Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 196
n connection with the expansion joint. It will be seen that on the left hand side of the joint the casting [is enlarged so as to form a spherical cavity into which one end of the pipe line, C, is screwed in the same manner as into a regular coupling. The spherical cavity contains a ball supported… … however, any rupture occur, the current of water flowing through the main will, by reason of the break, be greatly accelerated, and acting on the ball cause it to roll up along the ribs and seat itself on either side of the spherical cavity toward which the current may be flowing, thus com- pletely…
Engineering
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