Improvements in and relating to Lattice or Truss Girders, Columns and the like.

摘要

28,382. Visintini, F. Dec. 23. Building-blocks for ventilation; flues.-Cement or artificial-stone lattice girders or blocks are strengthened by tie-rods g, e connected by hooked diagonal rods f embedded in the flanges a, band the ribs d in tension. The girders are laid side by side to form ceilings, floors, and walls with continuous flues or passages for heating or ventilation, and are connected by cement run into recesses i, h in the edges of the flanges a and webs d.