Abstract: A vertically extending distillation cylinder has a closed top and an open bottom having an electric heating element disposed therein to form a closure. Adjacent to the top of the distillation cylinder is connected a condensing tube. The condensing tube extends down through a condenser having a cooling water inlet at the bottom and a water discharge at the top. A throttle valve regulates the flow of cooling water. From the water discharge, a trough carries the water to impinge on the distillation cylinder causing pollutants to vaporize. The water collects below in a basin surrounding the distillation cylinder. A feed tube carries water from the basin to the bottom of the distillation cylinder. A discharge tube also connected to the bottom of the distillation cylinder carries water up to where it makes a U-turn. This regulates water height in the distillation cylinder. The discharge tube and an over flow tube from the basin discharge into a funnel from which water is conveyed to a sewer.

Abstract: The present can lid has an upwardly-pojecting domed segment, a narrower marginal lip extending radially outward from the domed segment and terminating in intersecting arcuate score lines which are indented in the top of the lid, an upwardly-offset hollow rib extending across the domed segment and across the marginal lip at the ends of the score lines away from their intersection, and a short upwardly-offset hollow rib on the marginal lip at the intersection of the score lines. The short rib has a radially extending score line in the top which facilitates breaking the can lid first at the intersection of the arcuate score lines when the domed segment is pushed in, after which the can lid tears open progressively along these score lines out to the transverse rib.

Abstract: The present can lid has an embossed, raised tab with a circumferentially, narrow, radially elongated segment terminating in a point at its inner end. The lid has a double score line in the bottom extending from this point along the opposite sides of the tab. The outer end of the tab is joined permanently to the remainder of the lid at an unscored segment.

Abstract: An automatic carpet kicker having a spring-propelled carpet-engaging head that is retractable by a foot-operated mechanical linkage.