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Aviation History
1938
1938 - 0537.PDF
FEBRUARY 24, 193& FLIGHT. 189 B.I.F. of the Twelve Miles of itical Components and Represented American concerns. Circlips for gudgeon- pin location and other purposes are other items made in vast quantities. B E.N. Patents, Ltd., Gorst Road, Park Royal, London, N.W.10 B.629).— Seekers after aerodrome equipment are liable to be confronted on B.629 with an embanas de richesse, there being air compressors, receivers, fittings, auto- matic switchgear, paint spraying machines, spray guns, air filters, valves, hose, exhaust fans and kindred gear making for efficient production methods and workmanship. Just to top oft the show, B.E.N. pre- sent power greasers, meters and polishers. Bahelite, Ltd., 68, Victoria Street, London, S.W.i (Cb.408).—The aircraft industry- can never know too much about the application of Bakelite synthetic resin products which is in some measure an explanation of the purposeful trek towards Cb.408. The keen student of Bakelite developments is, of course, aware of the use of Bakelite for instru- ment panels, cases and similar items, thougli even he may not be aware of the fact that Teleflex controls employ this ubiquitous material very extensively. At the moment Bakelite, Ltd., are co- operating with De Havillands in produc- ing some advanced forms of airscrew blades. Baldwins, Ltd. [Midland Branch), Wilden Ironworks, Stourport-on-Severv (Cb.312),—Very heavily coated tin sheet is the common material used for aircraft fuel tanks. Baldwins supply it. and, moreover, with their Terneccated sheets, cater for less exacting demands. Teruecoating, may we explain, entails the mixture of lead and tin. Light, bright and colourful—Cellon show what they have to offer in the way of v finishes. The Wilden Ironworks are also re- sponsible for steel sheets (to A.M. speci- fications) for aircraft pressings. Bendix, Ltd., Tyseley, Birmingham, 11 (D.428).—Bendix brakes are justly famed, and it is worthy of note that the Air Ministry have recently placed a big order for such brakes on Tasker trailers. There is, however, another product which bears the name of Bendix, namely, the Tracta constant-velocity universal joint. This joint, it is claimed, operates vvith accuracy and efficiency, is compact and has high angularity and a heavy load capacity. Sizes vary from models suitable for remote controls up to joints for large driving shafts. Birmingham Battery and Metal Co., Ltd., Selly Oak, Birmingham (Cb. 613). —More than a century ago the foundeis of this firm established a business for the manufacture of brass pans. The pro- cess used employed a battery of tilt hammers, hence the "Battery" in the name of a firm quite unconnected with electrical storage. To-day all types of brass and copper pipes and phosphor-bronze and alumin- ium-bronze bearing metals are supplied for aircraft applications. ngots unlimited—on the stand of T. J. Priestman, Ltd., specialists in aluminium, brass, bronze and other alloys. Birmingham' Electric Furnaces, Ltd., Birlec Works, Tyburn Road, Erdington, Birmingham (Cb.313 and 214).—De- finitely something really patrician among furnaces is the Birlec con- tinuous belt conveyor model, which has taken possession of one side of the double stand. Its mission in life is brazing and bright annealing vvith con- trolled atmosphere produced in an I.C.I. patented regenerative ammonia burner. Blackburn Aircraft, Ltd. (Cirrus En- gine Section), Brough, East Yorks D.y?.o).—The many lively light aircraft which now take the air at home and par- ticularly abroad under Minor or Major power prove beyond doubt the reliability and increased performance of these two popular Cirrus units. Even if the outside paint and polish of the B.I.F. Show model 90 h.p. Minor and Major 150 is not to be found on a production engine, we can rest assured that all the internal finish and, no doubt, plenty more, is there beneath the more sonibre exterior coat. The British Oxygen Co., Ltd., Thames House, Millbank, London, S.W.i (D.411 and 312).—No matt?r how rough the weather, dissolved acetylene flarelights, as shown by the British Oxygen Co., give up to 10,000 candle-power. They are, in fact, as efficacious in dispers- ing gloom as are the B.O.C. demonstra- tors of portable welding outfits in dis- pelling any doubts on the efficiency of the equipment. Exhibits centre round oxy-acetylene welding and cutting equipment, and in- clude a range of blow-pipes for brazing and lead-burning. The British Thermostat Co., Ltd., Windmill Road, Sunbury-on-Thatnes, Middlesex (Cb.700 .—Keeping a tag on Mr. Therm in his diverse duties is a matter calling for some ingenuity, but any tendency on the part of that bene- ficent personality toward over-exuher- ance or lethargy is summarily counter- acted by devices such as are displayed on Cb.700. Technicians will appreciate the pre- sence of a valve operated by hydraulic pressure developed by a motor-driven pump. A thermostat automatically re- gulates the pressure leak between the pump delivery and inlet so that opera- tion pressure, and, therefore, the opening of the valve, is related to temperature. British Thomson-Houston Co., Ltd., Aldwych, London, W.C.z (Cb.507, 404). —There are surprises here for those who
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