Rotary shears
Shears Shears, n. pl. [Formerly used also in the singular. See {Shear}, n., 1.] 1. A cutting instrument. Specifically: (a) An instrument consisting of two blades, commonly with bevel edges, connected by a pivot, and working on both sides of the material to be cut, -- used for cutting cloth and other substances. [1913 Webster]

Fate urged the shears, and cut the sylph in twain. --Pope. [1913 Webster] (b) A similar instrument the blades of which are extensions of a curved spring, -- used for shearing sheep or skins. (c) A shearing machine; a blade, or a set of blades, working against a resisting edge. [1913 Webster]

2. Anything in the form of shears. Specifically: (a) A pair of wings. [Obs.] --Spenser. (b) An apparatus for raising heavy weights, and especially for stepping and unstepping the lower masts of ships. It consists of two or more spars or pieces of timber, fastened together near the top, steadied by a guy or guys, and furnished with the necessary tackle. [Written also {sheers}.] [1913 Webster]

3. (Mach.) The bedpiece of a machine tool, upon which a table or slide rest is secured; as, the shears of a lathe or planer. See Illust. under {Lathe}. [1913 Webster]

{Rotary shears}. See under {Rotary}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Rotary shears — Rotary Ro ta*ry, a. [L. rota a wheel. See {Roll}, v., and cf. {barouche}, {Rodomontade}, {Rou[ e]}, {Round}, a., {Rowel}.] Turning, as a wheel on its axis; pertaining to, or resembling, the motion of a wheel on its axis; rotatory; as, rotary… …   The Collaborative International Dictionary of English

  • rotary shears — Смотри дисковые ножницы …   Энциклопедический словарь по металлургии

  • Shears — Shears, n. pl. [Formerly used also in the singular. See {Shear}, n., 1.] 1. A cutting instrument. Specifically: (a) An instrument consisting of two blades, commonly with bevel edges, connected by a pivot, and working on both sides of the material …   The Collaborative International Dictionary of English

  • Rotary — Ro ta*ry, a. [L. rota a wheel. See {Roll}, v., and cf. {barouche}, {Rodomontade}, {Rou[ e]}, {Round}, a., {Rowel}.] Turning, as a wheel on its axis; pertaining to, or resembling, the motion of a wheel on its axis; rotatory; as, rotary motion.… …   The Collaborative International Dictionary of English

  • Rotary engine — Rotary Ro ta*ry, a. [L. rota a wheel. See {Roll}, v., and cf. {barouche}, {Rodomontade}, {Rou[ e]}, {Round}, a., {Rowel}.] Turning, as a wheel on its axis; pertaining to, or resembling, the motion of a wheel on its axis; rotatory; as, rotary… …   The Collaborative International Dictionary of English

  • Rotary pump — Rotary Ro ta*ry, a. [L. rota a wheel. See {Roll}, v., and cf. {barouche}, {Rodomontade}, {Rou[ e]}, {Round}, a., {Rowel}.] Turning, as a wheel on its axis; pertaining to, or resembling, the motion of a wheel on its axis; rotatory; as, rotary… …   The Collaborative International Dictionary of English

  • Rotary valve — Rotary Ro ta*ry, a. [L. rota a wheel. See {Roll}, v., and cf. {barouche}, {Rodomontade}, {Rou[ e]}, {Round}, a., {Rowel}.] Turning, as a wheel on its axis; pertaining to, or resembling, the motion of a wheel on its axis; rotatory; as, rotary… …   The Collaborative International Dictionary of English

  • rotary shear — noun 1. : a rotating bedplate of a lathe 2. rotary shears plural : a machine having a pair of rotary overlapped cutter wheels for shearing sheet metal along a curved line …   Useful english dictionary

  • shears — I (New American Roget s College Thesaurus) n. pl. scissors, clippers. See sharpness. II (Roget s IV) n. Syn. cutters, clippers, scissors, snips, nippers, snippers. Types of shears include: lever, alligator, crocodile, barber s, blending, cuticle …   English dictionary for students

  • slitting shears — noun plural : a shearing machine for cutting sheet metal; especially : rotary shears …   Useful english dictionary

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