• synonyms

arch head

noun Machinery.
  1. a vertical, arc-shaped member fixed to the end of a walking beam, for supporting a chain from which a pump rod or the like is suspended in such a way as to let it rise and fall vertically.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for arch head

Historical Examples

  • It is divided into four lights, and the arch-head is filled with good simple tracery.

    Scottish Cathedrals and Abbeys

    Dugald Butler and Herbert Story