Patent NZ-1909-26981

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Airplane with multi-part wing assembly, mounted on frame constructed of parallel vertical triangles. Small wings are hinged and attached to springs at the rear of the wings, so that they are elevated when the airplane travels at high speed but fall when it slows down. These hinged wings (i.e. automatic elevators) are therefore supposed to ease descents and provide additional stability if forward motion is suddenly disrupted in flight.

  • Inventor location: Wellington, NZ
  • Inventor occupation: Mechanic

Patents which are supplementary to this one


Year filed 1909
Year granted 1910
Office NZ
Patent number 26981
Inventors William John Hastings Beach
Inventor country NZ, AU
Applicant person William John Hastings Beach
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title An Improved Aeroplane
English title Aeroplane
Tech fields airplane, airfoil, lift, frame, propeller, wheels, springs, elevator, stability, landing, whole, aerodynamics, automatic stability
Filing date 1909/12/02
Full specification filed date
Application number
Grant date
Granted? Yes
Publication date 1910/06/16
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent Henry Hughes
Assigned to
National tech categories NZ 90.3
Family year 1909
First filing? Yes
Cites these patents
Citations from after 1930
Application ID
Number of text pages 6
Number of diagram pages 2
Number of figures 6
Number of claims 5