August 31, 1956, after deducting taxation and other expenses, was £237,406,This compares with £.279,259 for the previous year. A dividend of 22j per cent on the ordinary shares is proposed. The company's full report and accounts are due to be issuedtoday (December 28) and the annual general meeting is to be held on January 23. Automatic Announcer AN automatic announcing system has been developed by**• Southern Instruments, Ltd., Frimley Road, Camberley, Surrey. Called "Repetina," it records any spoken message orinstruction and then repeats it—in several different languages if desired—over any number of loudspeakers. Repetina can be setto operate either once or continuously, at pre-determined intervals; it is completely mobile and is said to operate as well on vehiclesas indoors. Steel Sheet Data , ' I 'O help the aircraft industry in familiarizing itself with the S500-•• series of British Standards for steel sheets and strips [see p. 159, Flight, July 27] the Society of British Aircraft Constructors hasissued an addition to its range of materials data sheets. This new one, M.A.T.6 (Sheet and Strip), complements the recently revisedM.A.T.I covering specifications for steel bars and forgings. It provides a complete reference to the complete B.S. range for steeland strip, and also to those D.T.D. specifications still available for more specialized requirements. Copies of the schedules and ofdata sheets M.A.T.2-5 (covering aluminium alloys in the form of sheet, strip, castings, bars, forgings and extruded sections andtubes) are available from the S.B.A.C. at 29 King Street, St. James's, London, S.W.I, priqe Is per copy or 6s for six sheets. Electrical Overload ^Protection TMPROVED protection against electrical overloads in aircraft is-*• claimed as the virtue of a new circuit breaker now being manu- factured by the Plessey Co., Ltd., Vicarage Lane, Ilford, Essex,under licence from Mechanical Products, Inc., of Jackson, Michigan, U.S.A. This Type "A" breaker is designed to withstand overloadcurrents up to 6,000 amp without suffering damage. Under excess load the thermal release will break the circuit independendy ofthe mechanical switch latches, even if the operating button is held in the "on" position. , . . :->. CONTACT RETURN SPRING Details of the Plessey Type "A" circuit breaker. A push-pull button switch has been adopted as the mostpositive method of control. Visual indication of setting is given by a white band round that portion of the button stem which isvisible only in the "off" position; so it is possible to see at a glance when the thermal overload device has been tripped. Contactpressure is maintained by steel extension springs which carry no current, connection between the contacts and the thermal elementbeing effected by means of flexible conductors. Type "A" circuit breakers are available in current ratings from5 to 50 amp and comply with British and American aircraft speci- fications. Full details are contained in Publication No. 868,from the Plessey aircraft and automotive group, Ilford. A Vulcan nose radome, photographed in the Avro works. Moulded with Bakelite polyester resins reinforced by glass fibre, it is stated to combine high strength/weight ratio with good radar transparency. ^': •:::,.;:-: IN BRIEF •• -y^ The head office of the Mullard Organization is now at Mullard House, Torrington Place, London, W.C.I (Telephone: Langham 6633). * * * Well known in the United States, Almco equipment for thebarrel-finishing of small parts is now being sponsored in diis country by Almco Supersheen Division of Great Britain, Ltd.,Bury Mead Works, Hitchin, Herts. American users include Boeing, Solar, G.E.C., Bell, Vertol and Sikorsky. * * * We regret to record the death recently, at the age of 82, ofMr. W. S. Naylor, chairman of the Chloride Electrical Storage Co., Ltd., from 1929 until he relinquished the position in July1946. Mr. Naylor joined the Chloride Co. in 1902 as assistant manager, became general manager four years later and in 1921joined the Board of directors. * * * Mr. M. A. East has relinquished his post as head of the technicalsales department at Western Manufacturing (Reading), Ltd., and joined S. Davall and Sons, Ltd., at Greenford. After serving withHordern-Richmond, Ltd., as technical assistant and chief draughts- man from 1938 to 1946, Mr. East held positions with Miles Air-craft, Ltd., de Havilland Propellers, Ltd., and Vickers-Armstrongs (Aircraft), Ltd. * * • A special six weeks' course is to be held at the Harwell ReactorSchool from June 3 to July 12, 1957, offering an opportunity to acquire basic knowledge of nuclear energy. It has been designedprimarily for people of degree standard who are not directly con- cerned with overall reactor design. Some sixty places will beavailable and application forms are obtainable from the Reactor School, A.E.R.E., Harwell, Berks.* * * Mr. Frederick I. J. Page has been appointed manager of theaviation division of S. Smith and Sons (Australia) Pty., Ltd. He succeeds Mr. F. J. Shaw, who has been appointed assistant generalmanager to the Australian company. Mr. Page will initially be located at the Bank Street, South Melbourne, branch of S. Smithand Sons, but early in 1957 is to move to the company's head- quarters at Granville, N.S.W., * * * Among the occupants of an imposing new ten-storey buildingoverlooking the Thames near Lambeth Bridge are Cementation (Muffelite), Ltd., well known as designers and constructors oftest-house silencing equipment and—a recent development— shockproof mountings for aircraft instruments and machine tools.They are a subsidiary of the Cementation Co., Ltd., who are the sole lessees of the building and occupy the upper floors. Theaddress is 20 Albert Embankment, London, S.E.ll, and the telephone number is Reliance 6556. Publisher's announcement: A printing error in the advertisement ofthe Middleton Sheet Metal Co., Ltd., on page 2 of the issue of December 14 may have led to misunderstanding. A statement on thatpage should have read ". . . resistance welding of high strength aluminium alloys by Middleton is proving its worth. Instead of theweight of 1,600 rivets, 1,600 spots of no weight whatsoever do the job on the navigator's table for the Avro Vulcan."
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