04-02-2010, 07:12 PM
I used to watch drillers lift 40' pieces of steel pipe, 40 inches in diameter, and 1/2" thick. I would have thought the weight would require them to weld lifting rings to the pipe, or at least torch holes to run a cable through. That wasn't usually the case. Instead, they simply bolted a couple of clamps to the lip of the pipe and lifted it vertical. i would never guess such a clamp would be strong enough, but I never saw a pipe get dropped.
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Kevin
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Kevin
Check out my Shapeways creations!
3-d printed items in HO/HOn3 and more!
<!-- m --><a class="postlink" href="https://www.shapeways.com/shops/kevin-s-model-train-detail-parts">https://www.shapeways.com/shops/kevin-s ... tail-parts</a><!-- m -->
