Patten (shoe) the nineteenth or even early 20th century. In appearance, they may resemble contemporary clogs or sandals, but though historical usage was apparently not always consistent, the term now is used only to describe protective overshoes worn over another pair of shoes. Pattens were worn during the Middle Ages outdoors and in public places over (outside) the thin soled shoes of that era. Pattens were worn by both men and women during the Middle Ages, and are especially seen in art from the 15th century: a time when poulaines, shoes with very long pointed toes, were particularly in fashion. Medieval pattens
Mud Gas Separator a float-type mud gas separator by a float/valve configuration. The float opens and closes a valve on the mud return line to maintain the mud-leg level. According to pedestal or base type there are: Poor boy degassers are usually named according to the vessel diameter. Types include: The degasser type or configuration is typically customisable. The principle behind the mud gas separator is relatively simple. On the figure, the mud and gas mixture is fed at the inlet allowing it to impinge on a series of baffles designed to separate gas and mud. The free gas then is moved into