Patent US-1849-Smith
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It's not clear there's an American patent here, but there's probably something. Both Seifert identify it as being in 1849, by a J. Henry Smith. But I can't find the name anywhere. We don't Lilienthal museum's Seifert reports that this is a "Tethered helicopter":
- On a vertical axis there was a parachute at the top, which was firmly attached to the gondola for several people below. In between was the rotor. It was driven by an electric motor. The electricity required was generated on earth and fed through the shackle cable. The device was designed as a military observation platform
- Image source: Source 1, p. 46 Research: Seifert
- Inventor location: Princeton, NJ
- I'm not finding it on google patents. nor neilson. nor brewer. we could search the USpto
Sources
J. Henry Smith Fesselhubschrauber
- An einer senkrechten Achse befand sich oben ein Fallschirm, der fest mit der unten angebrachten Gondel für mehrere Personen verspannt war. Dazwischen befand sich der Rotor. Er wurde durch einen Elekromotor getrieben. Die erforderliche Elektrizität wurde auf der Erde erzeugt und über das Fesselkabel z
| Year filed | |
|---|---|
| Year granted | 1849 |
| Office | US |
| Patent number | pi |
| Inventors | Henry J. Smith |
| Inventor country | US |
| Applicant person | |
| Applicant firm | |
| Applicant type | |
| Applicant is inventor? | 1 |
| Original title | Helicopter |
| English title | Helicopter |
| Tech fields | helicopter |
| Filing date | |
| Full specification filed date | |
| Application number | |
| Grant date | |
| Granted? | 0 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | |
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| IPCs | |
| CPCs | |
| Family year | 1849 |
| First filing? | |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | |
| Number of diagram pages | |
| Number of figures | |
| Number of claims |
