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Aviation History
1939
1939-1- - 0084.PDF
20 ffi#&® JULY 6, 1939 ventilation installations, electrical and power installations, joinery and plumbing, etc., without having to depend on sub contractors. Obviously, this alone means a big saving in time and money. The C.S. service is able to provide a scientific analysis of site, labour, trans port, and market proximity require ments. The Company's engineers, work ing in co-operation with the manufac turer, can advise on plant layout and use it as the basis for their design. All de tails connected with the passing of plans by local authorities are looked after. Finally, the Company is in a position to provide finance terms and facilities for the purchase or rental of building land. All this is a flexible service, in that any sections may be used separately. Factories built by Commercial Struc tures, Ltd., are in the main of the ground floor, daylight type, the construction of which has been partially standardised, with the consequent reduction of building costs and time taken in erection. Inci dentally, the Cornpany is able to com plete, in certain circumstances, compara tively large factories within a period of eight weeks from the word "Go." It is, of course, able to build with equal facility multi-storey structures wherever site costs demand it. All C.S.-planned factories—there are already some 250 in existence—are built for sale or rent. For the manufacturer who requires new premises in a hurry, the Company possesses a number of fac tories constructed to a standard design that are always held available. These buildings are planned so that they can be readily adapted to suit the individual requirements. Moulded Synthetic Tapers THE moulding of laminated plastic materials on a sound production basis has proved a stumbling block to many manufacturers, but the production of rolled and moulded taper tubes in this same material presents an even more complex problem. For some time now Ellison Insula tions, Ltd., of Perry Barr, Birmingham, 20, the manufacturers of Tufnol, have been carrying out research in this con nection, with the result that the Com pany is in production with several hundreds of aircraft aerial masts, stream lined, and with a pronounced overall taper. The material of which these masts are made is, of course, Tufnol. They are 49m. long with section dimen sions at the base of 6in. by 2in. The mast tapers down to 4jin. by i£in. The fact that Ellison Insulations, Ltd., have been able to produce on a commercial basis tapered tubes in Tufnol of the type described indicates that the Company should not be long in develop ing larger components in the same material. A Habershon Appointment LAST week it was announced by J. .J. Habershon and Sons, Ltd., the well- known Rotherham strip and sheet steel manufacturers, that Mr. J. H. Whitham had been appointed to the position of technical director to the company—-a post which was rendered vacant by the recent death of Mr. Horace Brearley. Mr. Whitham has had long experience in the production and manipulation of high-grade and special alloy s,teels with J. J. Saville and Co., Ltd., of Sheffield. For some years Mr. Whitham and Mr. Brearley had worked in close co-opera tion in connection with the production of aircraft strip and sheet steel, for Saville and Co. have over a long period been the main suppliers of alloy steels to Habershon and Sons. Mr. M. A. Jane, A.M.I.Mech.E., has been appointed to take charge of the British Thermostat Company's new Birmingham office at Essex House, 27, Temple St., Birmingham, 2. Mr. Jane was for many years with the company at Sunbury-on-Thames, where its head quarters are situated. A rolled and moulded Tufnol aerial mast by Ellison Insulators. HIGH DUTY ALLOYS, LTD.—This exhibit, provided by High Duty Alloys, Ltd., and its associated company, Magnesium Castings and Products, Ltd., will be composed of examples of the " Hiduminium " high-tensile alloys in cast and wrought forms. Crankcase, cylinder block and head castings will show the intricate shapes and thin sec tions which can be obtained with adequate strength. Large stampings, from which cylinder head and barrels, crankcases, etc., are machined, are typical examples of com ponents having extremely high -strength/ weight ratio. Other items will include undercarriage fork stampings, airscrew blade stampings, a magnesium airscrew blade pressing, a number of " Magnuminium " sand and die castings, and examples of research work from the company's laboratories. JABLO (HOLDINGS), LTD.—The specialised airscrew and wood reinforcement technique evolved by this companv will be illustrated by a number of exhibits, including a finished v.p. blade, a blade showing various stages of covering, a section of v.p. blade shaped "in the white,'' a complete reinforced board, a board with loose laminations to show Tego-film glue, and samples of reinforced wood. D. NAPIER AND SON, LTD.—Unique among the uowr ;iants on exhibition will be the 24-cvlinder H-shaped Napier Dagger VIII, which is an air-cooled unit with a total cylinder capacity of 16.8 litres. It is notable in that it gives 175 h.p. per square foot of frontal area, the maximum power being 1,000 h.p. at 8,750ft. The dry weight is 1,390 lb. PHILLIPS AND POWIS AIRCRAFT, LTD—A standard Miles Magister will be exhibited, while another machine of this type is to be demonstrated at the military flying display. As is well known, this is a two-seater wooden construction trainer, with 130 h.p. Gipsy Major engine. It has a top speed of 145 m.p.h. and is widely used in the Royal BRITAIN IN BRUSSELS (Concluded from page 18.) Air Force and Reserve schools for training in general and blind flying. REID AND SIGRIST, LTD.—Both the new aircraft which this firm has produced • and the instruments on which it has built up its reputation will be featured at Brussels. The aircraft is the twin-engined trainer, a three-seater mid-wing type of wooden con struction and powered with two Gipsy Six Series II engines. The cruising speed is in the neighbourhood of 190 m.p.h. at 6,000ft. The R. and S. instruments shown will con sist of the artificial horizon, bubble-type turn indicator, fore-and-aft level, Gyorizon, mirror pitch indicator, sensitivity controls, turn indicator (R.A.F. type), and venturi. ROLLS-ROYCE, LTD.—The products of this firm will need no introduction to Continental visitors at Brussels. Two Merlin types—the III and the X—will form the exhibit. The Merlin fit is a fully supercharged unit giving a maximum output of 1,030 h.p. at 16,250ft., while the Merlin X has a two-speed blower and in high gear gives 1,010 h.p. at 17,750ft. Operating in low gear, it delivers 1,130 h.p. at .5-, 250ft. All figures are for operation on 87-octane fuel. ROTAX, LTD.—The complete range of RotaxrEclipse aero engine starters will be on view, including a number of fully sec tioned models. Among the other Rotax items will be the latest fourteen- and nine-cylinder magnetos. A range of flap and undercarriage motors, limit and solenoid switches will be shown, together with a wide range of general-purpose switches, fuse boxes, switch boxes, and junction boards. The lamps exhibited will include navigation lamps, cabin and cockpit lights, and a range of the well-known Rotax-Harley landing lamps. W. S. SHACKLETO.V, LTD.—The wide in terests of this firm of consultants and agents will be indicated by a number of exhibits. These will include the new Oddie spring cowling fastener and Oddie lock-nut, for which Shackletons have been commissioned to sell the Continental manufacturing rights; Everel single-blade airscrews; and a 37 mm. shell-gun made by the American Armament Corporation and shown in conjunction with Sterling Electric Holdings, Ltd., who have purchased it. It is also hoped to provide particulars on behalf of aircraft manufac turers not otherwise represented. SHORT AND MASON, LTD.—Aircraft and meteorological instruments of the type in which this firm specialises will be displayed. Aircraft instruments, including compasses, will be shown on display panels, there will be laboratory test apparatus, and the meteorological instruments will include a micro-barograph, wind velocity indicator and wind direction indicator. SMITH'S AIRCRAFT INSTRUMENTS.—On the stand of this famous firm of instrument- makers the outstanding exhibit will be a panel for a twin-engined aircraft; it will display a blind-flying group, boost gauge, revolution indicators and oil and fuel gauges, together with a repeat group of flying in struments for the co-pilot. Other Smith's equipment on the panel will include oxygen regulators, undercarriage and flap indicators, vacuum and pressure gauges for gyroscopic instruments and automatic pilot; landing light and flare switches; and warning lights for oil and fuel gauges. YOKES, LTD., will exhibit a panel-type air filter, as incorporated in the cowling of liquid-cooled engines for the filtration of air to the carburettor intake, together with their three-ply external type as used on air-cooled or radial engines, and which can be fitted to existing machines without slowing up production or causing any serious altera tion. Other items will include lubricating-oil filters for use in hydraulic systems, and oil filters for aircraft engines and test-bed work; air straighteners for removing eddies and cross-currents in aircraft intakes; and lightweight engine exhaust silencers for in line and radial engines.
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