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1 Albert, Wilhelm August Julius
SUBJECT AREA: Mining and extraction technology[br]b. 24 January 1787 Hannover, Germanyd. 4 July 1846 Clausthal, Harz, Germany[br]German mining official, successful applier of wire cable.[br]After studying law at the University of Göttingen, Albert turned to the mining industry and in 1806 started his career in mining administration in the Harz district, where he became Chief Inspector of mines thirty years later. His influence on the organization of the mining industry was considerable and he contributed valuable ideas for the development of mining technology. For example, he initiated experiments with Reichenbach's water-column pump in Harz when it had been working successfully in the transportation of brine in Bavaria, and he encouraged Dörell to work on his miner's elevator.The increasing depths of shafts in the Harz district brought problems with hoisting as the ropes became too heavy and tended to break. At the beginning of the nineteenth century, iron link chains replaced the hempen ropes which were expensive and wore out too quickly, especially in the wet conditions in the shafts. After he had experimented for six years using counterbalancing iron link chains, which broke too easily, in 1834 he conceived the idea of producing stranded cables from iron wires. Their breaking strength and flexibility depended greatly on the softness of the iron and the way of laying the strands. Albert produced the cable by attaching the wires to strings which he turned evenly; this method became known as "Albert lay". He was not the first to conceive the idea of metal cables: there exists evidence for such cables as far back as Pompeii; Leonardo da Vinci made sketches of cables made from brass wires; and in 1780 the French engineer Reignier applied iron cables for lightning conductors. The idea also developed in various other mining areas, but Albert cables were the first to gain rapidly direct common usage worldwide.[br]Bibliography1835, "Die Anfertigung von Treibseilen aus geflochtenem Eisendraht", Karstens Archiv 8: 418–28.Further ReadingK.Karmarsch, "W.A.J.Albert", Allgemeine deutsche Biographie 1:212–3.W.Bornhardt, 1934, W.A.J.Albert und die Erfindung der Eisendrahtseile, Berlin (a detailed description of his inventions, based on source material).C.Bartels, 1992, Vom frühneuzeitlichen Montangewerbe zur Bergbauindustrie, Bochum: Deut sches Bergbau-Museum (evaluates his achievements within the framework of technological development in the Harz mining industry).WKBiographical history of technology > Albert, Wilhelm August Julius
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2 Oeynhausen, Karl von
SUBJECT AREA: Mining and extraction technology[br]b. 4 February 1795 Grevenburg, near Höxter, Germanyd. 1 February 1865 Grevenburg, near Höxter, Germany[br]German mining officer who introduced fish joints to deep-drilling.[br]The son of a mining officer, Oeynhausen started his career in the Prussian administration of the mining industry in 1816, immediately after he had finished his studies in natural sciences and mathematics at the University of Göttingen. From 1847 until his retirement he was a most effective head of state mines inspectorates, first in Silesia (Breslau; now Wroclaw, Poland), later in Westphalia (Dortmund). During his working life he served in all the important mining districts of Prussia, and travelled to mining areas in other parts of Germany, Belgium, France and Britain. In the 1820s, after visiting Glenck's well-known saltworks near Wimpfen, he was commissioned to search for salt deposits in Prussian territory, where he discovered the thermal springs south of Minden which later became the renowned spa carrying his name.With deeper drills, the increased weight of the rods made it difficult to disengage the drill on each stroke and made the apparatus self-destructive on impact of the drill. Oeynhausen, from 1834, used fish joints, flexible connections between the drill and the rods. Not only did they prevent destructive impact, but they also gave a jerk on the return stroke that facilitated disengagements. He never claimed to have invented the fish joints: in fact, they appeared almost simultaneously in Europe and in America at that time, and had been used since at least the seventeenth century in China, although they were unknown in the Western hemisphere.Using fish joints meant the start of a new era in deep-drilling, allowing much deeper wells to be sunk than before. Five weeks after Oeynhausen, K.G. Kind operated with a different kind of fish joint, and in 1845 another Prussian mining officer, Karl Leopold Fabian (1782–1855), Director of the salt inspectorate at Schönebeck, Elbe, improved the fish joints by developing a special device between the rod and the drill to enable the chisel, strengthened by a sinker bar, to fall onto the bottom of the hole without hindrance with a higher effect. The free-fall system became another factor in the outstanding results of deep-drilling in Prussia in the nineteenth century.[br]Principal Honours and DistinctionsHonorary PhD, University of Berlin 1860.Bibliography1824, "Über die geologische Ähnlichkeit des steinsalzführenden Gebirges in Lothringen und im südlichen Deutschland mit einigen Gegenden auf beiden Ufern der Weser", Karstens Archiv für Bergbau und Hüttenwesen 8: 52–84.1847, "Bemerkungen über die Anfertigung und den Effekt der aus Hohleisen zusammengesetzten Bohrgestänge", Archiv fur Mineralogie, Geognosie, Bergbau und Hüttenkunde 21:135–60.1832–3, with H.von Dechen, Über den Steinkohlenbergbau in England, 2 parts, Berlin.Further Readingvon Gümbel, "K.v.Oeynhausen", Allgemeine deutsche Biographie 25:31–3.W.Serlo, 1927, "Bergmannsfamilien. Die Familien Fabian und Erdmann", Glückauf.492–3.D.Hoffmann, 1959, 150 Jahre Tiefbohrungen in Deutschland, Vienna and Hamburg (a careful elaboration of the single steps and their context with relation to the development of deep-drilling).WK -
3 Reichenbach, Georg Friedrich von
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering, Photography, film and optics, Public utilities[br]b. 24 August 1772 Durlach, Baden, Germanyd. 21 May 1826 Munich, Germany[br]German engineer.[br]While he was attending the Military School at Mannheim, Reichenbach drew attention to himself due to the mathematical instruments that he had designed. On the recommendation of Count Rumford in Munich, the Bavarian government financed a two-year stay in Britain so that Reichenbach could become acquainted with modern mechanical engineering. He returned to Mannheim in 1793, and during the Napoleonic Wars he was involved in the manufacture of arms. In Munich, where he was in the service of the Bavarian state from 1796, he started producing precision instruments in his own time. His basic invention was the design of a dividing machine for circles, produced at the end of the eighteenth century. The astronomic and geodetic instruments he produced excelled all the others for their precision. His telescopes in particular, being perfect in use and of solid construction, soon brought him an international reputation. They were manufactured at the MathematicMechanical Institute, which he had jointly founded with Joseph Utzschneider and Joseph Liebherr in 1804 and which became a renowned training establishment. The glasses and lenses were produced by Joseph Fraunhofer who joined the company in 1807.In the same year he was put in charge of the technical reorganization of the salt-works at Reichenhall. After he had finished the brine-transport line from Reichenhall to Traunstein in 1810, he started on the one from Berchtesgaden to Reichenhall which was an extremely difficult task because of the mountainous area that had to be crossed. As water was the only source of energy available he decided to use water-column engines for pumping the brine in the pipes of both lines. Such devices had been in use for pumping purposes in different mining areas since the middle of the eighteenth century. Reichenbach knew about the one constructed by Joseph Karl Hell in Slovakia, which in principle had just been a simple piston-pump driven by water which did not work satisfactorily. Instead he constructed a really effective double-action water-column engine; this was a short time after Richard Trevithick had constructed a similar machine in England. For the second line he improved the system and built a single-action pump. All the parts of it were made of metal, which made them easy to produce, and the pumps proved to be extremely reliable, working for over 100 years.At the official opening of the line in 1817 the Bavarian king rewarded him generously. He remained in the state's service, becoming head of the department for roads and waterways in 1820, and he contributed to the development of Bavarian industry as well as the public infrastructure in many ways as a result of his mechanical skill and his innovative engineering mind.[br]Further ReadingBauernfeind, "Georg von Reichenbach" Allgemeine deutsche Biographie 27:656–67 (a reliable nineteenth-century account).W.Dyck, 1912, Georg v. Reichenbach, Munich.K.Matschoss, 1941, Grosse Ingenieure, Munich and Berlin, 3rd edn. 121–32 (a concise description of his achievements in the development of optical instruments and engineering).WKBiographical history of technology > Reichenbach, Georg Friedrich von
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