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cillating 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 next before the trunnions. [R.]…

Tubipore. -- Tube foot (Zoöl.), one of the ambulacral suckers of an echinoderm. -- Tube plate, or Tube sheet (Steam Boilers), a flue plate. See under Flue. -- Tube pouch (Mil.), a pouch containing priming tubes. -- Tube spinner (Zoöl.), any one of various species of spiders that construct tubelike webs. They belong…

oral), consists of a mass of parallel cylindrical tubes united at intervals by transverse plates. These corals are usually red or purple and form large masses. They are natives of the tropical parts of the Indian and Pacific Oceans.

trachea. -- Tubular bridge, a bridge in the form of a hollow trunk or tube, made of iron plates riveted together, as the Victoria bridge over the St. Lawrence, at Montreal, Canada, and the Britannia bridge over the Menai Straits. -- Tubular girder, a plate girder having two or more vertical webs with a space between…

In plate armor, a suspended plate in from of the thigh. See Illust. of Tasses.

a spiral; scroll-like; turbinate; -- applied to the thin, plicated, bony or cartilaginous plates which support the olfactory and mucous membranes of the nasal chambers.

for. -- To turn a flange (Mech.), to form a flange on, as around a metal sheet or boiler plate, by stretching, bending, and hammering, or rolling the metal. -- To turn against. (a) To direct against; as, to turn one's arguments against himself. (b) To make unfavorable or hostile to; as, to turn one's friends against…

d. Turning and boring mill, a kind of lathe having a vertical spindle and horizontal 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…

A large revolving platform, for turning railroad cars, locomotives, etc., in a different direction; -- called also turnplate.

A revolving tower constructed of thick iron plates, within which cannon are mounted. Turrets are used on vessels of war and on land.

The curved plate in which the form is held in a type-revolving cylinder press. Alligator turtle, Box turtle, etc. See under Alligator, Box, etc. -- green turtle (Zoöl.), a marine turtle of the genus Chelonia, having usually a smooth greenish or olive-colored shell. It is highly valued for the delicacy of its flesh, wh…

To raise or support by something laid under; as, to underlay a cut, plate, or the like, for printing. See Underlay, n., 2.

The whole; the general system of the universe; the universe. [Obs.] Plato calleth God the cause and original, the nature and reason, of the universal. Sir W. Raleigh.

To take out the folds or twists of, as something previously platted; to unfold; to unwreathe.

To take out, or loose, the rivets of; as, to unrivet boiler plates.

One of the plates on the under side of the tail of a serpent.

- Vacuum pump. Same as Pulsometer, 1. -- Vacuum tube (Phys.), a glass tube provided with platinum electrodes and exhausted, for the passage of the electrical discharge; a Geissler tube. -- Vacuum valve, a safety valve opening inward to admit air to a vessel in which the pressure is less than that of the atmosphere, i…

The place of meeting of two slopes of a roof, which have their plates running in different directions, and form on the plan a reëntrant angle.

bject for the purpose of showing which way the wind blows; a weathercock. It is usually a plate or strip of metal, or slip of wood, often cut into some fanciful form, and placed upon a perpendicular axis around which it moves freely. Aye undiscreet, and changing as a vane. Chaucer.

A fogged plate.