Artificial intelligent assistant

crown-post

ˈcrown-post
  The middle post of a trussed roof, which supports the crown of the roof; the king-post.

1703 T. N. City & C. Purchaser 122 Crown-post, is that Post, which (in some Buildings) stands upright in the middle..It is also call'd a King-piece. 1703 Moxon Mech. Exerc. 159 Crown Post..Also the King-Piece, or Joggle-Piece. 1806 Gregory Dict. Arts & Sc. I. 460. 1823 P. Nicholson Pract. Build. 221.


Oxford English Dictionary

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