Patent FR-1912-446233
Reference is made herein to a German patent dated 27 July 1911.
This has to do with the situating of the bulk of the aircraft obliquely to the main thrust of wind resistance, allowing said factor to primarily have its calculated effect on the wings alone.
Reference is made to the "models" of Antoinette, Harlan, and "Nieuport" (likely Édouard Nieuport though possibly Charles Nieuport. In all of these the transverse of "interior" wing, that in the direction of a turn, is slightly raised, reducing its force of ascension, and that of the "exterior" wing, that opposite to the direction of a turn, is slightly lowered, thereby increasing the lift effect on that side. This all has the undesired effect of increasing the overall horizontal resistance. This presents the same disadvantageous effects manifest in the wing warping ("gauchissement") processes seen in the model of "Grade" (likely Hans Grade of Hans Grade Fliegerwerke). By way of rudders, as well, much forward momentum, that is "translation", is lost, in the interests of stability.
(The present invention, by putting two distinct control surface planes on each wing, realizes a means of navigation which increases the force of ascension while not increasing horizontal resistance. That is, the longeron of the "exterior" wing is lowered, augmenting the force of ascension, while the point of the same wing is simultaneously raised, minimizing the horizontal resistance. The desired oblique position is thusly achieved while avoiding the slowing ("freinage") occurring in the operation of earlier aircraft types.
(Each wing's "angle of attack" is changed, either along its entire length or only on its exterior end. These articulations allow for both transversal and longitudinal navigation without the use of a special vertical rudder.)
Sources
- Original patent document and bibliography entry on espacenet
- Inventor location: No. 202 Siegfried Strasse, Berlin-Lichtenberg, Germany
| Year filed | 1912 |
|---|---|
| Year granted | 1912 |
| Office | FR |
| Patent number | 446233 |
| Inventors | |
| Inventor country | DE |
| Applicant person | |
| Applicant firm | E. Rumpler Luftfahrzeugbau G.m.b.H. |
| Applicant type | COMPANY |
| Applicant is inventor? | Yes |
| Original title | Appareil de direction pour machines volantes |
| English title | Steering apparatus, that is, articulated wing development, for flying machines |
| Tech fields | navigation, wings, aerodynamics, airplane, monoplane, airfoil, steering |
| Filing date | 1912/07/18 |
| Full specification filed date | |
| Application number | 446233D |
| Grant date | 1912/11/29 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | Patent DE-1911-263643 |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | L. Chassevent |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C3/38 |
| CPCs | CPC B64C3/385 |
| Family year | 1912 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 19264580 |
| INPADOC family ID | 5334402 |
| Number of text pages | 2 |
| Number of diagram pages | 0 |
| Number of figures | 0 |
| Number of claims | 1 |
