| 摘要 |
A flanged pipe coupling for connecting together two pieces of pipe, the coupling having a flat circular flange having an upper surface and a lower surface, the flanged pipe coupling further having a cylindrical portion of lesser outer diameter than that of the circular flange and extending upwardly from the upper surface of the circular flange, the outer diameter of the cylindrical portion being preferably less than the diameter of the hole through the floor, the cylindrical portion having an upper end with a first bore therein for receiving a first pipe therein, the cylindrical portion having an lower end with a second bore therein for receiving a second pipe therein, the cylindrical portion being provided with an internal flange projecting inwardly between the bores and having an internal diameter less than the outer diameter of the pipes to be connected together.
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