JET n.
The sprue of a type, which is broken from it when the type is cold. Knight. Jet propeller (Naut.), a device for propelling vessels by means of a forcible jet of water ejected from the vessel, as by a centrifugal pump. -- Jet pump, a device in which a small jet of steam, air, water, or other fluid, in rapid motion, lif…
KNOWLEDGE n.
equent use by Bacon, and, though now obsolete, should be revived, as without it we are compelled to borrow "cognitions" to express its import. Sir W. Hamilton. To use a word of Bacon's, now unfortunately obsolete, we must determine the relative value of knowledges. H. Spencer.
LEAD n.
The action of a tooth, as a tooth of a wheel, in impelling another tooth or a pallet. Saunier. Lead angle (Steam Engine), the angle which the crank maker with the line of centers, in approaching it, at the instant when the valve opens to admit steam. -- Lead screw (Mach.), the main longitudinal screw of a lathe, which…