Title: Methods for the manufacture of prefabricated building sections or room units and factories for the implementation of such methods

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Abstract: A production line and method for the manufacture and assembly of prefabricated box-shaped building sections, the production line having a manufacturing part for the construction of walls, floors, ceilings and roofs which are generally concrete cast in metal frame that were first dipped to render them corrosion-resistant with the concrete thereafter poured from an overhead conveyor to harden inside of and become affixed to the frame. A jig is provided for this purpose. A drying region is next located along the production line to receive the panels from the manufacturing part of the production line. Here, drying of the concrete occurs and panels are stored in storage areas in the drying region to complete the drying and hardening process. Next is an assembly station wherein panels which have been removed from manufacturing jigs are placed in assembly jigs by overhead cranes from directions transverse to the production line, the panels being generally orientated while in drying areas for the position they will occupy in the building section. In the assembly station, the panels are connected, at least in part by welding their metal frames together, to form a basic structural section which is then placed in an extension of the line comprising an assembly part wherein the section is supported by rollers and slowly moved by underlying conveyor chains while the sections are finished by the selected application of plumbing, electrical circuits, heating conduits, appliances, wall coverings, tiles, rugs, and the like, from storage facilities at the side of the production line. Displacement of the sections is prevented by upright guide rims which cooperate with the longitudinal frame beams of the floor panels of the sections.


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