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A bridge of which either the whole or a part is made to be raised up, let down, or drawn or turned aside, to admit or hinder communication at pleasure, as before the gate of a town or castle, or over a navigable river or canal.

aw, in which one end rises as the other falls. Bascule bridge, a counterpoise or balanced drawbridge, which is opened by sinking the counterpoise and thus lifting the footway into the air.

bony part of the nose. -- Cantalever bridge. See under Cantalever. -- Draw bridge. See Drawbridge. -- Flying bridge, a temporary bridge suspended or floating, as for the passage of armies; also, a floating structure connected by a cable with an anchor or pier up stream, and made to pass from bank to bank by the act…

A counterpoise to balance the weight of anything, as of a drawbridge or a scale beam. Money is the counterbalance to all other things purchasable by it. Locke.

part of a bridge which may be raised, swung round, or drawn aside; the movable part of a drawbridge. See the Note under Drawbridge. [U.S.]

fable was the invention of Esop; that falsehood was her own invention. We entered by the drawbridge, which has an invention to let one fall if not premonished. Evelyn.

e impulse is given. Saunier. Dead lift. See under Dead. Swift. -- Lift bridge, a kind of drawbridge, the movable part of which is lifted, instead of being drawn aside. -- Lift gate, a gate that is opened by lifting. -- Lift hammer. See Tilt hammer. -- Lift lock, a canal lock. -- Lift pump, a lifting pump. -- Lift…

powder and attached to a plank, to be exploded against and break down gates, barricades, drawbridges, etc. It has been superseded.

y or line moves around him in wheeling; -- called also pivot man. Pivot bridge, a form of drawbridge in which one span, called the pivot span, turns about a central vertical axis. -- Pivot gun, a gun mounted on a pivot or revolving carriage, so as to turn in any direction. -- Pivot tooth (Dentistry), an artificial cr…

A kind of balance used in raising and letting down a drawbridge. It consists of timbers joined in the form of a St. Andrew's cross. (b) pl.

f surface; as, a rolling country; rolling land. [U.S.] Rolling bridge. See the Note under Drawbridge. -- Rolling circle of a paddle wheel, the circle described by the point whose velocity equals the velocity of the ship. J. Bourne. -- Rolling fire (Mil.), a discharge of firearms by soldiers in line, in quick successi…

ng of a truck that it may have an independent lateral motion. -- Swing bridge, a form of drawbridge which swings horizontally, as on a vertical pivot. -- Swing plow, or Swing plough. (a) A plow without a fore wheel under the beam. (b) A reversible or sidehill plow. -- Swing wheel. (a) The scape-wheel in a clock, whi…

urning on a point or swivel; -- called also swivel gun. Wilhelm. Swivel bridge, a kind of drawbridge that turns round on a vertical axis; a swing bridge. -- Swivel hook, a hook connected with the iron strap of a pulley block by a swivel joint, for readily taking the turns out of a tackle. -- Swivel joint, a joint, th…

tal face plate, for turning and boring large work. -- Turning bridge. See the Note under Drawbridge. -- Turning engine, an engine lathe. -- Turning lathe, a lathe used by turners to shape their work. -- Turning pair. See the Note under Pair, n. -- Turning point, the point upon which a question turns, and which dec…