block+sheave

См. также в других словарях:

• Sheave — Sheave, n. [Akin to OD. schijve orb, disk, wheel, D. schiff, G. scheibe, Icel. sk[=i]fa a shaving, slice; cf. Gr. ??? a staff. Cf. {Shift}, v., {Shive}.] A wheel having a groove in the rim for a rope to work in, and set in a block, mast, or the… …   The Collaborative International Dictionary of English

• Sheave hole — Sheave Sheave, n. [Akin to OD. schijve orb, disk, wheel, D. schiff, G. scheibe, Icel. sk[=i]fa a shaving, slice; cf. Gr. ??? a staff. Cf. {Shift}, v., {Shive}.] A wheel having a groove in the rim for a rope to work in, and set in a block, mast,… …   The Collaborative International Dictionary of English

• Block — (bl[o^]k), n. [OE. blok; cf. F. bloc (fr. OHG.), D. & Dan. blok, Sw. & G. block, OHG. bloch. There is also an OHG. bloch, biloh; bi by + the same root as that of E. lock. Cf. {Block}, v. t., {Blockade}, and see {Lock}.] [1913 Webster] 1. A piece… …   The Collaborative International Dictionary of English

• Block printing — Block Block (bl[o^]k), n. [OE. blok; cf. F. bloc (fr. OHG.), D. & Dan. blok, Sw. & G. block, OHG. bloch. There is also an OHG. bloch, biloh; bi by + the same root as that of E. lock. Cf. {Block}, v. t., {Blockade}, and see {Lock}.] [1913 Webster] …   The Collaborative International Dictionary of English

• Block system — Block Block (bl[o^]k), n. [OE. blok; cf. F. bloc (fr. OHG.), D. & Dan. blok, Sw. & G. block, OHG. bloch. There is also an OHG. bloch, biloh; bi by + the same root as that of E. lock. Cf. {Block}, v. t., {Blockade}, and see {Lock}.] [1913 Webster] …   The Collaborative International Dictionary of English

• sheave — sheave1 [shēv, shiv] n. [ME sheve, var. of schive < OE * scife, akin to Ger scheibe, disk < IE * skeip < base * skei , to cut > SHEATH] a wheel with a grooved rim, such as is mounted in a pulley block to guide the rope or cable;… …   English World dictionary

• block and tackle — Pulley Pul ley, n.; pl. {Pulleys}. [F. poulie, perhaps of Teutonic origin (cf. {Poll}, v. t.); but cf. OE. poleine, polive, pulley, LL. polanus, and F. poulain, properly, a colt, fr. L. pullus young animal, foal (cf. {Pullet}, {Foal}). For the… …   The Collaborative International Dictionary of English

• Sheave (mechanical) — A sheave (pronounced shiv ) is a wheel or roller with a groove along its edge for holding a belt, rope or cable. When hung between two supports and equipped with a belt, rope or cable, one or more sheaves make up a pulley. The words sheave and… …   Wikipedia

• Block and tackle — A block and tackle [ Tackle can be pronEng|ˈteɪkəl in this usage.] is a system of two or more pulleys with a rope or cable threaded between them, usually used to lift or pull heavy loads. TOC Overview Although used in many situations, they are… …   Wikipedia

• block — I (New American Roget s College Thesaurus) n. hindrance, blockage, obstruction; row, street, square (See abode); mass, lump, cube (See density). v. t. impede, check, stop, bar; thwart, foil. See closure, identity. II (Roget s IV) n. 1. [A mass,… …   English dictionary for students

• Block (sailing) — In sailing, a block is a single or multiple pulley. One or a number of sheaves are enclosed in an assembly between cheeks or chocks . In use a block is fixed to the end of a line, to a spar or to a surface. Rope or line is rove through the… …   Wikipedia