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2 definitions found
 for To heave the log
From The Collaborative International Dictionary of English v.0.48 :

  Log \Log\, n. [Icel. l[=a]g a felled tree, log; akin to E. lie.
     See Lie to lie prostrate.]
     1. A bulky piece of wood which has not been shaped by hewing
        or sawing.
        [1913 Webster]
  
     2. [Prob. the same word as in sense 1; cf. LG. log, lock,
        Dan. log, Sw. logg.] (Naut.) An apparatus for measuring
        the rate of a ship's motion through the water.
        [1913 Webster]
  
     Note: The common log consists of the log-chip, or logship,
           often exclusively called the log, and the log line, the
           former being commonly a thin wooden quadrant of five or
           six inches radius, loaded with lead on the arc to make
           it float with the point up. It is attached to the log
           line by cords from each corner. This line is divided
           into equal spaces, called knots, each bearing the same
           proportion to a mile that half a minute does to an
           hour. The line is wound on a reel which is so held as
           to let it run off freely. When the log is thrown, the
           log-chip is kept by the water from being drawn forward,
           and the speed of the ship is shown by the number of
           knots run out in half a minute. There are improved
           logs, consisting of a piece of mechanism which, being
           towed astern, shows the distance actually gone through
           by the ship, by means of the revolutions of a fly,
           which are registered on a dial plate.
           [1913 Webster]
  
     3. Hence: The record of the rate of speed of a ship or
        airplane, and of the course of its progress for the
        duration of a voyage; also, the full nautical record of a
        ship's cruise or voyage; a log slate; a log book.
        [1913 Webster +PJC]
  
     4. Hence, generally: A record and tabulated statement of the
        person(s) operating, operations performed, resources
        consumed, and the work done by any machine, device, or
        system.
        [1913 Webster +PJC]
  
     5. (Mining) A weight or block near the free end of a hoisting
        rope to prevent it from being drawn through the sheave.
        [1913 Webster]
  
     6. (computers) A record of activities performed within a
        program, or changes in a database or file on a computer,
        and typically kept as a file in the computer.
        [PJC]
  
     Log board (Naut.), a board consisting of two parts shutting
        together like a book, with columns in which are entered
        the direction of the wind, course of the ship, etc.,
        during each hour of the day and night. These entries are
        transferred to the log book. A folding slate is now used
        instead.
  
     Log book, or Logbook (Naut.),
        (a) a book in which is entered the daily progress of a
            ship at sea, as indicated by the log, with notes on
            the weather and incidents of the voyage; the contents
            of the log board.
        (b) a book in which a log[4] is recorded.
  
     Log cabin, Log house, a cabin or house made of logs.
  
     Log canoe, a canoe made by shaping and hollowing out a
        single log; a dugout canoe.
  
     Log glass (Naut.), a small sandglass used to time the
        running out of the log line.
  
     Log line (Naut.), a line or cord about a hundred and fifty
        fathoms long, fastened to the log-chip. See Note under 2d
        Log, n., 2.
  
     Log perch (Zool.), an ethiostomoid fish, or darter
        ({Percina caprodes); -- called also hogfish and
        rockfish.
  
     Log reel (Naut.), the reel on which the log line is wound.
        
  
     Log slate. (Naut.) See Log board (above).
  
     Rough log (Naut.), a first draught of a record of the
        cruise or voyage.
  
     Smooth log (Naut.), a clean copy of the rough log. In the
        case of naval vessels this copy is forwarded to the proper
        officer of the government.
  
     To heave the log (Naut.), to cast the log-chip into the
        water; also, the whole process of ascertaining a vessel's
        speed by the log.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Heave \Heave\ (h[=e]v), v. t. [imp. Heaved (h[=e]vd), or
     Hove (h[=o]v); p. p. Heaved, Hove, formerly Hoven
     (h[=o]"v'n); p. pr. & vb. n. Heaving.] [OE. heven, hebben,
     AS. hebban; akin to OS. hebbian, D. heffen, OHG. heffan,
     hevan, G. heben, Icel. hefja, Sw. h[aum]fva, Dan. h[ae]ve,
     Goth. hafjan, L. capere to take, seize; cf. Gr. kw`ph handle.
     Cf. Accept, Behoof, Capacious, Forceps, Haft,
     Receipt.]
     1. To cause to move upward or onward by a lifting effort; to
        lift; to raise; to hoist; -- often with up; as, the wave
        heaved the boat on land.
        [1913 Webster]
  
              One heaved ahigh, to be hurled down below. --Shak.
        [1913 Webster]
  
     Note: Heave, as now used, implies that the thing raised is
           heavy or hard to move; but formerly it was used in a
           less restricted sense.
           [1913 Webster]
  
                 Here a little child I stand,
                 Heaving up my either hand.         --Herrick.
           [1913 Webster]
  
     2. To throw; to cast; -- obsolete, provincial, or colloquial,
        except in certain nautical phrases; as, to heave the lead;
        to heave the log.
        [1913 Webster]
  
     3. To force from, or into, any position; to cause to move;
        also, to throw off; -- mostly used in certain nautical
        phrases; as, to heave the ship ahead.
        [1913 Webster]
  
     4. To raise or force from the breast; to utter with effort;
        as, to heave a sigh.
        [1913 Webster]
  
              The wretched animal heaved forth such groans.
                                                    --Shak.
        [1913 Webster]
  
     5. To cause to swell or rise, as the breast or bosom.
        [1913 Webster]
  
              The glittering, finny swarms
              That heave our friths, and crowd upon our shores.
                                                    --Thomson.
        [1913 Webster]
  
     To heave a cable short (Naut.), to haul in cable till the
        ship is almost perpendicularly above the anchor.
  
     To heave a ship ahead (Naut.), to warp her ahead when not
        under sail, as by means of cables.
  
     To heave a ship down (Naut.), to throw or lay her down on
        one side; to careen her.
  
     To heave a ship to (Naut.), to bring the ship's head to the
        wind, and stop her motion.
  
     To heave about (Naut.), to put about suddenly.
  
     To heave in (Naut.), to shorten (cable).
  
     To heave in stays (Naut.), to put a vessel on the other
        tack.
  
     To heave out a sail (Naut.), to unfurl it.
  
     To heave taut (Naut.), to turn a capstan, etc., till the
        rope becomes strained. See Taut, and Tight.
  
     To heave the lead (Naut.), to take soundings with lead and
        line.
  
     To heave the log. (Naut.) See Log.
  
     To heave up anchor (Naut.), to raise it from the bottom of
        the sea or elsewhere.
        [1913 Webster]

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