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all frame, supported at the top by stays or guys, with suitable tackle for hoisting heavy weights, as stones in building. Derrick crane, a combination of the derrick and the crane, having facility for hoisting and also for swinging the load horizontally.

The act, process, or result of any accurate measurement, as of length, volume, weight, intensify, etc.; as, the determination of the ohm or of the wave length of light; the determination of the salt in sea water, or the oxygen in the air.

isting rope winds upon one part as it unwinds from the other, and a pulley sustaining the weight to be lifted hangs in the bight of the rope. It is an ancient example of a differential motion.

Lintel. -- Discharging piece, Discharging strut (Arch.), a piece set to carry thrust or weight to a solid point of support. -- Discharging rod (Elec.), a bent wire, with knobs at both ends, and insulated by a glass handle. It is employed for discharging a Leyden jar or an electrical battery. See Discharger.…

The quantity of anything, as water, displaced by a floating body, as by a ship, the weight of the displaced liquid being equal to that of the displacing body.

tes containing 371.25 grains of silver and 41.25 grains of alloy, that is, having a total weight of 412.5 grains.

ary engine not used for propelling, but for pumping water into the boilers, raising heavy weights, and like purposes. -- Donkey pump, a steam pump for feeding boilers, extinguishing fire, etc.; -- usually an auxiliary. -- Donkey's eye (Bot.), the large round seed of the Mucuna pruriens, a tropical leguminous plant.…

Having both sashes hung with weights and cords; -- said of a window.

Among the ancient Greeks, a weight of about 66.5 grains; among the modern Greeks, a weight equal to a gram.

e cords which through his feet were thrust. Denham. The grossness of his nature will have weight to drag thee down. Tennyson. A needless Alexandrine ends the song That, like a wounded snake, drags its slow length along. Pope.

A weight; in Apothecaries' weight, one eighth part of an ounce, or sixty grains; in Avoirdupois weight, one sixteenth part of an ounce, or 27.34375 grains.

n the latter has the direction best adapted to overcome the obstacles of friction and the weight of the body. -- Black draught. See under Black, a. -- Blast draught, or Forced draught, the draught produced by a blower, as by blowing in air beneath a fire or drawing out the gases from above it. -- Natural draught, th…

ng, a spring fixed upon the box of the driving axle of a locomotive engine to support the weight and deaden shocks. [Eng.] Weale. -- Driving wheel (Mach.), a wheel that communicates motion; one of the large wheels of a locomotive to which the connecting rods of the engine are attached; -- called also, simply, driver.…

A machine for lowering heavy weights, as packages, coal wagons, etc., to a ship's deck.

t consists of a balance, having a plate at one end to receive the dew, and at the other a weight protected from the deposit of dew.

A weight, consisting of two spheres or spheroids, connected by a short bar for a handle; used (often in pairs) for gymnastic exercise.

gold, such as are obtained in placer mining; -- often used as money, being transferred by weight. -- In dust and ashes. See under Ashes. -- To bite the dust. See under Bite, v. t. -- To raise, or kick up, dust, to make a commotion. [Colloq.] -- To throw dust in one's eyes, to mislead; to deceive. [Colloq.]…

symptoms are loss of appetite, nausea, heartburn, acrid or fetid eructations, a sense of weight or fullness in the stomach, etc. Dunglison.

To bring from a lower place to a higher; to lift up; to raise; as, to elevate a weight, a flagstaff, etc.

A peculiar impressiveness of expression or weight of thought; vivid representation, enforcing assent; as, to dwell on a subject with great emphasis. External objects stand before us . . . in all the life and emphasis of extension, figure, and color. Sir W. Hamilton.