Metal canister roll seam

Details Metal canister roll seam Metal canister roll seam

D - Textiles, Paper

06

F

113/41, 190/78

D06F 75/26 (2006.01) B21D 51/32 (2006.01) B65D 1/40 (2006.01)

Patent

CA 1234361

Abstract of the Disclosure A method is provided for producing an end plate for a container having a continuous wall, with a novel end plate being produced thereby. The end plate includes a thickened plate which is disposed perpendicular to the continuous wall, with the thickened plate having a diameter less than the inner diameter of the cylindrical walls. A sheet having a peripheral down-turned flange is disposed above the thickened plate, with the down-turned flange having a diameter greater than the diameter of the cylindrical walls. An opening is provided in the sheet which is aligned with an opening in the thickened plate. An end portion of the continuous wall is bent outwardly to form a peipheral lip which has an outer diameter less than the diameter of the sheet. A seam between the continuous wall and the metal sheet is formed by inserting a stud into the opening and engaging a groove-containing roller to the down-turned flange and peripheral lip. The stud is utilzied to facilitate the rotation of the canister and seam with respect to each other to form a perimetral seam having no portion which extends above the plane of the sheet.

433873

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