Page:Wright-Patent-US-821393.pdf/9

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multaneously imparting such movement to said lateral marginal portions, substantially as described.

4. In a flying-machine, the combination, with parallel; superposed aeroplanes, each having lateral marginal portions capable of movement to different positions above or be- low the normal plane of the body of the aero- plane, such movement being a out an axis transverse to the line of flight, whereby said lateral marginal portions may be moved to different angles relative to the normal plane of the body of the aeroplane, and to different angles relatively to each other, so as to pre- sent to the atmosphere different angles of in- cidence, of uprights connecting said aero- planes at their edges, the uprights connecting the lateral portions of the aeroplanes being connected with said aeroplanes by flexible joints, and means for simulaneously impart- ing such movement to said lateral marginal portions, the standards maintaining a fixed distance between the parts which they con— nect, whereby the lateral portions on the same side of the machine are moved to the same angle substantially as described.

5. In a flying-machine; an aeroplane hav- ing substantially the form of a normally flat rectangle elongated transversely to the line of flight in combination with means for im- parting to the lateral margins of said aero- plane a movement about an axis lying in the body of the aeroplane perpendicular to said lateral margins, and thereby moving said lat- eral margins into different angular relations to the normal plane of the body of the aero- plane, substantially as described.

6. In a flying-machine the combination, with two superimposed and normally parallel aeroplanes, each having substantially the form of a normally flat rectangle elongated transversely to the line of flight, of upright standards connecting the edges of said aero- planes to maintain their equidistance, those standards at the lateral portions of said aero- planes being connected therewith by flexible joints, and means for simultaneously impart- ing to both lateral margins of both aeroplanes a movement about axes which are perpendic- ular to said margins and in the planes of the bodies of the respective, aeroplanes, and thereby moving the lateral margins on, the opposite sides of the machine into different angular relations to the normal planes of the same side of the machine moving to the same angle, and the margins on one side of the ma- chine moving to an angle different from the angle to which the margins on the other side of the machine move, substantially as de- scribed.

7. In a flying machine the combination with an aeroplane, and means for simultane- ously moving the lateral portions thereof into different angular relations to the normal plane of the body of the aeroplane and to each other, so as to present to the atmosphere- different angles of incidence, of a vertical rudder, and mneans whereby said rudder is caused to present to the wind that side there of nearest the side of the aeroplane having. the smaller angle of incidence and offering, the least resistance to the atmosphere, substan- tially as described.

8. In a flying-machine, the combination with two superposed and normally parallel aeroplanes, upright standards connecting the edges of said aeroplanes to maintain their equidistance, those standards at the lateral portions of said aeroplanes being connected therewith by flexible joints and means for si- multaneously moving both lateral portions. of both aeroplanes into different angular re- lations to the normal planes of the bodies of the respective aeroplanes, the lateral por tions on one side of the machine being moved to an angle different from that to which the lateral portions on, the other side of the ma— chine are moved, so as, to present different. angles of incidence at the two sides of the ma- chine, of a vertical rudder, and means where- by said rudder is caused to present to the wind that side thereof nearest the side of the aeroplanes having the smaller angle of inci— dence and offering the least resistance to the atmosphere, substantially as described.

9. In a flying—machine, an aeroplane nor- mally flat and elongated transversely to the line of flight, in combination with means for imparting to said aeroplane a helieoidal warp around an axis transverse to the line of flight. and extending centrally along the body of the aeroplane in the direction of the elongation of the aeroplane, substantially as described.

10. In a flying-machine, two aeroplanes, each normally flat and elongated trans- versely to the line of flight, and upright standards connecting the edges of said aero— planes to maintain their equidistance, the connections between said standards and aero- planes being by means of flexible joints, in combination with means for simultaneously imparting to each of said aeroplanes a heli- coidal warp around an axis transverse to the line of flight and extending centrally along the body of the aeroplane in the direction of the elongation of the aeroplane, substantially as described.

11. In a flying-machine, two aeroplanes, each normally flat and elongated trans— versely to the line of flight, and upright standards connecting the edges of said aero— planes to maintain their equidistance, the connections between such-standards and aeroplanes being means of flexible joints, in combination with means for simultane- ously impartng to each of said aeroplanes a helicodial warp around an axis transverse to