烟囱支索

Funnel \Fun"nel\, n. [OE. funel, fonel, prob. through OF. fr, L.
fundibulum, infundibulum, funnel, fr. infundere to pour in;
in in + fundere to pour; cf. Armor. founil funnel, W. ffynel
air hole, chimney. See {Fuse}, v. t.]
1. A vessel of the shape of an inverted hollow cone,
terminating below in a pipe, and used for conveying
liquids or pourable solids into a vessel with a narrow
opening; a tunnel.

2. A passage or avenue for a fluid or flowing substance;
specifically, a smoke flue or pipe; the iron chimney of a
steamship or the like.

{Funnel box} (Mining), an apparatus for collecting finely
crushed ore from water. --Knight.

{Funnel stay} (Naut.), one of the ropes or rods steadying a
steamer's funnel.