Paul Káposztás

* Rozsnyó, June 29, 1893 – † Budapest, September 4, 1957 / mining engineer, inventor, university lecturer ; ; He graduated from the Rozsnyó gymnasium. He began his higher education in 1912 at the Mining and Forestry College in Selmecbánya. During World War I, he worked as an engineer at the Serbian military mining company (Majdanpek, Rudnok), then at the Austrian altar drives. In 1920, he received a diploma from the Sopron Mining College. From 1920, he was a plant engineer at the Királd-Putnok coal mines. In 1927, he received a doctorate in geology from the Budapest University of Science and Technology. Between 1927 and 1934, he was the director and chief engineer of the Majdanpek copper mine in Serbia. After his return, he was an expert in the construction of the tunnel under the Danube in Újpest by the Budapest Waterworks. In connection with this work, he was the first to draw attention to the effect of light refraction during measurements made in compressed air, and from 1938 he became involved in the work of shaft deepening and mining civil engineering (Lyukóvölgyi freezing shaft deepening, etc.). After World War II, between 1946 and 1949, he was the technical director of the nationalized coal mines. In 1946, he obtained a private teacher's qualification at the Budapest University of Science and Technology. In 1949–1950, he was the head of the Department of the Coal Mining Research Laboratory, and then until his death, the managing design engineer of the Underground Railway Design Company, later of the Road and Railway Design Company (ÚVATERV). Between 1946 and 1952, he was a lecturer on geological mapping and technical geology at the Budapest University of Science and Technology. Several of his studies on mining geology and mining civil engineering were published in domestic and foreign journals. ; ; Significant inventions and innovations: ; the Káposztás drum sluice (1950), storage drive in quicksand with iron ribs (1951), storage drive in quicksand with a closed shield ; (1956). ; ; Main works: ; Mining geological conditions of the Királd area, 1927, ; Petrographische und geologische Beiträge zur Kenntniss des Erzvorkommens von Majdanpek in Serbien, 1934, ; Geological constructions and calculations (university notes), 1950, ; Geological mapping (university notes), 1950, ; Scientific principles and design specifications of soil consolidation by freezing, 1951, ; Ventilation of storage pits, 1956. ; ; &nbsp,