US1578073A - Structure and composition of the fuselages, and parts depending thereon for aeroplanes - Google Patents

Description

March 23 ,1926. 1,578,073

G. CAPRONI ET AL STRUCTURE AND COMPOSITION OF THE FUSELAGES AND PARTS DEPENDING THEREON FOR AEROPLANES Filed August 4, 1923 2 Sheets-Sheet 1 n 7 Fig.1.

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G. CAPRONI ET AL STRUCTURE AND COMPOSITIQN OF THE FUSELAGES AND PARTS DEPENDING THEREON FOR AEROPLANES Filed ugus 4, 1923 2 Sheets-Sheet 2 Fig.5.

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STRUCTURE AND COMPOSITION QF THE FUSELA GESfAND PARTS DEPENDING 4 TEEBEON :FOR AEROP-LANES. 5

Application and August 4, i933. Serial-No. 655,762.

, Rome, in the Kingdom of Italy, UMBER'ro 11. NOBILE, asubject-of'the Kin of Italy, and

' resident of Rome, in the Kin gdom of Italy, and Rononno VERDUZIO, a subject of the King of Italy, "and resident of Rome, ii the Kingdom of Italy, have invented certain-newand 1o useful Improvements in the Structure'and Composition of the Fuselages', and Parts Depending Ther'eon for AeropIanes, .of

which the following isa specification.

The present invention relates to improves ments in the structure "and compositio thefuselage for aeroplanes and of the-parts connected to same, said improvements com-. prising also a particular arrangement of the controlling members for the rudders and of.. the skid and having ,the object of conferring to the single partsa great resistance and such ashape as to securea good netration, facilitating at the same time therrconstruction. 1

'- In the annexed drawing-illustrating schematicalLy a practical embodiment of the invention:

:Fig. 1' shows in side elevation an aeros I p 0 tion m a removable way so that 1t may easily be taken oft. Y

plane fuselage with the covering partially removed;

Fig. 2.is a top view of Fig. 1; Fig; 3 is' a perspectiveview of a section of the fuselage; Fig. 4 shows a detail of the rigid cover- Fig. 5'showsthe arrangement of the wings of the aeroplane seen from the top; I Figs. 6, 'Z and '8 refer to details ofconstruction-of the casing containing the controlling organs for the rudders. i .As it appears from Figs. 1 and 2, the fuselage 1 consists of a series of rigid cross elements 2 having anannular'shape and connected by longitudinal ribs 3, the. whole of the framework thus'formed bearing the coveringi f'which may either be arranged between the rings 2. and the ribs 3, as it is shown in Figs. 3 and 4, or fastened outside the longitudinal ribs by means of riveted joints 5.-- r t helongitudinal ribs3 arranged in the sense of the stream lines'as wellsas the rings are formed of section irons; the rings have i the plain annular structure..2 or may be formed of lattice according ,to a'. l0ngitud1na1 diametral may "be performed after having removed the work, as shown in 7, or

of adiaphragm To 'facilitate the riveting of the covering on the aforesaid stiffening elements, the fuselage is-diyided intotwo portions 6 and 8 plane, for instance by means of a longitudinal horizontal plane 9, as it is shown in Fig. 3. In this way is obtained that eachiof the two halves of the .fuselage may be built up and finished independently,- from the other, said halves being afterwards strongly L connected by means ofexternal rivetings on.

the borders 10. i If of The aforesaid system of construction may be applied also to the supporting and steer- 7. ing surfaces of the aeroplane, and also-said I surfaces may be formed of a covering 'fastened to a' double series of ribs, of which the external ones 11 are arranged in the direction of the motion, and the internal ll ones 12 1n the transversal direction, as it is shown in Fig. 5 with particular reference to the ,'horizontal rudder. I I

Another provement in the construction of the fuselage consists in that its rear porti'on 13, having a conical or any other suit able shape, is connected to the front porfinishing of the fuselage being carried out more easily and facilitates the assembling of theicontrollin organs .of,the movable surfaces. and of p e skid, which assembling conical tail portion from the front art of the fuselage. Moreover,, the possib ty of taking off the said conical ortion renders more ea both the inspection of the rear organs 0 the aeroplane and their eventual repairing.

- The invention comprises also some improv'cments relating to the arran ement of the controlling. organs of the ru dersf'and to the arrangement. of'the skid.

As it appears from the Figs. 6, '7 and 8 the controlling organs of the rudders are arranged in a c 'g 14 crossed by the shaft 15 of the vertical rudder' 16 and by the shaft 17 of the horizontalrudder 18, the extension '19 of said -casing-l'ieing fastened 'to the vertical rudder, as"

'15 of the corresponding rudder 54mg. L)

The ropes 20 ddintrolling the horizontal rudderare fastened to the ends 21 of the lever arms 22connected to the shafte17 of said rudder, and the ropes; controlling the vertical rudder are fastened to the ends 23 of the lever arms 24 connected to the shafl';

" The easing is applied to the rear as to be able t9? rotate in the longitudinal middle plane of symmetgy when rotating upward, 't cofiresses either directly tr by means of a l' 27 asemi elliptical spring 28, one end of which is connected'to the link andwtheyotheir elnd is rigidly fastened to the fuse] ge. Wit the aforesaid device is obtained t edamping of the shock of. the skid against the ground when the aeroplane is landing. I

Claim- Improvedstructure for aeroplanes; characterized in that the fuselage is formed'of two halves symmetrical to a longitudinal plane passing through its axis, the cross girders consisting of half ringswxecuted in lattice work whereon are fastened-the longitudinal ribs and the outer coveringbthe said two h-alves being joined together by means of riveted joints upon having been built up of thmapparatus;

separately;

In testimony whereof we have aflixed our signatures this 14th day of July, 19.23.

GIANNI ,CAPRONI. UMBERTO NOBILE. 'RODOLFO VERDUZIO.

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