Patent GB-1909-6414

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Description from google patents: "In an arrangement of blades for a screw propeller, each blade is formed with a continuously curved surface on one side, and with a rib e at right angles to the direction of motion on the other side, formed by the intersection of two curved surfaces c, d. The blades are arranged stepwise in relation to each other, so that the distance between adjacent blades is greater at the front than at the rear . . ."

  • Definitely intended for aircraft
  • Tech class CPC B64C11/48: Units of two or more coaxial propellers
  • Inventor location: 14 Howick Place, Victoria Street, City of Westminster; Civil engineer


Year filed 1909
Year granted 1910
Office GB
Patent number 6414
Inventors Henry Bridges Molesworth
Inventor country GB
Applicant person Henry Bridges Molesworth
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Improvements in or connected with Aerial Machines and Propellers
English title Improvements in or connected with Aerial Machines and Propellers
Tech fields aerial propellers
Filing date 1909-03-17
Full specification filed date 1909-09-17
Application number 190906414D
Grant date 1910-03-17
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent G. F. Redfern & Co.
Assigned to
National tech categories
IPCs IPC B64C11/48
CPCs CPC B64C11/48
Family year 1909
First filing? 1
Cites these patents
Citations from after 1930
Application ID 23579449
INPADOC family ID 11074945
Number of text pages 2
Number of diagram pages 1
Number of figures 4
Number of claims 1