Milligan secured a patent for a propeller, consisting of two vanes like those of a smoke jack placed beyond the rudder, and working with a universal joint. In 1825 Jacob Perkins, of Massachusetts ...

Thordon Bearings has delivered COMPAC water-lubricated propeller shaft and SXL rudder bearings to replace oil- and grease- lubricated bearings onboard McKeil Marine’s bulk carrier Northern ...