Article: Canadian Inventor Develops Cylindrical Tank Side Wall Construction Machine

ALEXANDRIA, Va., Aug. 16 -- Alex J. Morrison of Edmonton, Canada, has developed a machine for constructing the side wall of a cylindrical tank.

According to the U.S. Patent & Trademark Office: "The machine is adapted to supply, manipulate and position steel strip, fed from a coil, so as to bring it into gapped relationship beneath the side wall of a partly constructed, elevated tank. This is done so that the strip can be welded to the side wall to add a course. It is the objective to ensure that the tank wall is plumb (vertical) and in radius (both as to curvature and relative to the center of the tank) and that the width of the gap is optimized, at the weld point. The machine comprises ...

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