BALL n.
or closed by the fall or rise of a ball floating in water at the end of a lever. -- Ball 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…
TRUNNION n.
A gudgeon on each side of an oscillating steam cylinder, to support it. It is usually tubular, to convey steam. Trunnion plate (Gun.), a plate in the carriage of a gun, mortar, or howitzer, which covers the upper part of the cheek, and forms a bearing under the trunnion. -- Trunnion ring (Gun.), a ring on a cannon nex…
WING n.
of the small feathers covering the bases of the wing quills. See Covert, n., 2. -- Wing gudgeon (Mach.), an iron gudgeon for the end of a wooden axle, having thin, broad projections to prevent it from turning in the wood. See Illust. of Gudgeon. -- Wing shell (Zoöl.), wing case of an insect. -- Wing stroke, the str…