Laboratory shelf for funnel-shaped glassware

Claim 1

A wire frame shelf for funnel-shaped laboratory glassware with petcocks, comprising: a plurality of horizontally displaced holders; each of said holders comprising at least two vertically disposed concentric partial rings; each of said partial rings being defined by a wire arcuate in configuration and terminating in spaced ends, said ends defining vertically aligned slots, a pair of depending U-shaped supports; each of said U-shaped supports being formed of a pair of substantially vertical uprights spaced to define an opening therebetween; each of said pair of uprights joined at its lower end to the other of said pair to form a bight; each of said U-shaped supports being secured to each of said partial rings; the first of said U-shaped supports having its uprights secured on opposite sides of said slots, with said opening in alignment with said slots; the second of said U-shaped supports having each of its uprights fastened to each said partial ring opposite from the first of said U-shaped supports; and said opening defined by said uprights of the second of said U-shaped supports in alignment with the opening defined by said uprights of the first of said U-shaped supports.