Patent IN-1912-78
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"Vortex lifters" from previous invention modified such that "the lifters have a plurality of blades or vanes all of which are radically or approximately radially arranged and inclined in the direction of their path of rotation, i.e. with their tips in advance of their roots, and are provided with means for preventing the inflow of any air at their roots or bases, whereby the flow of the discharged air at the desired angle is not disturbed."
Supplementary in two ways:
- Refers to an earlier Indian patent, IN-1910-262
- Concept and diagrams mirror Patent GB-1911-5162
- The latter, in turn, describes itself as a continuation of Patent GB-1909-12556, which we might expect the prior Indian patent to mirror.
Inventor location: "Sunny Bank", Trowbridge, Wilts, England
Inventor occupation: Accountant
Source
| Year filed | 1912 |
|---|---|
| Year granted | 1912 |
| Office | IN |
| Patent number | 78 |
| Inventors | Thomas Augustus Dring |
| Inventor country | GB |
| Applicant person | |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Improvements in Flying Machines |
| English title | Flying Machines |
| Tech fields | propulsion, propeller, aerodynamics, airplane |
| Filing date | 1912-02-12 |
| Full specification filed date | |
| Application number | 78 |
| Grant date | 1912-03-11 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | IN-1910-262, Patent GB-1911-5162 |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | H. V. Williams & Co. |
| Assigned to | |
| National tech categories | |
| IPCs | |
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| Family year | |
| First filing? | |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
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| Number of text pages | 3 |
| Number of diagram pages | 3 |
| Number of figures | 5 |
| Number of claims | 5 |
