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lead screw

[leed]
noun
  1. (on a lathe) a rotating horizontal screw for moving the tool carriage along the work at a constant rate.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for lead screw

Historical Examples

  • The 24-tooth gear goes on the spindle stud and, the 40-tooth gear on the lead-screw.

    Turning and Boring

    Franklin D. Jones

  • As previously explained, lead-screw S is only used for feeding the carriage when cutting threads.

    Turning and Boring

    Franklin D. Jones

  • The carriage should not be disengaged from the lead-screw after starting the cut, the tool being returned by reversing the lathe.

    Turning and Boring

    Franklin D. Jones

  • The dial, therefore, would enable the carriage to be engaged with the lead-screw at points equal to a travel of one-half inch.

    Turning and Boring

    Franklin D. Jones

  • Suppose that nine threads to the inch are to be cut and the lead-screw has six threads per inch.

    Turning and Boring

    Franklin D. Jones


British Dictionary definitions for lead screw

lead screw

noun
  1. a threaded rod that drives the tool carriage in a lathe when screw cutting, etc
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012