Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Recent Technical Developments

Recent Technical Developments February, 1932 AIRCRAFT ENGINEERING 55 A Ventilator for Cabin Aircraft—A Light Aeroplane Radi o Set—Strip Production in Sweden U.S . NATIONAL AERO SHOW TH E FLETTNER VENTILATOR Mr. Anton Flettner is well known for his system Among the firms who have taken space for the of rotors used in place of sails on ships, an coming National Aircraft Show, which is to be held adaptation of which to form the lifting surfaces of a t Detroit City Airport, from April 2 to April 10, inclusive, are:—Pitcairn Aircraft, Inc., of Willow aircraft has been investigated. His dynamical Grove, Pa. ; Waco Aircraft Company, of Troy, O.; servo-rudders are also familiar, both in marine and Grea t Lakes Aircraft Corp., of Cleveland, O.; aircraft practice. Stinson Aircraft Corp., of Wayne, Mich.; Ford The British Flettner Ventilator & Equipment Motor Company, of Dearborn, Mich.; Curtiss- Co., Ltd., of Stafford House, Norfolk Street, London, Wrigh t Corp., of New York, N.Y.; Bellanca Air­ W.C.2, is marketing a new device of his, already craft Corp., of Newcastle, Dela.; American widely used in motor 'buses, coaches and com­ Airplane & Engine Corp., of Farmingdale, L. I., mercial vehicles, which appears to have obvious N . Y. ; Nicholas-Beazley Airplane Co., Inc., of applications to large commercial and other cabin Marshall, Mo.; Irving Air Chute Co., of Buffalo, aeroplanes. N . Y. ; Champion Spark Plug Co., of Toledo, O.; The Flettner ventilator consists of a base-plate, Kendal l Refining Company, of Bradford, Pa.; attached to the roof of the vehicle, in the middle Macwhyt e Company, of Kenosha, Wis. ; Cleveland of which is an oil well, containing the lubricant. Pneumati c Tool Co., of Cleveland, O. ; Hill Aircraft A rotor, in the form of an inverted bowl Streamliner s Co., of Cincinnati, O. ; Timken Roller operate d by a single switch and one tuning dial carrying the air-extracting vanes, is carried on a Bearin g Co., of Canton, O. ; Berry Brothers, Inc., covering approximately 600-1,000 metres in wave­ ball-bearing spindle. Above the bowl are two of Detroit, Mich.; Standard Oil Company of lengths . opposed "pockets " into which the air flows and Indiana , of Chicago, Ill.; General Electric Co., of Th e aerial consists of a single insulated wire causes rotation of the air extractors. It is at Schenectady , N. Y. ; Packard Motor Car Company, runnin g from each wing-tip to the tail fin, and docs present made in three sizes with overall diameters of Detroit, Mich.; The B. G. Corporation, of New no t interfere in any way with folding of the wings. of 12⅜ in., 8⅝ in. and 5⅞ in., having depths, from York, N. Y. ; Elgin National Watch Co., of Elgin, Th e telephone system employed is extremely the top of the rotor to the base of the mounting Ill.; Curtiss-Wright Flying Service, of New York, neat , involving merely the incorporation of a small flange, of 5 in., 4 in. and 3 in. respectively. N . Y. ; Wright Aeronautical Corp., of Paterson, loud-speaker unit in the existing voice pipes. A point of importance is that the Flettner ven­ N . J. ; Norma-Hoffmann Bearings Corp., of Stam­ Thi s eliminates all necessity for extra head-phones tilator continues to rotate for some considerable ford, Conn.; John Roebling's Sons Co., of Trenton, and also allows ordinar y communication to b e carried N . J. ; Western Electric Co., of New York, N. Y. time after the vehicle has come to rest, while it on between pilot and passenger even when the is set in motion by a very slight air current when radi o is in operation. it is stationary, owing to its being mounted on Th e only screening necessary is to the sparking ENGIN E COMPONENTS ball-bearings. plugs and magnetos, and special sets of screens ar e provided for different types of engines, capable The Automotive Engineering Co., Ltd., of The A LIGHT RADIO SET of being fitted in a few moments. No electrical Green, Twickenham, specialise in the design and bonding other than this screening is required. construction of components for internal combustion Standar d Telephones and Cables, Ltd., of Con- Unde r test, no interference whatever was noticed engines. Among their products are B.H.B. self- naught House, Aldwych, London, W.C.2, have eithe r from the engine or external noises, and adjustin g pistons made from R.R.53 aluminium recently put on the market a small four-valve ordinar y inter-communication between pilot and alloy. The features of this piston are a head radio receiving set for use in light aircraft. passenger was found to be much improved. detache d from the skirt, and a split in the latter Th e whole set, including all batteries and the Th e price of the set complete is £25, plus £5 to which ensures self-adjustment and prevents seizure, aerial, only weighs 19½ lb., and has a useful range £6 extra for the necessary screening. It is designed while being noiseless in the cylinder. They also of abou t 100 miles. primaril y for use in connection with the M.4 mak e the Seeger circlip, an ingenious locking receiver and R.S.I. type transmitter for a device for gudgeon pins, an d complete cylinder heads Th e set itself, measuring 4¼ in. by 4¼ in. by ground station, such as have been installed by the for aero-engines. The works are equipped with 9¼ in., and operated by a single control, may be sam e firm a t Heston. special machinery for giving the very high finish of placed at any convenient point in the cockpit all the products. and connected with the batteries, which are con­ tained as a separate unit, by a multi-core cable. SWEDIS H STRIP STEEL Two screened-grid high-frequency valves are used in front of a detector and a transformer-coupled Th e Sandvik British Agency, Ltd., of Norwich low-frequency amplifier with special output. It is Union Chambers, Congreve Street, Birmingham, represen t in Great Britain the Sandvickens Jern- verk s Aktiebolag of Sweden, who have been producing cold rolled strip since 1883. At that tim e they were turning out strip in widths up to 3 3/32 in. , and down to 0·15 mm . in thickness. The y can now deal with width s in "band " steel up t o 32 in . wide, and down to 0·003 mm . thick. Hardene d cold-rolled strip is supplied in four finishes: grey hardened (unpolished), or polished wit h a white, yellow, or blue finish. They invite particulars , accompanied, if possible, by a sample of the article to be mad e from the steel, when they will be able to recommend the best quality to meet th e specification. The equipment of the factory includes rolls of various sizes to deal with the different widths and a very complete annealing shop, incorporating apparatus for automatic regu­ lation of temperatures. One of the photographs reproduced on this page shows this shop, and the othe r a mill for dealing with strip up to about 2 ft. wide. They are taken from an attractively produce d booklet containing full information in regar d to Sandvik products an d a number of pages of tables which have been prepared on unusually useful lines. Copies of thi s booklet can be obtained b y those interested from AIRCRAFT ENGINEERING. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

Recent Technical Developments

Aircraft Engineering and Aerospace Technology , Volume 4 (2): 1 – Feb 1, 1932

Loading next page...
 
/lp/emerald-publishing/recent-technical-developments-tsFCkUY6Xq

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb029515
Publisher site
See Article on Publisher Site

Abstract

February, 1932 AIRCRAFT ENGINEERING 55 A Ventilator for Cabin Aircraft—A Light Aeroplane Radi o Set—Strip Production in Sweden U.S . NATIONAL AERO SHOW TH E FLETTNER VENTILATOR Mr. Anton Flettner is well known for his system Among the firms who have taken space for the of rotors used in place of sails on ships, an coming National Aircraft Show, which is to be held adaptation of which to form the lifting surfaces of a t Detroit City Airport, from April 2 to April 10, inclusive, are:—Pitcairn Aircraft, Inc., of Willow aircraft has been investigated. His dynamical Grove, Pa. ; Waco Aircraft Company, of Troy, O.; servo-rudders are also familiar, both in marine and Grea t Lakes Aircraft Corp., of Cleveland, O.; aircraft practice. Stinson Aircraft Corp., of Wayne, Mich.; Ford The British Flettner Ventilator & Equipment Motor Company, of Dearborn, Mich.; Curtiss- Co., Ltd., of Stafford House, Norfolk Street, London, Wrigh t Corp., of New York, N.Y.; Bellanca Air­ W.C.2, is marketing a new device of his, already craft Corp., of Newcastle, Dela.; American widely used in motor 'buses, coaches and com­ Airplane & Engine Corp., of Farmingdale, L. I., mercial vehicles, which appears to have obvious N . Y. ; Nicholas-Beazley Airplane Co., Inc., of applications to large commercial and other cabin Marshall, Mo.; Irving Air Chute Co., of Buffalo, aeroplanes. N . Y. ; Champion Spark Plug Co., of Toledo, O.; The Flettner ventilator consists of a base-plate, Kendal l Refining Company, of Bradford, Pa.; attached to the roof of the vehicle, in the middle Macwhyt e Company, of Kenosha, Wis. ; Cleveland of which is an oil well, containing the lubricant. Pneumati c Tool Co., of Cleveland, O. ; Hill Aircraft A rotor, in the form of an inverted bowl Streamliner s Co., of Cincinnati, O. ; Timken Roller operate d by a single switch and one tuning dial carrying the air-extracting vanes, is carried on a Bearin g Co., of Canton, O. ; Berry Brothers, Inc., covering approximately 600-1,000 metres in wave­ ball-bearing spindle. Above the bowl are two of Detroit, Mich.; Standard Oil Company of lengths . opposed "pockets " into which the air flows and Indiana , of Chicago, Ill.; General Electric Co., of Th e aerial consists of a single insulated wire causes rotation of the air extractors. It is at Schenectady , N. Y. ; Packard Motor Car Company, runnin g from each wing-tip to the tail fin, and docs present made in three sizes with overall diameters of Detroit, Mich.; The B. G. Corporation, of New no t interfere in any way with folding of the wings. of 12⅜ in., 8⅝ in. and 5⅞ in., having depths, from York, N. Y. ; Elgin National Watch Co., of Elgin, Th e telephone system employed is extremely the top of the rotor to the base of the mounting Ill.; Curtiss-Wright Flying Service, of New York, neat , involving merely the incorporation of a small flange, of 5 in., 4 in. and 3 in. respectively. N . Y. ; Wright Aeronautical Corp., of Paterson, loud-speaker unit in the existing voice pipes. A point of importance is that the Flettner ven­ N . J. ; Norma-Hoffmann Bearings Corp., of Stam­ Thi s eliminates all necessity for extra head-phones tilator continues to rotate for some considerable ford, Conn.; John Roebling's Sons Co., of Trenton, and also allows ordinar y communication to b e carried N . J. ; Western Electric Co., of New York, N. Y. time after the vehicle has come to rest, while it on between pilot and passenger even when the is set in motion by a very slight air current when radi o is in operation. it is stationary, owing to its being mounted on Th e only screening necessary is to the sparking ENGIN E COMPONENTS ball-bearings. plugs and magnetos, and special sets of screens ar e provided for different types of engines, capable The Automotive Engineering Co., Ltd., of The A LIGHT RADIO SET of being fitted in a few moments. No electrical Green, Twickenham, specialise in the design and bonding other than this screening is required. construction of components for internal combustion Standar d Telephones and Cables, Ltd., of Con- Unde r test, no interference whatever was noticed engines. Among their products are B.H.B. self- naught House, Aldwych, London, W.C.2, have eithe r from the engine or external noises, and adjustin g pistons made from R.R.53 aluminium recently put on the market a small four-valve ordinar y inter-communication between pilot and alloy. The features of this piston are a head radio receiving set for use in light aircraft. passenger was found to be much improved. detache d from the skirt, and a split in the latter Th e whole set, including all batteries and the Th e price of the set complete is £25, plus £5 to which ensures self-adjustment and prevents seizure, aerial, only weighs 19½ lb., and has a useful range £6 extra for the necessary screening. It is designed while being noiseless in the cylinder. They also of abou t 100 miles. primaril y for use in connection with the M.4 mak e the Seeger circlip, an ingenious locking receiver and R.S.I. type transmitter for a device for gudgeon pins, an d complete cylinder heads Th e set itself, measuring 4¼ in. by 4¼ in. by ground station, such as have been installed by the for aero-engines. The works are equipped with 9¼ in., and operated by a single control, may be sam e firm a t Heston. special machinery for giving the very high finish of placed at any convenient point in the cockpit all the products. and connected with the batteries, which are con­ tained as a separate unit, by a multi-core cable. SWEDIS H STRIP STEEL Two screened-grid high-frequency valves are used in front of a detector and a transformer-coupled Th e Sandvik British Agency, Ltd., of Norwich low-frequency amplifier with special output. It is Union Chambers, Congreve Street, Birmingham, represen t in Great Britain the Sandvickens Jern- verk s Aktiebolag of Sweden, who have been producing cold rolled strip since 1883. At that tim e they were turning out strip in widths up to 3 3/32 in. , and down to 0·15 mm . in thickness. The y can now deal with width s in "band " steel up t o 32 in . wide, and down to 0·003 mm . thick. Hardene d cold-rolled strip is supplied in four finishes: grey hardened (unpolished), or polished wit h a white, yellow, or blue finish. They invite particulars , accompanied, if possible, by a sample of the article to be mad e from the steel, when they will be able to recommend the best quality to meet th e specification. The equipment of the factory includes rolls of various sizes to deal with the different widths and a very complete annealing shop, incorporating apparatus for automatic regu­ lation of temperatures. One of the photographs reproduced on this page shows this shop, and the othe r a mill for dealing with strip up to about 2 ft. wide. They are taken from an attractively produce d booklet containing full information in regar d to Sandvik products an d a number of pages of tables which have been prepared on unusually useful lines. Copies of thi s booklet can be obtained b y those interested from AIRCRAFT ENGINEERING.

Journal

Aircraft Engineering and Aerospace TechnologyEmerald Publishing

Published: Feb 1, 1932

There are no references for this article.