Means for detachably securing a plurality of supporting legs to a horizontal member to support same

Means for detachably securing a plurality of supporting legs which are generally square-shaped in cross section to a horizontal member to support same, said horizontal member having a plurality of downwardly depending corners, a diagonal connecting member positioned diagonally between adjacent sides of each said corner and secured to said adjacent sides, said diagonal connecting member having internally threaded means, an adjustable member supported by said diagonal connecting member, said adjustable member being externally threaded to engage said internally threaded means for adjusting said adjustable member with respect to said leg, a U-shaped member which is diagonally positioned and engaged by said adjustable member with the spaced sides of the U-shaped member engaging the inermost right-angled corner of said generally square-shaped leg and adapted to apply pressure against the leg to hold the leg in said corner between the said adjacent sides, said adjustable member when retracted permitting removal of said leg.