07-31-2010, 04:56 PM
Oh!
Somethng else that Russ and biL and you technical engineering type guys may find interesting - the pipe used on these supports are a spiral welded pipe. I haven't ever seen pipe like that before. Typically, it has a straight welded seam. Coils of sheet steel go through dies and it is shaped from flat into round with the seam being a straight line and the seam is welded. For this pipe, the sheet steel is wrapped around a mandril, like the way the cardboard tube in Christmas paper is made. The seam spirals around the pipe. Different!
I did use the colored pencils to simulate the visible seams, but they didn't show on the photos.
Somethng else that Russ and biL and you technical engineering type guys may find interesting - the pipe used on these supports are a spiral welded pipe. I haven't ever seen pipe like that before. Typically, it has a straight welded seam. Coils of sheet steel go through dies and it is shaped from flat into round with the seam being a straight line and the seam is welded. For this pipe, the sheet steel is wrapped around a mandril, like the way the cardboard tube in Christmas paper is made. The seam spirals around the pipe. Different!
I did use the colored pencils to simulate the visible seams, but they didn't show on the photos.
Three Foot Rule In Effect At All Times