Mantelet, n. [F., dim. of manteau, OF. mantel. See Mantle.].
A short cloak formerly worn by knights. [1913 Webster]
"A mantelet upon his shoulders hanging."
[1913 Webster]
A musket-proof shield of rope, wood, or metal, which is sometimes used for the protection of sappers or riflemen while attacking a fortress, or of gunners at embrasures; -- now commonly written mantlet. [1913 Webster]