Patent US-1892-503026
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A propeller which is only partly submerged in water, and may be removed from the water by closing up its blades like an umbrella. Operates on the "sculling principle", has two sets of blades revolving independently in opposite directions which enables some steering control with them.
- Inventor location: Firth, Lancaster county, NE (FIPSloc=31109, imputed by HistPat)
Sources
- Patent 503026 document and bibliographic info on espacenet
- Patent 503026 at google patents
| Year filed | 1892 |
|---|---|
| Year granted | 1893 |
| Office | US |
| Patent number | 503026 |
| Inventors | George O. Adams |
| Inventor country | US |
| Applicant person | George O. Adams |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Scull-propeller |
| English title | Scull-propeller |
| Tech fields | marine propulsion |
| Filing date | October 25, 1892 |
| Full specification filed date | |
| Application number | |
| Grant date | 1893-08-08 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | .5 |
| Serial number | 449993 |
| Patent agent | Munn & Co. |
| Assigned to | |
| National tech categories | |
| IPCs | |
| CPCs | CPC B64C27/54 |
| Family year | |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | 0 |
| Application ID | 46420456 |
| INPADOC family ID | |
| Number of text pages | 2 |
| Number of diagram pages | 2 |
| Number of figures | 2 |
| Number of claims | 3 |
