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Month in the Patent Office

Month in the Patent Office 184 AIRCRAFT ENGINEERING July, 1929 A Selection from Important Recently Published Aircraf t and Aero Engine Specifications of the charge, and the sparking plug is mounted wheels may be connected to the fuselage by a No . 308,873. Aircraft. Boulton & Paul, therein. The projection G is recessed, if cable so tha t they act as brakes in the water. Ltd. , Riverside Works, and North, J. D., necessary, to provide clearance for the valves, Fo r towing purposes, automatic shutters give 4, The Close, both in Norwich. Feb. 25, 1928, and the dimension L is as small as possible; access to coupling members attached to the No. 5940. [Class 4.] th e invention is especially applicable to the chassis framework. A tail skid 73, Fig. 10, Framework.—For connecting together rods combustion chambers described in Specification has an extension 76 connected by sandows 79 or tubes, particularly in aircraft framework, 148,046. The specification contains several and links 81 to the fuselage. A spade 40 is th e rods or tubes are surrounded at the con­ indicator diagrams showing how smoother normally retained by a bolt 42 rotatable from necting points by sleeves having flat parallel running is produced by the engine, and it is th e cockpit. The spade may be on the landing faces arranged oppositely in two or more pairs, state d that detonation is avoided when the chassis or fuselage, and more than one may be the tube s clearance between the piston top and the provided. The sandows may be replaced by a being bolt­ cylinder head is less than 1/ in.; figures are spring shock-absorber. ed together also given to show to what extent the compres­ wit h the sion ratio must be reduced to avoid detonation flat faces No . 309,074. Aircraft. Soc. Anon. des when the clearance exceeds this amount. directly in Ateliers D'Aviation L. Breguet, 115, Rue de la contact, as Pompe, Paris. March 18, 1929, No. 8761. show n in Convention date, April 4, 1928. Not yet No . 309,297. Internal-combustion en­ Fig. 6, or accepted. Abridged as open to inspection gines . Ricardo, H. R., 21, Suffolk Street, Pall th e flat under Sect. 91 of the Acts. [Class 4.] Mall, London. Oct. 18, 1927, No. 27644. faces may serve as seatings for lugs C2, D2, [Class 7 (ii).] Cars; framework; planes, arrangement of.— as shown in Fig. 4. The sleeves are formed An aeroplane or hydroaeroplane has a separately Cylinders, combustion chambers of, baffles for of magnesium, aluminium or steel, and have constructed hull surrounding the cockpits and guiding charge and arrangement of igniters in.— tapered ends to distribute the stress and are the framing that connects the tail to the main I n a combustion chamber F, which overlaps the secured to the tubes either by shrinking on body, and this framing is formed as a single cylinder bore and is arranged to produce turbu­ or by bolting. The bolts shown in Fig. 4 lence, as described in Specification 148,046, the are surrounded by enlarged bushes A3. Wiring sparking plug is plates P may be secured beneath the lugs C2. located at J in the par t of the head 308,950. Aircraft. Couzinet, R. A. A., closely approached 106, Boulevard Magenta, Paris. Feb. 23, 1928, b y th e piston. The No. 29789. Divided application. [Class 4.] clearance between this part and the Wheels, runners, and skids.—The chassis of piston face should each front wheel of a three-engined aeroplane is not exceed 4 per streamlined in cent. of the stroke, one with the side and the amount of charge entrapped should not engin e frame­ exceed 10 per cent. of the whole charge. If this work 37. Each clearance approaches a minimum of 0·02 in., wheel is slidably a recess F2 may be formed, either in the head mounted in the or the piston, adjacent the sparking plug or a chassis on, a link- girder. A casing of sheet iron 1 stiffened by sparking plug having an appreciable gas capacity work 87, 88, hav­ angle irons carries an engine platform 2, the may be employed. An example is given in ing a fixed pivot undercarriage, and the plane spars 4, which which if this capacity is 1 c.c , the clearance 89 ; one of the extend right across the machine, and is con­ 0·022 inch, the cylinder bore 4 in., the com­ members 87, 88 nected to the tail by a beam 3 which may be pression ratio 5: 1, then good firing will take is connected to formed as a box girder with fluted webs, as place with a 20 per cent. weak mixture. the chassis by shown in cross-section in Fig. 3a. The controls sandows. The pass through this girder. For commercial wheels are of purposes, a detachable hull provided with a large size and the parachute is secured to the frame by three chassis is shaped releasable bolts. t o form a skid Shock-absorbers, applications of.—The lower surface 27 pro­ par t of the detachable hull, which normally vided wit h rollers. rests astride the girder 3, is packed with elastic The axle 86 can material to absorb shock on landing. b e removed through openings 35, and the wheel No . 309,092. Internal-combustion en­ through doors 36. gines . Ricardo, H. R., 21, Suffolk Street, The wheels may Pall Mall, London. Oct. 5, 1927, No. 26321. be positioned by [Class 7 (ii).] members remov­ Cylinders, combustion chambers of, and arrange­ able during flight, so tha t the wheels may drop ment of igniters, and baffles for guiding charge off, for instance, when alighting on water. The in.—In a cylinder having a combustion chamber which over­ laps a por­ * The following abstracts of complete specifica­ tions of Patents recently published are specially tion only, of compiled by permission of H.M. Stationery Office, th e cylinder from abridgments appearing in the Patent Journal. bore, a pro­ Printed copies of the full specifications can be jection G on obtained from the Patent Office, 25, Southampton th e cylinder Buildings, London, W.2, price one shilling each. head , pre­ Except where otherwise stated, if no illustration ferably over the exhaust valve H, forms a is reproduced the specification is unaccompanied pocket containing between. 10 and 25 per cent. by drawings. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

Month in the Patent Office

Aircraft Engineering and Aerospace Technology , Volume 1 (5): 1 – May 1, 1929

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb029156
Publisher site
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Abstract

184 AIRCRAFT ENGINEERING July, 1929 A Selection from Important Recently Published Aircraf t and Aero Engine Specifications of the charge, and the sparking plug is mounted wheels may be connected to the fuselage by a No . 308,873. Aircraft. Boulton & Paul, therein. The projection G is recessed, if cable so tha t they act as brakes in the water. Ltd. , Riverside Works, and North, J. D., necessary, to provide clearance for the valves, Fo r towing purposes, automatic shutters give 4, The Close, both in Norwich. Feb. 25, 1928, and the dimension L is as small as possible; access to coupling members attached to the No. 5940. [Class 4.] th e invention is especially applicable to the chassis framework. A tail skid 73, Fig. 10, Framework.—For connecting together rods combustion chambers described in Specification has an extension 76 connected by sandows 79 or tubes, particularly in aircraft framework, 148,046. The specification contains several and links 81 to the fuselage. A spade 40 is th e rods or tubes are surrounded at the con­ indicator diagrams showing how smoother normally retained by a bolt 42 rotatable from necting points by sleeves having flat parallel running is produced by the engine, and it is th e cockpit. The spade may be on the landing faces arranged oppositely in two or more pairs, state d that detonation is avoided when the chassis or fuselage, and more than one may be the tube s clearance between the piston top and the provided. The sandows may be replaced by a being bolt­ cylinder head is less than 1/ in.; figures are spring shock-absorber. ed together also given to show to what extent the compres­ wit h the sion ratio must be reduced to avoid detonation flat faces No . 309,074. Aircraft. Soc. Anon. des when the clearance exceeds this amount. directly in Ateliers D'Aviation L. Breguet, 115, Rue de la contact, as Pompe, Paris. March 18, 1929, No. 8761. show n in Convention date, April 4, 1928. Not yet No . 309,297. Internal-combustion en­ Fig. 6, or accepted. Abridged as open to inspection gines . Ricardo, H. R., 21, Suffolk Street, Pall th e flat under Sect. 91 of the Acts. [Class 4.] Mall, London. Oct. 18, 1927, No. 27644. faces may serve as seatings for lugs C2, D2, [Class 7 (ii).] Cars; framework; planes, arrangement of.— as shown in Fig. 4. The sleeves are formed An aeroplane or hydroaeroplane has a separately Cylinders, combustion chambers of, baffles for of magnesium, aluminium or steel, and have constructed hull surrounding the cockpits and guiding charge and arrangement of igniters in.— tapered ends to distribute the stress and are the framing that connects the tail to the main I n a combustion chamber F, which overlaps the secured to the tubes either by shrinking on body, and this framing is formed as a single cylinder bore and is arranged to produce turbu­ or by bolting. The bolts shown in Fig. 4 lence, as described in Specification 148,046, the are surrounded by enlarged bushes A3. Wiring sparking plug is plates P may be secured beneath the lugs C2. located at J in the par t of the head 308,950. Aircraft. Couzinet, R. A. A., closely approached 106, Boulevard Magenta, Paris. Feb. 23, 1928, b y th e piston. The No. 29789. Divided application. [Class 4.] clearance between this part and the Wheels, runners, and skids.—The chassis of piston face should each front wheel of a three-engined aeroplane is not exceed 4 per streamlined in cent. of the stroke, one with the side and the amount of charge entrapped should not engin e frame­ exceed 10 per cent. of the whole charge. If this work 37. Each clearance approaches a minimum of 0·02 in., wheel is slidably a recess F2 may be formed, either in the head mounted in the or the piston, adjacent the sparking plug or a chassis on, a link- girder. A casing of sheet iron 1 stiffened by sparking plug having an appreciable gas capacity work 87, 88, hav­ angle irons carries an engine platform 2, the may be employed. An example is given in ing a fixed pivot undercarriage, and the plane spars 4, which which if this capacity is 1 c.c , the clearance 89 ; one of the extend right across the machine, and is con­ 0·022 inch, the cylinder bore 4 in., the com­ members 87, 88 nected to the tail by a beam 3 which may be pression ratio 5: 1, then good firing will take is connected to formed as a box girder with fluted webs, as place with a 20 per cent. weak mixture. the chassis by shown in cross-section in Fig. 3a. The controls sandows. The pass through this girder. For commercial wheels are of purposes, a detachable hull provided with a large size and the parachute is secured to the frame by three chassis is shaped releasable bolts. t o form a skid Shock-absorbers, applications of.—The lower surface 27 pro­ par t of the detachable hull, which normally vided wit h rollers. rests astride the girder 3, is packed with elastic The axle 86 can material to absorb shock on landing. b e removed through openings 35, and the wheel No . 309,092. Internal-combustion en­ through doors 36. gines . Ricardo, H. R., 21, Suffolk Street, The wheels may Pall Mall, London. Oct. 5, 1927, No. 26321. be positioned by [Class 7 (ii).] members remov­ Cylinders, combustion chambers of, and arrange­ able during flight, so tha t the wheels may drop ment of igniters, and baffles for guiding charge off, for instance, when alighting on water. The in.—In a cylinder having a combustion chamber which over­ laps a por­ * The following abstracts of complete specifica­ tions of Patents recently published are specially tion only, of compiled by permission of H.M. Stationery Office, th e cylinder from abridgments appearing in the Patent Journal. bore, a pro­ Printed copies of the full specifications can be jection G on obtained from the Patent Office, 25, Southampton th e cylinder Buildings, London, W.2, price one shilling each. head , pre­ Except where otherwise stated, if no illustration ferably over the exhaust valve H, forms a is reproduced the specification is unaccompanied pocket containing between. 10 and 25 per cent. by drawings.

Journal

Aircraft Engineering and Aerospace TechnologyEmerald Publishing

Published: May 1, 1929

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