fbpx
Wikipedia

Heinrich Ehrhardt

Heinrich Ehrhardt (17 November 1840 in Zella St. Blasius – 20 November 1928 in Zella-Mehlis) was a German inventor, industrialist and entrepreneur.

Heinrich Ehrhardt

Family edit

Ehrhardt's uncle was the successful locomotive manufacturer and inventor Johann Heinrich Ehrhardt.[citation needed]

Career edit

Around 1864, he studied and worked at the company Richard Hartmann in Chemnitz, which was the largest Saxon company.[citation needed]

Patents and start-ups edit

He registered 128 patents in the German Empire. In 1891 he patented[1] the process that became known as the "Ehrhardt's pressing and drawing method" for the manufacture of seamless tubes and used the process to manufacture shrapnel and shell casings from steel instead of cast iron, an innovative at the time.

He founded in 1878, among other things, a metal and arms factory in Zella St. Blasius, in 1889, the Rheinische Metallwaren- und Maschinenfabrik AG in Düsseldorf, in 1896, the Automobilwerk Eisenach and the Blasius 1903 Ehrhardt Automobil AG. He tended to conduct R&D at a small factory in Zella fully controlled by him, personally own the patents and license them to public companies he managed/co-owned, and the firms he was affiliated with made a very loose conglomerate; this fact negated the consequences of a hostile takeover of Rheinmetall by Krupp in 1913.[2]

In 1895, he was contacted former Krupp engineer Konrad Haussner, who patented the idea of an innovative quick-firing gun and wanted to continue designing a real one. Ehrhardt recognized the prospectives of the design, and Haussner's far-reaching hiring in 1896 turned Rheinmetall from an unexceptional ammunition manufacturer (which did not even make the fuses for shell) to a leading European arms manufacturer in a decade.

Despite the fact that the 1896 prototype was turned down by the German Artillery Testing Commission as not yet usable in the war (a simpler 7.7 cm FK 96 was adopted instead),[3] in 1900 Great Britain adopted Haussner's design as the QF 15-pounder gun (even though just as a stopgap measure), to be followed by Norway a year later with a gun which will participate in WWII. Later the United States Army Ordnance Department decided to buy the rights from Ehrhardt in order to combine them with an existing design by Captain Charles B. Wheeler in the 3-inch M1902 field gun, and the Austro-Hungarian Army followed suit with their 8 cm FK M. 5. The Artillery Construction Bureau of the Imperial German Army in Spandau did the same to develop the 7.7 cm FK 96 n.A. in 1904[4] with the only difference that Ehrhardt gave the patents for free in return for "favorable consideration when placing orders" for manufacturing the guns.[5]

In 1920, at the age of about 80, Ehrhardt resigned from the leadership of Rheinmetall.

Commercial vehicle edit

Heinrich Ehrhardt taught in 1903 in his hometown of Zella St. Blasius. He created the Gustav Ehrhardt Automobile AG for passenger utility vehicles. This automobile factory, which was housed in the Maschinenfabrik has existed since 1878. Since 1903 trucks were built for the imperial army administration. From 1906, subsidized by the German Reich, only trucks were built. Purchasers had to establish that the army would have access to them in case of war. The Ehrhardt truck years had eleven types. Its gross vehicle weight ranged from 2.5 to 6 tons. A balloon defense special vehicle was built with eight tons dead weight at the start of the war. In 1924 two types of trucks were built with 35 hp and 80 hp. In 1925 the commercial vehicle industry was shut down.

Passenger cars edit

Ehrhardt initially had 31.2 percent ownership in the joint-stock company vehicle factory Eisenach (FFE). This was the vehicle factory that became Germany's third auto maker. Guns and bicycles were manufactured under the "Wartburg" brand, and by the end of 1898 car production had begun under the same name. The Wartburg motor car was modeled after the French two-cylinder engine "Decauville". Ehrhardt's son Gustav led the plant in Eisenach. Its 1,300 workers made the firm one of Thuringia's largest.

In order to convince the public and shareholders of the quality of the "Wartburg"-Motorwagens, Heinrich Ehrhardt and a companion drove up a steep road to show that the car could handle the climb.

In 1903, Ehrhardt withdrew after losses and disagreements other shareholders. The Decauville license was taken away. He founded Ehrhardt Automobil AG, making luxury cars, such as the "Emperor class" limousine. A brochure from 1911 shows an output of 50 hp from 8 liters capacity. The price was 26,000 marks.

Writings edit

  • Ehrhardt, Heinrich (1923). Hammerschläge: 70 Jahre dt. Arbeiter u. Erfinder. Koehler.

References edit

  1. ^ DE 67921C 
  2. ^ "Der Artilleriesektor im Deutschen Kaiserreich vor 1914 | Technikgeschichte | Christian Brandau".
  3. ^ David Stevenson. "The field artillery revolution and the European military balance, 1890-1914" (PDF). Eprints.lse.ac.uk. Retrieved 22 July 2022.
  4. ^ "7,7-cm-Feldkanone 96 n. A. | Technikgeschichte | Christian Brandau". Homepage.ruhr-uni-bochum.de. Retrieved 22 July 2022.
  5. ^ Kaiser, Gerd. "Die Rüstung ernährt ihren Mann (nd-aktuell.de)". Nd-aktuell.de. Retrieved 22 July 2022.

Sources edit

  • George W. Oesterdiekhoff; Hermann Strasser : heads of the Ruhr. 200 years of industrial history and structural change in the light of biographies . Plaintext Verlag, Essen 2009, ISBN 978-3-8375-0036-3, pages 91-98.
  • Hugo Racine: Ehrhardt, Henry. In: New German Biography (NDB). Volume 4, Duncker & Humblot, Berlin 1959. ISBN 3-428-00185-0, page 579 f.
  • Joseph Wilder: Heinrich Ehrhardt (1840-1928). In: RWTH Economics Biographies, Volume IV Aschendorff, Münster 1941, pages 172–186..
  • "Chronicle of the city Zella-Mehlis - Volume 2", Heinrich Jung-Verlag
  • "History of the German truck construction", Volume 1 Pages 68 + 2a. S. 126. worldview Verlag 1994 ISBN 3-89350-811-2

heinrich, ehrhardt, november, 1840, zella, blasius, november, 1928, zella, mehlis, german, inventor, industrialist, entrepreneur, this, article, includes, list, general, references, lacks, sufficient, corresponding, inline, citations, please, help, improve, th. Heinrich Ehrhardt 17 November 1840 in Zella St Blasius 20 November 1928 in Zella Mehlis was a German inventor industrialist and entrepreneur Heinrich EhrhardtThis article includes a list of general references but it lacks sufficient corresponding inline citations Please help to improve this article by introducing more precise citations April 2015 Learn how and when to remove this template message Contents 1 Family 2 Career 3 Patents and start ups 4 Commercial vehicle 5 Passenger cars 6 Writings 7 References 8 SourcesFamily editEhrhardt s uncle was the successful locomotive manufacturer and inventor Johann Heinrich Ehrhardt citation needed Career editAround 1864 he studied and worked at the company Richard Hartmann in Chemnitz which was the largest Saxon company citation needed Patents and start ups editHe registered 128 patents in the German Empire In 1891 he patented 1 the process that became known as the Ehrhardt s pressing and drawing method for the manufacture of seamless tubes and used the process to manufacture shrapnel and shell casings from steel instead of cast iron an innovative at the time He founded in 1878 among other things a metal and arms factory in Zella St Blasius in 1889 the Rheinische Metallwaren und Maschinenfabrik AG in Dusseldorf in 1896 the Automobilwerk Eisenach and the Blasius 1903 Ehrhardt Automobil AG He tended to conduct R amp D at a small factory in Zella fully controlled by him personally own the patents and license them to public companies he managed co owned and the firms he was affiliated with made a very loose conglomerate this fact negated the consequences of a hostile takeover of Rheinmetall by Krupp in 1913 2 In 1895 he was contacted former Krupp engineer Konrad Haussner who patented the idea of an innovative quick firing gun and wanted to continue designing a real one Ehrhardt recognized the prospectives of the design and Haussner s far reaching hiring in 1896 turned Rheinmetall from an unexceptional ammunition manufacturer which did not even make the fuses for shell to a leading European arms manufacturer in a decade Despite the fact that the 1896 prototype was turned down by the German Artillery Testing Commission as not yet usable in the war a simpler 7 7 cm FK 96 was adopted instead 3 in 1900 Great Britain adopted Haussner s design as the QF 15 pounder gun even though just as a stopgap measure to be followed by Norway a year later with a gun which will participate in WWII Later the United States Army Ordnance Department decided to buy the rights from Ehrhardt in order to combine them with an existing design by Captain Charles B Wheeler in the 3 inch M1902 field gun and the Austro Hungarian Army followed suit with their 8 cm FK M 5 The Artillery Construction Bureau of the Imperial German Army in Spandau did the same to develop the 7 7 cm FK 96 n A in 1904 4 with the only difference that Ehrhardt gave the patents for free in return for favorable consideration when placing orders for manufacturing the guns 5 In 1920 at the age of about 80 Ehrhardt resigned from the leadership of Rheinmetall Commercial vehicle editHeinrich Ehrhardt taught in 1903 in his hometown of Zella St Blasius He created the Gustav Ehrhardt Automobile AG for passenger utility vehicles This automobile factory which was housed in the Maschinenfabrik has existed since 1878 Since 1903 trucks were built for the imperial army administration From 1906 subsidized by the German Reich only trucks were built Purchasers had to establish that the army would have access to them in case of war The Ehrhardt truck years had eleven types Its gross vehicle weight ranged from 2 5 to 6 tons A balloon defense special vehicle was built with eight tons dead weight at the start of the war In 1924 two types of trucks were built with 35 hp and 80 hp In 1925 the commercial vehicle industry was shut down Passenger cars editEhrhardt initially had 31 2 percent ownership in the joint stock company vehicle factory Eisenach FFE This was the vehicle factory that became Germany s third auto maker Guns and bicycles were manufactured under the Wartburg brand and by the end of 1898 car production had begun under the same name The Wartburg motor car was modeled after the French two cylinder engine Decauville Ehrhardt s son Gustav led the plant in Eisenach Its 1 300 workers made the firm one of Thuringia s largest In order to convince the public and shareholders of the quality of the Wartburg Motorwagens Heinrich Ehrhardt and a companion drove up a steep road to show that the car could handle the climb In 1903 Ehrhardt withdrew after losses and disagreements other shareholders The Decauville license was taken away He founded Ehrhardt Automobil AG making luxury cars such as the Emperor class limousine A brochure from 1911 shows an output of 50 hp from 8 liters capacity The price was 26 000 marks Writings editEhrhardt Heinrich 1923 Hammerschlage 70 Jahre dt Arbeiter u Erfinder Koehler References edit DE 67921C Der Artilleriesektor im Deutschen Kaiserreich vor 1914 Technikgeschichte Christian Brandau David Stevenson The field artillery revolution and the European military balance 1890 1914 PDF Eprints lse ac uk Retrieved 22 July 2022 7 7 cm Feldkanone 96 n A Technikgeschichte Christian Brandau Homepage ruhr uni bochum de Retrieved 22 July 2022 Kaiser Gerd Die Rustung ernahrt ihren Mann nd aktuell de Nd aktuell de Retrieved 22 July 2022 Sources editGeorge W Oesterdiekhoff Hermann Strasser heads of the Ruhr 200 years of industrial history and structural change in the light of biographies Plaintext Verlag Essen 2009 ISBN 978 3 8375 0036 3 pages 91 98 Hugo Racine Ehrhardt Henry In New German Biography NDB Volume 4 Duncker amp Humblot Berlin 1959 ISBN 3 428 00185 0 page 579 f Joseph Wilder Heinrich Ehrhardt 1840 1928 In RWTH Economics Biographies Volume IV Aschendorff Munster 1941 pages 172 186 Chronicle of the city Zella Mehlis Volume 2 Heinrich Jung Verlag History of the German truck construction Volume 1 Pages 68 2a S 126 worldview Verlag 1994 ISBN 3 89350 811 2 Retrieved from https en wikipedia org w index php title Heinrich Ehrhardt amp oldid 1172718884, wikipedia, wiki, book, books, library,

article

, read, download, free, free download, mp3, video, mp4, 3gp, jpg, jpeg, gif, png, picture, music, song, movie, book, game, games.