Patent US-1917-1225711
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The invention refers to the structure of components of an aerofoil. Some claims refer to nose-piece (a strong/rigid front edge I believe), and others to ribs or spars. Refers to "aerofoils of aeroplanes of the variable camber type", either "the main supporting planes or auxiliary planes employed for controlling and stabilizing purposes." The design proposed is a rigid front edge of the aerofoil and a flexible deformable rear edge so the tilt aka angle-of-incidence can be changed and so can the camber. The patent text refers to what this can accomplish:
- expanding the range of speeds of the aircraft both horizontally and vertically
- "to extend its range of angles of ascent and descent"
- to raise its maximum altitude
- check original for more
- Tech classification: CPC B64C3/48: Varying camber by relatively-movable parts of wing structures -- a category that expanded a lot later
- Inventor location: residing at Bisham Lodge, Speer Road, Thames Ditton, in the county of Surrey, England
- Inventor citizenship: a subject of the Queen of the Netherlands
Sources
- Patent 1225711 document and bibliographic info on espacenet
- Patent 1225711 at google patents
| Year filed | 1916 |
|---|---|
| Year granted | 1917 |
| Office | US |
| Patent number | 1225711 |
| Inventors | Alexander Albert Holle |
| Inventor country | GB, NL |
| Applicant person | Alexander Albert Holle |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Plane and the like for aeroplanes |
| English title | Plane and the like for aeroplanes |
| Tech fields | aerofoil, camber, shape, angle of incidence |
| Filing date | December 22, 1916 |
| Full specification filed date | |
| Application number | 13846416 |
| Grant date | May 8, 1917 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | |
| Assigned to | Varioplane Company |
| National tech categories | USPC 244/219 |
| IPCs | IPC B64C3/48, IPC B64C3/00 |
| CPCs | CPC B64C3/48 |
| Family year | 1916 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 47861406 |
| INPADOC family ID | 43248158 |
| Number of text pages | |
| Number of diagram pages | |
| Number of figures | |
| Number of claims |
