The smokestack for a oil, coal, or woodburning galley stove is called
a "Charlie Noble" once it protrudes above the deck or cabintop.

The name is said to commemorate a British merchant captain who was
obsessed with keeping the galley stack highly polished at all times.

On commercial tugs equipped with oil stoves, it was common practice to
periodically "shoot Charlie Noble".
A crewman would discharge a blank shotgun shell into the stove pipe to
jar loose any accumulated soot.

More obscure trivia; the "T" shaped cap often seen atop a Charlie
Noble is commonly referred to as a "Seattle cap."
Given our local climate, it's no wonder that such a term became
associated with a weather shield on a smokestack. :-)