e jacket of the full metal-patched bullet method of making such a connection under water be- thread in the shank A. After the tween pipes of large diameter. The coupling consists jaws have been moved to approx- of two similar cylindrical sleeves A, formed with imately the position desired, the… … secured by Mr. VV. K. Gor- COUPLING FOR LARGE PIPES. A NEW MUSHROOM BULLET AND THE WOUNDS IT MAKES,
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