| 摘要 |
<p>INDUSTRIAL DRUMS An industrial drum constructed of synthetic resin material by rotational molding, the material being a crosslinkable high density polyethylene resin having the ability to crosslink as the drum is molded. The top end wall of the drum carries a hung opening, and an integrally molded chime at the intersection of the top wall and the side wall has a configuration which enables gripping by a mechanized drum handling apparatus and which includes a drain trough spaced at least a minimal distance from the hung opening. In one embodiment, the top end is threaded onto the side wall and a liner of relatively rigid synthetic material is placed in the drum, the liner having an upper lip with a threaded portion for placement interjacent the complementary threads of the top end and the side wall.</p> |
