Patent BE-1914-268199
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« La largeur de la pale est constante jusqu’à son point d’attache au moyeu, le contour extérieur est parabolique. »
“The width of the blade is constant up to its point of attachment to the hub, the outer contour is parabolic.”
Sources
- Inventor location: Grand'Rue, 159, Chaville, France (likely Seine; "Grand'Rue" being an odd construction which does crop up here and there throughout the francophone world)
- Note : Élis. dom à Bruxelles (This may or may not be a patent agent.)
| Year filed | 1914 |
|---|---|
| Year granted | |
| Office | BE |
| Patent number | 268199 |
| Inventors | C. Delalandre |
| Inventor country | FR |
| Inventor location | |
| Applicant person | C. Delalandre |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Hélice aérienne |
| English title | Aerial propeller |
| Tech fields | propellers, design, aerodynamics |
| Filing date | 1914/06/02 |
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| Granted? | Yes |
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| Supplementary to patent | |
| Related to aircraft? | Yes |
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| National tech categories | BE K |
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| Family year | 1914 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
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