| 摘要 |
The joint consists of a hollow prism or cylinder which at its sides normal to one another has openings which are at different levels and permit the passage of elongated structural elements, spigot like sleeves extending from the joint at an angle from at least one side of the joint. …<??>The new joint has been designed for use in spatial structures and is specially, but not exclusively, adapted for use in spatial roof construction. …<??>This joint permits quick and sure connection of the respective structural parts, the necessary operation being effected-wherever desired-in a workshop, thus permitting semi-finished structural parts to be carried to the respective building site for final assembly. |
