Patent FR-1910-420463

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This patent's original document makes priority date reference to a German patent filed 1909-05-03, said claimed patent therefore likely being the parent of Patent HU-1910-55431‎ and Patent GB-1910-12819‎ as well, and with yet other offspring patents likely to be found.

This invention features a device for the maintenance of airplanes in the balanced position, characterized by the fact that the surfaces of lift and support are interrupted at the medial point of the apparatus, each side being able to be set at the point separately an independently from one another under the entire angle of inclination desired relative to the trajectory of propulsion, in the interests of being able to constantly maintain the totality of the apparatus in a balanced horizonatl position all relative to the ascension and the descent of the aircraft as well as any turns.

The lift surfaces, of the biplane in the example given, are linked to one another in the manner of a parallelogram by way of articulated connection stems situated between the wings by way of fixed and knotched arc segments in a manner appropriate to the connection stems of the knotched wheels meshing or gearing in these segments in a manner actuated from the pilot seat and having the ability to be set at point relative to the two sides independently of one another under whichever angle of inclination can be precisely fixed relative to the direction of the propulsion.

When the airplane inclines upwardly, the lift surface position necessary for restoring equilibrium is given automatically to the surfaces of control, rudders and so forth, by way of oscillation or displacement of pendulum via an inclination change mechanism with knotched pinions.

When the airplane inclines, an inclination change mechanism with knotched pinions is managed therein by the oscillation of a pendulum with control derived from the motor shaft or with a special command motor designed in the interests of automatic angular adjustment of all pertinent surfaces, whether of lift or control, angular positioning in the interests of re-establishment of the aircraft's balanced position.

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Year filed 1910
Year granted 1910
Office FR
Patent number 420463
Inventors Hans Lohmann
Inventor country DE
Applicant person Hans Lohmann
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Dispositif pour maintenir les aéroplanes dans la position d'équilibre
English title Device for keeping airplanes in the balanced position, that is, for the automatic maintainance of equilibrium by way of the pendulum
Tech fields Airplane, Equilibrium, Stability, Subsystem, Sustentation, Rudder, Lift, Pendulum, Automatic stability, Cables, Triplane
Filing date 1910/05/03
Full specification filed date
Application number 420463D
Grant date 1910/11/24
Granted? Yes
Publication date 1911/01/31
Supplementary to patent Patent DE-1909-05-03 Hans Lohmann
Related to aircraft? Yes
Serial number
Patent agent De Bongé
Assigned to
National tech categories FR 6.4
IPCs IPC B64C1/00, IPC B64C17/00
CPCs CPC B64C17/00, CPC B64C2700/6218
Family year 1910
First filing? Yes
Cites these patents
Citations from after 1930
Application ID 19239348
INPADOC family ID 5312930
Number of text pages 5
Number of diagram pages 1
Number of figures 6
Number of claims 1