Page:Wright-Patent-US-821393.pdf/10

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the line of flight and extending centrally along the body of the aeroplane in the direc- tion of the elongation of the aeroplane, a ver- tical rudder, and means whereby said rudder is caused to present to the wind that side thereof nearest the side of the aeroplanes having the smaller angle of incidence and of— fering the least resistance to the atmosphere, substantially as described.

12. In a flying-machine, the combination, with an aeroplane, of a normally flat and sub- stantially horizontal flexible rudder, and means; for curving said rudderrearwardly and upwardly or rearwardly and down- wardly with respect to its normal plane, sub- stantially as described.

13. In a flying-machine, the combination, with an aeroplane, of a normally flat and sub— stantially horizontal flexible rudder pivotally mounts on an axis transverse to the line of flight near. its center, springs resisting verti- cal movement of the front edge of said rudder and means for moving the rear edge of said rudder above or below the normal plane thereof, substantially as described.

14. A flying—machine comprising super- posed connected aeroplanes, means or mov- ing the opposite lateral portions of said aero- planes to different angles to the normal planes thereof, a vertical rudder, means for moving said vertical rudder toward-that side of the machine presenting the smaller angle of incidence an the least resistance to the atmosphere, and a horizontal rudder pro- vided with means for, presenting its upper or under surface to the resistance of the atmos- phere, substantially as described.

15. A flying-machine comprising super- posed connected aeroplanes, means for mov— ing the opposite lateral portions of said aero- planes to different angles to the normal planes thereof, a vertical rudder, means for moving said vertical rudder toward that side of the machine presenting the smaller angle of incidence and the least resistance to the at- mosphere, and a horizontal rudder provided presenting its upper or under surface to the resistence of the atmosphere, said vertical rudder being located at the rear of the machine and said horizontal rudder at the front of the machine, substantially as described.

16. In a flying-machine, the combination, with two superposed and connected aero— planes, of an arm extending rearward from arms being parallel and free to swing upward at their rear ends, and a vertical rudder pivotally mounted in the rear ends of said arms, substantially as described.

17. A flying-machine comprising two su— perposed aeroplanes, normally flat but flexi- ble, upright standards connecting the mar- gins of said aeroplanes, said standards being connected to said aeroplanes by universal joints, diagonal stay-wires connecting the opposite ends of the adjacent standards, a rope extending along the front edge of the lower aeroplane, passing through guides at the front corners thereof, and having its ends secured to the rear corners of the upper aero- plane, and a rope extending along the rear edge of the lower aeroplane, passing through guides at the rear corners thereof, and having it ends secured to the front corners of the upper aeroplane, substantially as described.

18. A flying—machine comprising two su- perposed aeroplanes, normaly flat but flexi- ble, Upright standards connecting the mar— gins of said aeroplanes, said standards being connected to said aeroplanes by universal joints, diagonal stay-wires connecting the opposite ends of the adjacent standards, a rope extending along the front edge of the lower aeroplane, passing through guides at the front corners thereof, and having its ends secured to the rear corners of the upper aero- plane, and a rope extending along the rear edge of the lower aeroplane, passing through gu1des at the rear corners thereof, and having its ends secured to the front corners of the upper aeroplane, in combination with a verti- cal rudder, and a tiller-rope connecting said rudder with the rope extending along the rear edge of the lower aeroplane, substan— tially as described.

ORVILLE WRIGHT.
WILBUR WRIGHT.

Witnesses:

Chas. E. Taylor,
E. Earle Forrrer.