Rail for guiding sheet-metal edges which are to be welded together
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United States of America Patent
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-
Apr 7, 1992
Grant Date -
N/A
app pub date -
Jul 5, 1991
filing date -
Aug 7, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A Z rail for welding the longitudinal edges of can bodies has two supporting bodies, each with a longitudinal groove comprising two lateral surfaces which are at least roughly parallel to each other, and a base surface which is at least roughly perpendicular to the lateral surfaces. Each groove has an undercut profile with an enlargement, which separates one of the lateral surfaces from the base surface. An insert of hard material is interchangeably fastened in the enlargement. The insert extends at least to the plane of the opposite lateral surface and has an outer surface directed away from the base surface. These outer surfaces support the respective edges of edge margins of the sheet metal that is to form the can body. The lateral surfaces of the groove in each supporting body are designed for the direct guidance of lateral faces of the sheet-metal edge margin.
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