Device for joining hollow sections

Claim 1

A connecting means having a pair of component parts and wherein each component part of the connecting means for joining together tubular members comprises a pair of spigot portions extending in opposite directions from a boss, each spigot having a cross-section which is substantially half of that of one of said members so that a pair of components placed face to face from a pair of oppositely extending complete spigots for insertion respectively within said members, said boss having on its outer periphery part annular radially outwardly extending shoulders at each longitudinal end thereof and being solid and of part cylindrical cross-section, said boss having a screw substantially diametrically disposed therein apt for transverse movement with respect to said boss located such as to engage a similar screw which is diametrically opposed thereon on another component in a pair thereof when placed face to face whereby said screw can be rotated into mutual engagement with said similar screw to urge said pair of components away from one another and thereby provide resistance to withdrawl of said spigots from said tubular members, a further tubular member secured to the surface of said boss, wherein the further tubular member extends in a direction different from the spigot portions.