CAGE JOINT FOR THE CONTAINMENT OF NUTS AND TERMINALS FOR RODS MADE FROM SECTION TUBES WITH A CIRCULAR SECTION, PROVIDED WITH BOLTS FOR SCREWING ONTO THE NUTS, FOR MAKING FLAT AND SPATIAL TUBULAR STRUCTURES

摘要

Complete slots and slots which are completed when two of them are joined are made in caps with a hemispherical form and in ones in the form of segments of hemispheres. The caps of the two types can be coupled with each other and, if both are hemispherical, they form a hollow sphere; if one is hemispherical and the other is a segment of a hemisphere they form a hollow sphere segment with two bases. The union of the two caps is preferably carried out by means of welding, after which inside nuts and inserts which allow the nuts to move along the slots only are inserted into the cavity. Bolts can be screwed onto the nuts which are part of the terminals of rods obtained from section tubes with circular sections. IMAGE