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.
The term Third Reich as a term became popular in English literature to delineate between Nazi Germany and the Weimar Republic (1918-1933), which, although a republic, had maintained the title Deutsches Reich after the abdication of the emperor.hird Reich was the Nazi regime in Germany, 1933-1945. ORIGIN: German: 'Reich' meaning 'empire.' ANSWER The word Reich has two meaning. The first one is reign or Kin â¦ gdom.