arch head
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noun Machinery.
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.
Nearby words
arch, arch beam, arch board, arch brace, arch dam, arch head, arch of aorta, arch of foot, arch of palate, arch of triumph, arch support
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for arch head
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