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double block

noun, Machinery
1.
a block having two sheaves or pulleys.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for double block
Historical Examples
  • There were four, for it was a heavy boat, held by a double block.

    The Grey Lady Henry Seton Merriman
  • A luff-tackle purchase, with a hook in the end of the single block, and a tail to the upper end of the double block.

    The Sailor's Word-Book William Henry Smyth
  • A rope hove through a single and a double block and made fast to the single block.

    The Gunner's Examiner Harold E. Cloke
  • The main-boom had a ring working between cheeks and carrying a double block with a single block below.

  • At each boom a seaman stood, and each held the double block of a boom-tackle, waiting the word that now came.

    The Pirate Woman Aylward Edward Dingle
  • A small luff purchase with a short fall, the double block having a tail to it, and the single one a hook.

    The Sailor's Word-Book William Henry Smyth
  • We rented one end of a double block house and school was held in the other end.

  • On the Flyaway this rope ran through a double block, or tackle.

    Little By Little William Taylor Adams
  • The halyards should be a luff purchase, the fly-block being the double block, and the single block being hooked in the channels.

    The Seaman's Friend Richard Henry Dana

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9
12
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