Patent GB-1913-16621
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Year filed | 1913 |
---|---|
Year granted | 1913 |
Office | GB |
Patent number | 16621 |
Inventors | Karl Pollacsek |
Inventor country | HU |
Applicant person | Karl Pollacsek |
Applicant firm | |
Applicant type | INDIV |
Applicant is inventor? | 1 |
Original title | Improvements in or relating to Propellers for Flying Machines and the like |
English title | Superimposed propellers rotating in opposite directions, avoiding uneven strain, suitable (directly) for lift as well as propulsion |
Tech fields | propellers, lift, propulsion, helicopter |
Filing date | 1913-07-19 |
Full specification filed date | |
Application number | 191316621D |
Grant date | |
Granted? | 0 |
Publication date | |
Supplementary to patent | Patent CH-1912-59557 |
Related to aircraft? | 1 |
Serial number | |
Patent agent | Kilburn & Strode |
Assigned to | |
National tech categories | |
IPCs | IPC B64C27/54 |
CPCs | CPC B64C27/54 |
Family year | 1913 |
First filing? | 0 |
Cites these patents | |
Citations from after 1930 | |
Application ID | 23654359 |
INPADOC family ID | 11139689 |
Number of text pages | 3 |
Number of diagram pages | 1 |
Number of figures | 3 |
Number of claims | 3 |
Sources
- Bibliographic data via Espacenet
- Original via Espacenet
- Inventor location: “Dr. Karl Pollacsek”, of 1, Maria-Valeria-ucza, Budapest, Hungary, was a lawyer.
("Helicopter" is not spelled out here, and neither is "hybrid", though applicability of the propellers to lift, or perhaps rather ascension, is made fairly explicit. Reference is made herein to Patent CH-1912-59557.)