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Aviation History
1959
1959 - 1755.PDF
840 THE INDUSTRY Hoses and Fittings APPLICATIONS and manufacture of Aeroquip flexible hose•• were the subjects of a series of films shown recently to aircraft operators and others (at the conveniently chosen venue of LondonAirport) by Super Oil Seals and Gaskets Ltd., of King's Norton, Birmingham, who manufacture this equipment under licence fromAeroquip Corporation, of Jackson, Mich. The hose—an adjunct of which is the provision of quicklydetachable and re-usable end-fittings—is available in a wide range of sizes within five categories, as follows: — Type 306 rubber-covered, for low-pressure (up to 300 lb/sq in) appli-cations—air or vacuum systems, autopilots, pressure gauge lines, etc. Operating temperature range —65 deg F to 180 deg F. Type 303 cotton-braid covered, single-wire-braid reinforced, for pres-sures up to 3,000 lb/sq in on aircraft hydraulic, pneumatic, fuel, oil and coolant systems; —65 deg F to 250 deg F.Type 309 rubber covered, double wire-braid reinforced, for pressures up to 3,000 Ib/sq in on high-pressure hydraulic and pneumatic systems. Type 601 lightweight wire-braid covered rubber, for fuel and otherpowerplant lines (particularly on jet engines), where flexibility, low weight, ability to stand extreme temperatures ( — 65 deg F to 365 deg F)and a high measure of fire-resistance are a pre-requisite. Type 666/667 high-temperature polymer wire-braid covered, wire-braid reinforced. This hose is stated to be unaffected by any known fuel, petroleum or synthetic-base oils, alcohol, coolants or solvents com-monly used in aircraft. Pressures up to 1,500 lb/sq in; temperatures, -100 deg F to 500 deg F. Associated items of equipment include "Redcaps," which areinexpensive polythene protectors, available in wide range of sizes, for British and U.S. threads (internal and external) on hose fittings,valves, and other machined parts. In addition to their protective and dirt-excluding properties, they can be used for masking threadsduring painting or plating; they also lend an attractive finishing- touch to mechanism for display purposes. Locked Studs and Inserts ALREADY in use by a number of British aero-engine manu-•**• facturers, Rosan permanently locked studs and inserts would appear to provide a solution to the problems commonly associatedwith the employment of steel studs in light-alloy castings. The studs are now manufactured in this country by the InstrumentScrew Co. Ltd., of Northolt Road, South Harrow, Middlesex. As will be seen from the accompanying illustrations of onetype of Rosan stud, the system is conventional in principle except for the addition of a serrated collar and lock ring. The stud or insert is screwed into a prepared hole which has a countersunkneck. The lock-ring is then placed over the stud or insert so that the inner serrations of the ring engage with the serrated collarof the stud. The ring is driven into the parent metal, its body being accommodated in the countersunk recess at the top of thehole; its outer teeth, which are undercut to form broaches, cut their way into the parent metal until the ring is flush with thesurface of the metal. Once secured the stud or insert becomes virtually part of theparent metal. Should it become damaged, however, it is easily removed and may be replaced with an identical unit. In theevent of design change, wrong positioning or faulty processing it can be replaced with a larger unit or a solid unit, thus savingthe scrapping of an otherwise correct component. Low-friction Load-carrying WELL known as manufacturers of castors for industrial andother purposes, Autoset (Production) Ltd., of Stour Street, Birmingham, 18, are also makers of the low-friction load-carryingdevices known as "Omni-track" conveyor ball units. Each unit consists of a large load-carrying ball supported ona bed of small balls which recirculate over and under the surface of a saucer-shaped steel table. A typical application is to facilitatethe handling of metal plates or sheets; and if the units are mounted in parallel rows they can carry tube or bar material, also permit-ting it to be revolved as well as be moved longitudinally. Used as cam followers, "Omni-track" units permit inclination from thenormal thrust-angle. The latest model, with a 2in-diameter ball having a dynamiccapacity of five tons, embodies a spring-loaded bronze ring which, FLIGHT, 19 June 1959 permanently in contact with the main ball, prevents the ingressof scale or other foreign matter to the recirculating-ball tracks. Capacities of the various models range from five tons (2in or ljinball) down to 50 lb (iin ball). Dual-purpose Cockpit Light A NEW supplementary lighting unit which can be manually setto spotlight or floodlight any selected area in an aircraft cock- pit is announced by the Aircraft Components and ConnectorEnvision of Thorn Electrical Industries Ltd., of Enfield, Mddx. Known as cockpit utility light, it has a quick-release universal-joint mounting which, in combination with the extendable cable, enables the unit to be used as a hand torch. A rotatable bezel isprovided for white or red floodlighting and white or red spot- lighting, and an adjustable dimming control knob is fitted. These bearing rings—to support the pressure-jet air ducts within the Fairey Rotodyne's rotor blades—are made by Wills Pressure Filled Joint Ring Ltd. from "Fluon" p.t.f.e. (I.C.I. Plastics Ltd.). Reductions of about 13 per cent in the cost of "Fluon" have recently been made IN BRIEF Over 300 British and overseas exhibitors are displaying their productsat the International Plastics Exhibition and Convention, which opened at Olympia, London, last Wednesday, and continues until June 27.Organized by our associated journal British Plastics, the show is open daily (Sunday excepted) from 10 a.m. to 6 p.m., with extensions to8 p.m. on June 24 and 25. Mr. D. N. Gifford, commercial manager of Birlec-Efco (Melting)Ltd., has been appointed a director of the company. Solartron Electronics Group Ltd. has produced a handsome and com-prehensively illustrated brochure, New Worlds We are Building Now, to record its activities during 1958 and to commemorate a decade ofexistence. A new appointment in the Goodyear sales organization is that of Mr.F. J. Battersby as manager of the sales personnel and sales development division at Wolverhampton. Formerly manager of the north-westerndivision, he is succeeded in that post by Mr. E. D. Mackintosh. An illustrated brochure, Encon Continuous Cast Bronzes for Produc-tion and Maintenance in the Engineering Industry, has been published by Enfield Rolling Mills ltd., Brimsdown, Enfield, Middx. It containsfull information and data on the range of Encon continuous cast rods, tubes and shapes. British Petroleum Ltd. have recently installed a hydrant refuellingsystem at Portela airport, Lisbon. It employs Fram combined water separators and micro-filters, supplied by Simmonds Aerocessories Ltd.,a member of the Firth Cleveland Group; and the dispenser which trans- fers the fuel from hydrant lines to aircraft is also fitted with a Frammicro-filter. Appointments notified by the Mond Nickel Co. Ltd. include those ofDr. W. Steven, superintendent of their development and research labora- tory in Birmingham, as director of research (and an assistant vice-president) of the International Nickel Co. Inc., New York; Dr. G. L. J. Bailey as his successor at Birmingham; and of Dr. W. Betteridge assuperintendent of the platinum metals laboratory of the development and research department at Acton. A recent display model by Westway Models Ltd. (178 Brent Crescent, London N.W.10) is this part-sectioned T.C.A. Vanguard of 60in span
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