Search the Dictionary

ad, due to lead poisoning. (b) (Naut.) A sounding line. -- Lead mill, a leaden polishing wheel, used by lapidaries. -- Lead ocher (Min.), a massive sulphur-yellow oxide of lead. Same as Massicot. -- Lead pencil, a pencil of which the marking material is graphite (black lead). -- Lead plant (Bot.), a low leguminous…

, to be in a state of infancy or dependence, or under the guidance of others. -- Leading wheel, a wheel situated before the driving wheels of a locomotive engine.

5. -- Lever watch, a watch having a vibrating lever to connect the action of the escape wheel with that of the balance. Universal lever, a machine formed by a combination of a lever with the wheel and axle, in such a manner as to convert the reciprocating motion of the lever into a continued rectilinear motion of som…

Its wood is very hard and heavy, and is used for various mechanical purposes, as for the wheels of ships' blocks, cogs, bearings, and the like. See Guaiacum.

lively song or dance; a cheerful tune. The housewife went about her work, or spun at her wheel, with a lilt upon her lips. J. C. Shairp.

The detachable fore part of a gun carriage, consisting of two wheels, an axle, and a shaft to which the horses are attached. On top is an ammunition box upon which the cannoneers sit.

A pin used to prevent the wheel of a vehicle from sliding off the axletree.

y Hogarth). -- Line of centers. (Mach.) (a) A line joining two centers, or fulcra, as of wheels or levers. (b) A line which determines a dead center. See Dead center, under Dead. -- Line of dip (Geol.), a line in the plane of a stratum, or part of a stratum, perpendicular to its intersection with a horizontal plane;…

Any one of the several elementary pieces of a mechanism, as the fixed frame, or a rod, wheel, mass of confined liquid, etc., by which relative motion of other parts is produced and constrained.

A device for keeping a wheel from turning.

A locomotive engine; a self-propelling wheel carriage, especially one which bears a steam boiler and one or more steam engines which communicate motion to the wheels and thus propel the carriage, -- used to convey goods or passengers, or to draw wagons, railroad cars, etc. See Illustration in Appendix. Consolidation lo…

e of chance, played with cards, on which are inscribed numbers, and any contrivance (as a wheel containing numbered balls) for determining a set of numbers by chance. The player holding a card having on it the set of numbers drawn from the wheel takes the stakes after a certain percentage of them has been deducted for…

all high-pressure cylinder with a piston acting on the beam between the center and the flywheel end, using high-pressure steam and working as a compound engine, -- a plan introduced by M'Naught, a Scottish engineer, in 1845.

s complex, consisting of a combination of moving parts, or simple mechanical elements, as wheels, levers, cams, etc., with their supports and connecting framework, calculated to constitute a prime mover, or to receive force and motion from a prime mover or from another machine, and transmit, modify, and apply them to t…

ad"ding*ly, adv. [Archaic] Far from the madding crowd's ignoble strife. Gray. The madding wheels Of brazen chariots raged. Milton.

device for saving power in stopping and starting a railroad car, by means of a heavy fly wheel.

apotaceous tree (Bassia latifolia, and also B. butyracea), whose timber is used for wagon wheels, and the flowers for food and in preparing an intoxicating drink. It is one of the butter trees. The oil, known as mahwa and yallah, is obtained from the kernels of the fruit.

in opposite directions, according to the side in which its teeth are engaged. -- Mangle wheel, a wheel in which the teeth, or pins, on its face, are interrupted on one side, and the pinion, working in them, passes from inside to outside of the teeth alternately, thus converting the continuous circular motion of the p…

A penstock for a water wheel.

A small wheel carriage, so constructed that a person sitting in it may move it.