Method for assembling container halves
AssigneeThe Continental Group, Inc.
InventorJohn Walter
Life of this patent
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Abstract
Apparatus and method for assembling a pair of thin-walled metal container counterparts which are brought together axially, are rounded and one inserted into the other substantially without deformation of either of the pair of counterparts so that the inner part is allowed to expand, after insertion, radially and both parts at their juncture are stressed in hoop tension for tightly embracing an adhesive interposed therebetween and thereby insure a good bond at the seam.
Claims6
A method of assembling complementary metal can components including an inner and an outer component of cylindrical thin wall sections with open ends each of which normally assumes a non-round shape and each have substantially the same internal and external diameters, comprising:
- axially aligning the components in opposing end to end relation;
- inserting the end of one aligned component into a frusto-conical portion of a rounding die and holding the same in a cylindrical configuration;
- then guiding the end of the other aligned component toward the end of the one component through another frusto-conical portion of said die which slightly compresses the same elastically sufficient to enable insertion of said end of the other component within the end of the one component in telescoping relationship therewith, then releasing the container and allowing the inner container end portion to expand radially against the outer container end portion to load the same in tension.
A method of assembling complementary metal can components comprising an inner and an outer component having cylindrical thin wall sections with open ends each of which normally tends to assume a non-round shape and each having substantially the same internal and external diameters, comprising:
- axially aligning the components in opposing end to end relation,
- inserting the end of the outer component into a frusto-conical guide surface in one side of a rounding die to round the outer component and then moving the outer component into a cylindrical portion of the die to hold the outer component cylindrical in shape,
- coating the inner component about its open end with an adhesive,
- inserting the inner component with its open end into a frusto-conical guide surface in the opposite side of said die to round said inner component and to compress the same to a diameter slightly less than that of the outer component,
- and inserting said compressed rounded inner component into said rounded outer component utilizing the adhesive as a lubricant to facilitate the insertion,
- then releasing said components while assembled from said die and conditioning the adhesive to set.
A method of assembling complementary metal can components comprising an inner and an outer component each having a cylindrical wall section with an open end and of a thickness such that each tends to assume a non-round shape and both having substantially the same internal and external diameters, comprising:
- axially aligning the components in opposing end to end relation at opposite sides of an assembly die having first and second outer frusto-conical guide surfaces flaring outwardly and an intervening cylindrical surface extending from said first of said guide surfaces to a stop overlapping the inner end of the other guide surface and providing an opening at the inner end of said other guide surface leading into said cylindrical surface, coating at least one of the components adjacent its open end on a surface opposing the other component with adhesive, inserting the outer component into said first guide surface to round same and forcing the same into said cylindrical surface against said stop, inserting the inner component into the second guide surface to round and compress same and through said opening into said outer rounded component,
- then releasing said components so that the inner one expands into the outer one, and then conditioning the adhesive to set.
Dependencies are inferred from the claim text.