Drum clamping unit for "l" ring drum

Abstract From the Canadian patent

A drum clamping unit for plastics material drums with peripheral "L" chime rings below the drum heads is adapted to be mounted on suitable lifting and transporting devices such as lift trucks overhead, cranes, and the like to automatically engage latch, onto, and discharge one or more of the molded plastics material drums without damaging the drums. The unit has a plurality of clamping jaws automatically triggered to clamping positions by the drum heads as the unit is lowered alongside the drums. These clamping jaws are positioned to engage only with the bottom and inner face of the "L" chime ring of each drum and remain clear of the drum head and drum periphery thereby avoiding any damage …