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ll gudgeon, a pivot of a spherical form, which permits lateral deflection of the arbor or shaft, while retaining the pivot in its socket. Knight. -- Ball lever, the lever used in a ball cock. -- Ball of the eye, the eye itself, as distinguished from its lids and socket; -- formerly, the pupil of the eye. -- Ball val…

ic architecture, the molding, or suite of moldings, which encircles the pillars and small shafts.

The ground at the top of a shaft; as, ores are brought to bank. Bank beaver (Zoöl.), the otter. [Local, U.S.] -- Bank swallow, a small American and European swallow (Clivicola riparia) that nests in a hole which it excavates in a bank.

A broad shaft, or band, or stripe; as, a bar of light; a bar of color.

h the piston rod from which it receives motion, and the other with the crank of the wheel shaft; -- called also working beam or walking beam.

The part of an axle or shaft in contact with its support, collar, or boxing; the journal.

A flatulent disease of sheep. Blast furnace, a furnace, usually a shaft furnace for smelting ores, into which air is forced by pressure. -- Blast hole, a hole in the bottom of a pump stock through which water enters. -- Blast nozzle, a fixed or variable orifice in the delivery end of a blast pipe; -- called also blas…

nder Blank, a. -- Blind level (Mining), a level or drainage gallery which has a vertical shaft at each end, and acts as an inverted siphon. Knight. -- Blind nettle (Bot.), dead nettle. See Dead nettle, under Dead. -- Blind shell (Gunnery), a shell containing no charge, or one that does not explode. -- Blind side, t…

t of air by pressure, as for increasing the draft of a furnace, ventilating a building or shaft, cleansing gram, etc.

A shaft or missile intended to be shot from a crossbow or catapult, esp. a short, stout, blunt-headed arrow; a quarrel; an arrow, or that which resembles an arrow; a dart. Look that the crossbowmen lack not bolts. Sir W. Scott. A fool's bolt is soon shot. Shak.

A roofing over the cage of a mine, to protect its occupants from objects falling down the shaft.

The enlarged part of a shaft, on which a wheel is keyed, or at the end, where it is coupled to another.

One of the shafts of a clustered column. [Written also bowtel, boltel, boultell, etc.]

The mouth of a shaft. [Cornwall] Angle brace. See under Angle.

A wall of separation in a shaft or gallery used for ventilation.

A molding, shaft of a column, or any other member of convex, rounded section, made to resemble the spiral twist of a rope; -- called also cable molding. Bower cable, the cable belonging to the bower anchor. -- Cable road, a railway on which the cars are moved by a continuously running endless rope operated by a statio…

The decoration of a fluted shaft of a column or of a pilaster with reeds, or rounded moldings, which seem to be laid in the hollows of the fluting. These are limited in length to about one third of the height of the shaft.

box, bucket, or inclosed platform of a lift or elevator; a cagelike structure moving in a shaft.

A hollow cylindrical piece carried by a revolving shaft, on which it may, however, revolve independently.

A conical recess, or indentation, in the end of a shaft or other work, to receive the point of a center, on which the work can turn, as in a lathe.