Capuchon (chimney)

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A capuchon is a raised lip at the front of a ships funnel or railway locomotive chimney. It is intended to prevent down draughts when in motion and encourage smoke to rise. When fitted to ships' funnels the intention is to keep the after decks clear of exhaust smuts. On railway locomotives it is to keep smoke clear of the line of sight of the locomotive crew.

Sometimes capuchons were made of plate steel bolted or welded in place, others were an integral part of the chimney casting.

Many Belgian locomotives that were built in the late 19th or early 20th centuries were fitted with distinctive high capuchons, for example the Type 8 4-6-0 compounds.