Patent GB-1913-20921
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This patent for a hollow propeller shaft, through which a gun can be fired, is the first of a pair that was filed internationally by DMG. The second British filing is Patent GB-1914-10517.
It is purely coincidence, one hopes, that the digits of the patents' serial numbers in Britain and Germany are permutations of each other.
This patent was granted in one month, record time (?) for the British office. The successor was granted quickly, too.
Sources
- Original patent document and bibliography entry on espacenet
- on google patents
| Year filed | 1913 |
|---|---|
| Year granted | 1913 |
| Office | GB |
| Patent number | 20921 |
| Inventors | |
| Inventor country | DE |
| Applicant person | |
| Applicant firm | Daimler-Motoren-Gesellschaft |
| Applicant type | COMPANY |
| Applicant is inventor? | |
| Original title | Improvements in and relating to Aerial Craft |
| English title | Aerial Craft |
| Tech fields | gun, propeller, military |
| Filing date | 1913-09-16 |
| Full specification filed date | |
| Application number | |
| Grant date | 1913-10-16 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | Patent DE-1913-290120 |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | Jensen & Son |
| Assigned to | |
| National tech categories | |
| IPCs | IPC B64D7/02 |
| CPCs | CPC B64D7/02 |
| Family year | 1913 |
| First filing? | 0 |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 1 |
| Number of claims | 2 |
