Joseph Hofmann
Joseph Hofmann was an aero inventor, a “Counselor of the Government” addressed at No. 1, Lichterfeldstrasse, Berlin, Prussia, German Empire.[1] He did some work with the “compression” of air, under wings, in the furtherance of lift.[2] This usage of the word “compression” turns up very little in our patent data, though we suspect that at least one of the patent families coming from this inventor may help us flesh that out. “Compression”, in this sense, is a near-opposite to “rarefaction”. In terms of theory, published, see Armour, 1876, Air compression under wing-planes.
Hopefully, patent content will allow us to viably determine most or all “J. Hofmann” results as indeed pertinent to this Joseph Hofmann. Some patents which are definitively those of Joseph Hofmann make use of the abbreviated “J. Hofmann” here and there on within their documents. It is only the variety in content, along with the apparent lag between the non-German filings and the German ones, which lead to a continued need for disambiguation.
Patents whose inventor or applicant is Joseph Hofmann
- Patent GB-1894-11941 (English title: Propelling and regulating)
- Patent GB-1895-22011 (English title: Aerial Machines, Supplementary to patent: Patent GB-1894-7919 • Patent GB-1894-11941)
- Patent GB-1894-7919 (English title: Aërostation, and Apparatus employed therefor, Filing date: 1894-04-21)
- Patent CH-1894-8470 (English title: Flying machine, Filing date: 1894-04-23)
- Patent HU-1896-9899 (English title: Method and apparatus for compressing air under airplanes to facilitate flight, Filing date: 1896-01-06)
- Patent DE-1902-143820 (English title: Wings for flying machines, Filing date: 1902-06-01)
- Patent DE-1902-141656 (English title: screw propeller, Filing date: 1902-06-07)
- Patent GB-1902-14116 (English title: Improvements in Aeroplanes, Kites and the like., Supplementary to patent: Patent DE-1902-143820, Filing date: 1902-06-21)
- Patent US-1902-827017 (English title: Wing of flying machines, Filing date: 1902-06-27)
- Patent DE-1905-175477 (English title: Improvement of screw propellers, Supplementary to patent: Patent DE-1902-141656, Filing date: 1905-06-05)
- Patent DE-1906-175478 (English title: Innovation in flying machines -or- flying machines with air tanks, Filing date: 1906-01-03)
- Patent DE-1907-191433 (English title: Device for taking off hang-gliders, Filing date: 1907-01-07)
References
| Names | Joseph Hofmann |
|---|---|
| Birth date | |
| Death date | |
| Countries | CH, DE, GB, HU, US |
| Locations | No. 1, Lichterfeldstrasse, Berlin, Prussia, German Empire |
| Occupations | |
| Tech areas | Airplane, Wings, Aerodynamics, Compression, Propellers |
| Affiliations | |
| Wikidata id |
