Patten (shoe) shoes of Japan and other Asian countries. What are in effect snowshoes for mud, as used by wildfowlers, boatmen, and Coast Guards may also be called pattens, or "mud-pattens". These are shaped boards attached to the sole of a shoe, which extend sideways well beyond the shape of the foot, and therefore are a different sort of footwear from the patten discussed here. "Horse-pattens" were used on horses, especially for ploughing muddy fields. The word was also used for ice-skates, as it is in French ("patiner", to skate). In London, the Worshipful Company of Pattenmakers remains the Livery Company, formerly
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