| 摘要 |
The invention pertains to containers capable of being vertically stacked, and in particular, relates to lids and bottoms for cans which facilitate stacking. The can lids and bottoms are identical, formed of a generally planar sheet metal body having an annular ridge extending from the body plane which projects beyond the plane of the can rolled edge. Alternate depressions and projections of complementary configuration and dimension are defined upon the ridge wherein the stacking of cans permits the recesses of one can to receive the projections of the adjacent can end, the interconnection of the recesses and projections resisting lateral can displacement, and producing an "indexed" interlocking between stacked cans.
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