Prefabricated building

573,311. Prefabricated buildings. GENERAL PANEL CORPORATION. May 29, 1943, No. 8621. Convention date, May 30, 1942. [Classes 20 (i) and 20 (ii)] Prefabricated dwellings are made of mainly standardised sections whose length is a multiple, e.g., three, of the width, and which are secured together edge to edge by a wedge connecting device. The sections mainly comprise frames having sides 2, Fig. 1, and ends 3 nailed &c. or glued together and provided with covering material to complete a section of the building, but some frames may be braced at one or both ends to serve as door or window frames. The sides of the frames may also be notched as at b to receive transverse members when the frames are to function as floor-carrying sections. The edges of the frames are bevelled to form two faces d, Fig. 4, at 45 degrees to the edge and an edge face c and at standard intervals. slots f leading from the edges, and transverse slots e are cut to enable the frames to be connected. The frames are connected edge to edge by metal &c. cross plates 12, Figs. 7, 10, having offset ends which engage the frame edge when they are inserted in the slots f and are drawn up by wedges 13 passed through the slots e in the frames and through slots in the cross plates. The cross plates 12 of adjacent edges interengage and through the aligned slots therein connector plates 10, Fig. 9, are passed and tightened either into filling members 2' formed similarly to the frame edges, or into adjacent frames themselves, if three or more frames are required to be connected at a common axis, by further wedges 13. To make a concealed joint, one part of the frame covering, e.g., the board 16a may be loose and have a spring clip 27 so that the board may be sprung into place after completion of the joint. The wedges 13, Fig. 8, may be corrugated and have a tapered central length with ends of uniform but different thickness and teeth k may be formed on the edge of the wedges. The ends 3, Fig. 6, of floorcarrying frames may be secured to wall sections the floor frames being boarded at 17 on their lower sides and provided with a sub-floor 18 carried by filling pieces 21 and transverse bars in the floor frames the true floor 19 being separated from the sub-floor by paper &c. 20. The bottom member 2" of the joint between the floor and wall frames rests on the foundation 23, a spray board 24, e.g., of asbestos, being fitted to cover the joint. Skirting boards 22 may be fitted and channels may be formed in the w