hammer-beam

1 definition found

hammer-beam - Collaborative International Dictionary of English v.0.48 :

  Hammer-beam \Ham"mer-beam`\ (-b[=e]m`), n. (Gothic Arch.)
     A member of one description of roof truss, called hammer-beam
     truss, which is so framed as not to have a tiebeam at the top
     of the wall. Each principal has two hammer-beams, which
     occupy the situation, and to some extent serve the purpose,
     of a tiebeam.
     [1913 Webster]