Major types of positive-displacement pumps include: 1  Roots. 2  Lysholm twin-screw. 3  Sliding vane. 4  Scroll-type supercharger, also known as the G-Lader.
I believe that the first Reich refers to the establishment of the Holy Roman Empire in the 9th century was Charles the Great. The Second Reich was the unification of Germany under the Prussian Kaiser Wilhelm II in 1870. Of course, we all know what the Third Reich was. The First Reich was the Holy Roman Empire. There is little agreement as to when it was founded. Most German historians date the foundation from the coronation of Otto I in 962. That 'empire' had a continuous existence till 1806. The Second Reich was created by Bismarck in 1871 and lasted till 1918.
First Reich was the Holy Roman Empire from 800 to 1648 (formally ended in 1806). Second Reich was Hohenzollern Germany under Bismarck, from 1870 to the fall of Wilhelm II in 1919. So Nazi Germany was the third reich (regime) in Germany.eich can be translated as nation, realm or empire. For example, France is Frankreich or Realm of the Franks in German. In this usage, the first reich was the Holy Roman Empire, destroyed by Napoleon, and the second reich was Imperial Germany unitl the end of World War I.