Abstract: An installation for the fabrication of a series of cells constituting a single construction unit such as a dwelling house or a building story includes a fabrication bed which carries members for subdividing a single placement of concrete into serveral distinct slabs each forming part of one cell. These subdividing members are removably fixed on the fabrication bed in various positions according to the intended width of the cells. The subdividing members carry a device for temporarily immobilizing the two prefabricated panels placed on each side, each device being constituted by a post, the lower end of which can be fixed in an adjustable position on the corresponding subdividing member, and by an external shore of adjustable length.

Abstract: An insulating inner panel and an outer panel are assembled together so as to form an internal space which is subsequently filled with light concrete. U-section members or flanged channel bars having uniformly spaced slots are flush-mounted within superposed horizontal channels of the inner panel. At the ends of the wall, metallic fastening pins pass through the slots and the insulating panel and pass round upright members forming part of vertical end beams against which the inner panel is applied. Between the wall ends, the fastening pins are each constituted by a loop having twisted ends and two free end portions which are passed through packing-blocks placed within the internal space and are anchored in the outer panel.