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Edmund Heusinger von Waldegg (12 May 1817 – 2 February 1886) was a German
mechanical engineer Mechanical may refer to: Machine * Machine (mechanical), a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement * Mechanical calculator, a device used to perform the basic operations of ...
and
railway engineer Railway engineering is a multi-faceted engineering discipline dealing with the design, construction and operation of all types of rail transport systems. It encompasses a wide range of engineering disciplines, including civil engineering, comput ...
. Edmund Heusinger was born in
Langenschwalbach Bad Schwalbach (called Langenschwalbach until 1927) is the district seat of Rheingau-Taunus-Kreis, in Hesse, Germany. Geography Geographic location Bad Schwalbach is a spa town some 20 km northwest of Wiesbaden. It lies at 289 to 465&nbs ...
(present day
Bad Schwalbach Bad Schwalbach (called Langenschwalbach until 1927) is the district seat of Rheingau-Taunus-Kreis, in Hesse, Germany. Geography Geographic location Bad Schwalbach is a spa town some 20 km northwest of Wiesbaden. It lies at 289 to 465&nbs ...
) in the state of
Hesse Hesse (, , ) or Hessia (, ; german: Hessen ), officially the State of Hessen (german: links=no, Land Hessen), is a States of Germany, state in Germany. Its capital city is Wiesbaden, and the largest urban area is Frankfurt. Two other major histor ...
in central
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
on 12 May 1817. In 1841 he became a master-workman with the
Taunus Railway The Taunus Railway (German: ''Taunus-Eisenbahn'') is a double-track electrified railway line, which connects Frankfurt and Wiesbaden, Germany. It is 41.2 km long and follows the course of the Main on its north side, running quite close to ...
(''Taunusbahn''). In 1854 he was awarded a contract to build the
Homburg Railway The Homburg Railway (german: Homburger Bahn ) is an 18 km line from Frankfurt am Main to Bad Homburg in the German state of Hesse. It was opened in 1860 as one of the first railway lines in Germany. It is now part of the Rhine-Main S-Bahn ...
. He invented ''inter alia'' a new type of
valve gear The valve gear of a steam engine is the mechanism that operates the inlet and exhaust valves to admit steam into the cylinder and allow exhaust steam to escape, respectively, at the correct points in the cycle. It can also serve as a reversing g ...
for
steam locomotives A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, oil or, rarely, wood) to heat water in the locomot ...
that was to become the most widely used valve gear in the world. Because the Belgian,
Egide Walschaerts Egide Walschaerts (21 January 1820 – 18 February 1901) was a Belgian mechanical engineer, best known as the inventor of the Walschaerts valve gear used in steam locomotives. He was born in Mechelen, Belgium. In 1838 he was recognised as an ...
, invented the same system independently, it is usually called the
Walschaerts valve gear The Walschaerts valve gear is a type of valve gear used to regulate the flow of steam to the pistons in steam locomotives, invented by Belgium, Belgian railway mechanical engineering, engineer Egide Walschaerts in 1844. The gear is sometimes name ...
outside the German-speaking world. Edmund Heusinger von Waldegg died on 2 February 1886 in
Hanover Hanover (; german: Hannover ; nds, Hannober) is the capital and largest city of the German state of Lower Saxony. Its 535,932 (2021) inhabitants make it the 13th-largest city in Germany as well as the fourth-largest city in Northern Germany ...
, in northern Germany.


Career

Edmund Heusinger von Waldegg, was a mechanical engineer who became famous as a result of his inventions. After studying at
University of Göttingen The University of Göttingen, officially the Georg August University of Göttingen, (german: Georg-August-Universität Göttingen, known informally as Georgia Augusta) is a public research university in the city of Göttingen, Germany. Founded ...
and
Leipzig University Leipzig University (german: Universität Leipzig), in Leipzig in Saxony, Germany, is one of the world's oldest universities and the second-oldest university (by consecutive years of existence) in Germany. The university was founded on 2 December ...
, he entered the smelting house of “Good Hope", under English management, in 1840, where the first
locomotive A locomotive or engine is a rail transport vehicle that provides the Power (physics), motive power for a train. If a locomotive is capable of carrying a payload, it is usually rather referred to as a multiple unit, Motor coach (rail), motor ...
in Germany was being built. After a short time, he became foreman of the workshop of the
Taunus Railway The Taunus Railway (German: ''Taunus-Eisenbahn'') is a double-track electrified railway line, which connects Frankfurt and Wiesbaden, Germany. It is 41.2 km long and follows the course of the Main on its north side, running quite close to ...
Company in Castel. In 1844 he became overseer in the shops in
Frankfurt am Main Frankfurt, officially Frankfurt am Main (; Hessian: , "Frank ford on the Main"), is the most populous city in the German state of Hesse. Its 791,000 inhabitants as of 2022 make it the fifth-most populous city in Germany. Located on its na ...
, and two years later, he was made superintendent of the General Shops in Castel. After acquiring, by diligent studies, the knowledge of a railway builder, he was given in 1854 the project of building the line between
Frankfurt am Main Frankfurt, officially Frankfurt am Main (; Hessian: , "Frank ford on the Main"), is the most populous city in the German state of Hesse. Its 791,000 inhabitants as of 2022 make it the fifth-most populous city in Germany. Located on its na ...
and
Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...
. In 1863, when he made the plans for the Deister and
South Harz Railway The South Harz Railway (german: Südharzstrecke or ''Südharzbahn'') is a railway line through the German states of Lower Saxony and Thuringia. It runs from Northeim to Nordhausen, via Herzberg am Harz, Bad Lauterberg-Barbis, Bad Sachsa, Walkenri ...
, which was constructed shortly thereafter, he moved to
Hanover Hanover (; german: Hannover ; nds, Hannober) is the capital and largest city of the German state of Lower Saxony. Its 535,932 (2021) inhabitants make it the 13th-largest city in Germany as well as the fourth-largest city in Northern Germany ...
, where he lived to the end of his strenuous but successful life. Edmund Heusinger Von Waldegg was the inventor of the reversing gear for locomotives which bears his name, the principle of which was used on all large engines throughout the world. He was also the inventor of the cylinder fly-press and of a writing machine for the blind. Among his many inventions in the line of railway technique he also developed the cast-iron plate wheel, perfected the coupling system and improved passenger coaches on through trains. Important also was his activity in the literary field. He was the author of several handbooks on railway technique, the publisher of the ''Calendar for Railway Engineers'', as well as a constant contributor to the ''Magazine for the Advancement of Technical Railway System''.


Life

Edmund was the second son of Pastor August Conrad Heusinger von Waldegg, born May 12, 1817 in
Langenschwalbach Bad Schwalbach (called Langenschwalbach until 1927) is the district seat of Rheingau-Taunus-Kreis, in Hesse, Germany. Geography Geographic location Bad Schwalbach is a spa town some 20 km northwest of Wiesbaden. It lies at 289 to 465&nbs ...
. Notwithstanding his distinguished career as a
mechanical engineer Mechanical may refer to: Machine * Machine (mechanical), a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement * Mechanical calculator, a device used to perform the basic operations of ...
his life was not without tragedy. He lost three wives while still young, and his fourth wife and five of his children died before him. He married (1) Amalia Emminghaus, 12 May 1846, who died on 9 February 1847; (2) Charlotte Thomae, 24 April 1848, who died on 17 July 1850; (3) Caroline Thomae, 2 October 1851, who died on 7 February 1859, and (4) Anna Quentin, 29 July 1863, who died 11 April 1880. Edmund was the father of nine children, but when he died on 2 February 1886, only two daughters, Charlotte Amalia (on 8 February 1847) and Ida (born 3 August 1856), and two sons, Gottlieb (23 May 1866) and Edmund Jr. (born 2 February 1868), survived him. The will to work, joy in work and creative power were the three motives in the life of Edmund Heusinger von Waldegg, and it is in this spirit that a monument was erected to his memory in Hanover, the dedication of which was held in that city on 22 September 1929, in the presence of a large gathering of friends and representatives of different organisations, as well as of his grandson, Pastor Wolfgang Heusinger von Waldegg, who accepted the monument in the name of the family and thanked all contributors for the honour shown to his grandfather. His portrait, is hanging in the
Deutsches Museum The Deutsches Museum (''German Museum'', officially (English: ''German Museum of Masterpieces of Science and Technology'')) in Munich, Germany, is the world's largest museum of science and technology, with about 28,000 exhibited objects from ...
in
Munich Munich ( ; german: München ; bar, Minga ) is the capital and most populous city of the States of Germany, German state of Bavaria. With a population of 1,558,395 inhabitants as of 31 July 2020, it is the List of cities in Germany by popu ...
and in the Technical Museum in
Vienna en, Viennese , iso_code = AT-9 , registration_plate = W , postal_code_type = Postal code , postal_code = , timezone = CET , utc_offset = +1 , timezone_DST ...
.


Sources

* * Edward W. Heusinger (1945). ''The Heusinger family in Texas.'' San Antonio, Texas : tandard Printing Company * Wolfgang Heusinger von Waldegg (1938). ''Kulturgeschtliche Bilder aus fuenf Jahrhunderten.'' {{DEFAULTSORT:Heusinger, Edmund 1817 births 1886 deaths People from Bad Schwalbach German railway pioneers German railway mechanical engineers Engineers from Hesse