Closure ring assembly for steel drums
a technology of steel drums and assembly parts, which is applied in the direction of packaging, fastening means, clamping mechanisms, etc., can solve the problems of container failure, container damage, and possible contamination of both the storage container and its surroundings, and achieve the effect of tight connection
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[0018] With reference to FIGS. 1-3 of the drawings, the drum ring of this invention is split to provide two adjacent ends 11, 12 that are capable of surrounding an open-headed drum 13 and secure the lid 14. At the ring ends are lugs 15, 16, each having a hole passing tranversely therethrough to receive a tie bolt 20. One of the lugs 15 is threaded to receive the threaded end 21 of the tie bolt 20 and the other lug 16 has an unthreaded hole 22 which is large enough for the tie bolt 20 to pass through it. A tapered conical shoulder 23 is integrally formed onto the bolt 20 head which is designed to be substantially flush with the tapered face 24 of lug 16. The unthreaded lug 16 has a conical shoulder 26 integrally formed on its opposite face 27 which is designed to be flush with a taper in the face 28 of the second threaded lug 15. Accordingly, when the unthreaded lug 16 is drawn into engagement with the threaded lug 15 by turning the bolt 20 head, the bolt head shoulder 23 engages the...
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