Patent FR-1851-12226
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Describes an aerostat propelled by a motor; anticipates Giffard's 1852 demonstration of such a vessel.
- Hydrogen gas
- Elongated (cylindrical) balloon shape with tapered (conical) ends; 6 m diameter, 40 m length
- Basket/machinery (charge) suspended below,
- Steam engine
- Propeller, 4 meter diameter
Giffard suggests his vessel can transport 1 or 2 people about 30 km, at a speed of 8–9 leagues per hour (= 10 m/s). (p. 9)
He goes on to provide detailed calculations showing expected force, resistance, maximum load, fuel and water requirements, etc.
- Inventor location: Paris (29, rue du Colisée, Seine)
The designation of this invention as class 6.4 comes from INPI; it is not necessarily contemporary.
Sources
- Application de la vapeur à la navigation aérienne Available online from IUT de Bordeaux. Does not include diagrams; maybe there were none; or maybe this apparent republication (1851) omitted them.
- Advanced Research page of INPI website Original patent document and bibliography entry on espacenet 15 ans
- Inventor location: Paris (29, rue du Colisée, Seine)
Year filed | 1851 |
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Year granted | 1851 |
Office | FR |
Patent number | 12226 |
Inventors | Henri Giffard |
Inventor country | FR |
Applicant person | |
Applicant firm | |
Applicant type | |
Applicant is inventor? | 1 |
Original title | application de la vapeur à la navigation aérienne |
English title | application of steam to aerial propulsion and navigation |
Tech fields | LTA, navigation, propulsion, steam |
Filing date | 1851-08-20 |
Full specification filed date | |
Application number | |
Grant date | 1851-11-08 |
Granted? | 1 |
Publication date | |
Supplementary to patent | |
Related to aircraft? | Yes |
Serial number | |
Patent agent | |
Assigned to | |
National tech categories | FR 6.4 |
IPCs | |
CPCs | |
Family year | 1851 |
First filing? | |
Cites these patents | |
Citations from after 1930 | |
Application ID | |
INPADOC family ID | |
Number of text pages | 29 |
Number of diagram pages | 0? |
Number of figures | 0? |
Number of claims |