Patent GB-1909-7792

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For balance and control, both horiz and vertically. Hinged flaps on wings, and (I think) propellers paired and rotating in opposite directions

  • Inventor occ and location: Engineer; of Thanet House, Temple Bar, London, W.C.
  • Signed Oct 1, registered as "filed" on the same day by patent office
  • The filer seems to be also the patent agent, or closely related to the patent agency
  • As often in other British patents, the last claim is just formalistic punctuation

Sources


Year filed 1909
Year granted 1910
Office GB
Patent number 7792
Inventors James Dennis Roots
Inventor country GB
Applicant person James Dennis Roots
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Improvements in or relating to Flying Machines
English title Improvements in or relating to Flying Machines
Tech fields stability, control, propellers, propeller blades
Filing date 1909-04-01
Full specification filed date 1909-10-01
Application number 190907792D
Grant date 1910-03-17
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent J. D. Roots & Co.
Assigned to
National tech categories
IPCs IPC B64C13/00
CPCs CPC B64C2700/6256, CPC B64C13/00
Family year 1909
First filing? 1
Cites these patents
Citations from after 1930
Application ID 23580199
INPADOC family ID 11075601
Number of text pages 3
Number of diagram pages 1
Number of figures 4
Number of claims 4