6. A long passage for the admission or outlet of air; an air shaft.
7. The chamber of a blast furnace. Line shaft (Mach.), a main shaft of considerable length, in a shop or factory, usually bearing a number of pulleys by which machines are driven, commonly by means of countershafts; — called also line, or main line. — Shaft alley (Naut.), a passage extending from the engine room to the stern, and containing the propeller shaft. — Shaft furnace (Metal.), a furnace, in the form of a chimney, which is charged at the top and tapped at the bottom.
SHAFTED
Shaft"ed, a.
1. Furnished with a shaft, or with shafts; as, a shafted arch.
2. (Her.)
Defn: Having a shaft; — applied to a spear when the head and the shaft are of different tinctures.
SHAFTING
Shaft"ing, n. (Mach.)
Defn: Shafts, collectivelly; a system of connected shafts for communicating motion.
SHAFTMAN; SHAFTMENT
Shaft"man, Shaft"ment, n. Etym: [AS. sceaftmund.]
Defn: A measure of about six inches. [Obs.]