cone pulley

3 definitions found

cone pulley - Collaborative International Dictionary of English v.0.48 :

  Cone \Cone\ (k[=o]n?), n. [L. conus cone (in sense 1), Gr.
     kw^nos; akin to Skr. [,c]ana whetstone, L. cuneus wedge, and
     prob. to E. hone. See Hone, n.]
     1. (Geom.) A solid of the form described by the revolution of
        a right-angled triangle about one of the sides adjacent to
        the right angle; -- called also a right cone. More
        generally, any solid having a vertical point and bounded
        by a surface which is described by a straight line always
        passing through that vertical point; a solid having a
        circle for its base and tapering to a point or vertex.
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     2. Anything shaped more or less like a mathematical cone; as,
        a volcanic cone, a collection of scori[ae] around the
        crater of a volcano, usually heaped up in a conical form.
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              Now had Night measured with her shadowy cone
              Half way up hill this vast sublunar vault. --Milton.
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     3. (Bot.) The fruit or strobile of the Conifer[ae], as of
        the pine, fir, cedar, and cypress. It is composed of woody
        scales, each one of which has one or two seeds at its
        base.
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     4. (Zool.) A shell of the genus Conus, having a conical
        form.
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     Cone of rays (Opt.), the pencil of rays of light which
        proceed from a radiant point to a given surface, as that
        of a lens, or conversely.
  
     Cone pulley. See in the Vocabulary.
  
     Oblique cone or Scalene cone, a cone of which the axis is
        inclined to the plane of its base.
  
     Eight cone. See Cone, 1.
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  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 change of sense, cf. F. poutre beam,
     originally, a filly, and E. easel.] (Mach.)
     A wheel with a broad rim, or grooved rim, for transmitting
     power from, or imparting power to, the different parts of
     machinery, or for changing the direction of motion, by means
     of a belt, cord, rope, or chain.
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     Note: The pulley, as one of the mechanical powers, consists,
           in its simplest form, of a grooved wheel, called a
           sheave, turning within a movable frame or block, by
           means of a cord or rope attached at one end to a fixed
           point. The force, acting on the free end of the rope,
           is thus doubled, but can move the load through only
           half the space traversed by itself. The rope may also
           pass over a sheave in another block that is fixed. The
           end of the rope may be fastened to the movable block,
           instead of a fixed point, with an additional gain of
           power, and using either one or two sheaves in the fixed
           block. Other sheaves may be added, and the power
           multiplied accordingly. Such an apparatus is called by
           workmen a block and tackle, or a fall and tackle.
           See Block. A single fixed pulley gives no increase of
           power, but serves simply for changing the direction of
           motion.
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     Band pulley, or Belt pulley, a pulley with a broad face
        for transmitting power between revolving shafts by means
        of a belt, or for guiding a belt.
  
     Cone pulley. See Cone pulley.
  
     Conical pulley, one of a pair of belt pulleys, each in the
        shape of a truncated cone, for varying velocities.
  
     Fast pulley, a pulley firmly attached upon a shaft.
  
     Loose pulley, a pulley loose on a shaft, to interrupt the
        transmission of motion in machinery. See Fast and loose  pulleys
        , under Fast.
  
     Parting pulley, a belt pulley made in semicircular halves,
        which can be bolted together, to facilitate application
        to, or removal from, a shaft.
  
     Pulley block. Same as Block, n. 6.
  
     Pulley stile (Arch.), the upright of the window frame into
        which a pulley is fixed and along which the sash slides.
        
  
     Split pulley, a parting pulley.
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  Cone pulley \Cone" pul"ley\
     A pulley for driving machines, etc., having two or more parts
     or steps of different diameters; a pulley having a conical
     shape.
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