Patent US-1894-516581
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"The rotary sail for flying machines [...] consists of an axle provided with arms and around them are arranged lifting surfaces, which are turned at slight angles during the revolution by a fixed eccentric with an eccentric strap and rods. The rotation of the rotary sail when the axle is in the horizontal position produces the lifting power for rising and soaring in the air and in addition hereto under certain circumstances the production of power for driving in a horizontal direction for the purpose of production forward motion in the direction of the axle."
Motion communicated to sails from a central revolving wheel.
Sources
- [US516581 https://patents.google.com/patent/US516581A/en] on Google Patents
- Short's DB espacenet
Inventor location (imputed by HistPat): Brünn, Austria-Hungary
| Year filed | 1893 |
|---|---|
| Year granted | 1894 |
| Office | US |
| Patent number | 516581 |
| Inventors | Georg Wellner |
| Inventor country | AH |
| Inventor location | |
| Applicant person | |
| Applicant firm | |
| Applicant type | |
| Applicant is inventor? | 1 |
| Original title | Flying Apparatus |
| English title | Flying Apparatus |
| Tech fields | propulsion, sail, frame, takeoff, navigation |
| Filing date | 1893-06-17 |
| Full specification filed date | |
| Application number | |
| Grant date | 1894-03-13 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | Patent DE-1893-71903, Patent FR-1893-229796, Patent GB-1893-10405 |
| Related to aircraft? | -1 |
| Serial number | 478183 |
| Patent agent | 1 |
| Assigned to | |
| National tech categories | USPC 416/108 |
| IPCs | IPC B64C11/006 |
| CPCs | CPC B64C11/006 |
| Family year | 1894 |
| First filing? | |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 46443862 |
| INPADOC family ID | |
| Number of text pages | 2 |
| Number of diagram pages | 2 |
| Number of figures | 2 |
| Number of claims |
