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Aviation History
1914
1914 - 0274.PDF
[/ JGHT] thnut ball-bearing being also fitted so that the engine may be used either for a tractor or a pusher type of machine. We may observe that one of the smaller engines has recently undergone some very severe tests at the Royal Aircraft Factory and has been purchaied by the War Office, while the excellent per formances of the Sunbeam on the Maurice Farman biplane at lirouklands need only to be mentioned in order to be remembered by readers of FLIGHT. MARCH 14, 1914. already done considerable service. Cylinders, cylinder heads, valve boxes and pistons of both engines are of forged steel, giving an exceedingly light and strong construction, the cylinders beinc machined from the solid billet. All valves are placed in the head and are operated by rocking levers and pusn rods. In addition to these models, an engine of similar design to the air-cooled motor but developing 90 h.p. at 1,800 revolutions and weighing 385 lbs. is also manufactured, as well as a 90 h.p. water- WOLSELEY SEMI-AIR-COOLED 60-80 H.P. ENGINE.—Note the small radiator mounted on the engine for the cooling water circulating round the exhaust-valve pockets. Wolseley Tool and Motor Car Co., Ltd. (58.) Two aero-engines will be exhibited on this stand. The first, which is designed for use on aeroplanes, will be similar to that which made its appearance at the last Olympia Show, an eight-cylinder, vee, air-cooled engine, with water cooled exhaust valve boxes—the propeller being driven off the end of the cam-shaft. A small radiator is provided and attached to the engine, so that the power plant is a complete unit. The second engine is an eight-cylinder water-cooled engine developing 130 h.p. at 1,200 revolutions per minute, and is intended for airship work—a sphere in which it has cooled engine designed on the same general lines as the 130 h.p. motor, except that it runs at speed of 1,800 revs, per minute. All of these are of the vee type with pump lubrication to the three white metal crank-shaft bearings, while the weight of the 90 h.p. is 405 lbs. The camshaft runs in roller bearings and is fitted with a ball-thrust bearing to take the propeller drive except on the 120 h.p. engine, where the propeller is coupled direct to the crank-shaft. In the case of the 9c h.p. water-cooled engine the propeller can also be, if desired, driven off the crank shaft. SOME FLIGHT ACCESSORIES AT OLYMPIA. The Anglo-American Oil Co., Ltd. (75), of 36-38, Queen Anne's Gate, Westminster, London. S. W., are displaying samples of the well-known " Pratt's Perfection Spirit." In addition to the above they will be showing various brands of their refined oils :—White Rose, Royal Daylight, Crown Diamond and Gladiator, also oil cookers and heaters. S. Bowley and Son (108), Wellington Works, Battersea Bridge, London, S.W., are showing motor spirits, lubricants, and a special range of paints and varnishes suitable for aircraft. Another speciality will consist of " Varniflex," a waterproof film or dope for protecting aeroplane fabrics and balloon or airship envelopes. Its main features are that it is claimed not to peel, crack or crumble, and resists the destructive action of oils. The British Petroleum Co., Ltd. (109), 23, Fenchurch Street,London, E.G.,will have a display of packages used in the distribution of the well-known brands of "Shell" and " Crown " motor spirit, " Swan " spirit for air gas plants, liquid fuel for internal com bustion engines, a model of drilling rig and derrick, model tank steamer, and a case of Shells, after which the line of "Shell" steamers is named. Brown Bros., Ltd. (6), Great Eastern Street, London, E,C, will exhibit the follow ing :—The Brolt Electric Lighting Dynamo, together with switch, and searchlight using integral bulbs ; lathes and small tools, copper tubing, steel tubing, and material of every description suitable for either aeroplane or motor-boat work. A special exhibit will con sist of the " Rapid " valve truer, a simple device for the easy reseating of valves. Burroughs Wellcome and Co. (4), Snow Hill Buildings, London, E.C., will, as on previous occasions, be showing a collection of" Tabloid " first aid equipments, varying in size from that of a cigarette-case to larger sizes, for use in aerodromes, &c Cellon, Ltd. (104),of ly.Old Broad Street, London, E.C., will exhibit Cellon dopes- and varnishes, Cellon transparent sheets for windows, windshields, &c, Cellon fire-proof dopes, which render the fabric fire-proof. A collection of photographs showing numerous aircraft employing Cellon specialities will also be shown. 274 T.W. K. Clarke and Co. (iOA).of Kings ton, are showing the James Means Visual Sig nalling Apparatus and samples of oxy-acety- lene welding. Other exhibits will consist of Clarke wide hubs for landing wheels, a 10th scale model Farman biplane, model petrol engines and accessories, and compressed air rotary motors for models. Robert Coan (13), 219, Goswell Road, London, E.C., is well known in the engineer ing world for his aluminium castings, and so his exhibit, which will consist of every de scription of castings in aluminium, should be of special interest, in view of the fact that alu minium, on account of its lightness, is suitable in many ways for aeroplane construction. Special castings for aeroplane and airship work will be included in this exhibit, in addition to various specimens of repairs to aluminium castings. Dover, Ltd. (I), of Northampton, are ex hibiting the " Dover " patent steering wheels with spiral-ribbed non-flam "Doverite" covering, which affords a perfect grip when wearing aviation mittens or thick gloves. This wheel is perfectly rigid and symmetrical, and is both light and strong, being, there-
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