| 摘要 |
A VALVE MECHANISM FOR CONTROLLING THE FLOW OF FLUID THROUGH A CONDUIT MEANS,INCLUDING DRAW OFF TAPS,STOP-VALVES AND THE LIKE,FROM AN INLET PASSAGE VIA AN OPENING TO AN OUTLET PASSAGE OF SAID CONDUIT,SAID VALVE MECHANISM COMPRISING - A THREADLESS SPINDLE WHICH LOWER END IS ADAPTED TO BE A SHAFT;- AN ELONGATED CARRIAGE PROVIDED WITH AN EXTERIOR SURFACE WITH SCREW THREADING;A BORE OPEN FROM THE TOP END OF SAID CARRIAGE FOR RECEIVING THE SPINDLE’S SHAFT TO RECEIVE TORQUE THEREFROM;AND A LOWER END ADAPTED TO HOLD A WASHER ;- A HOUSING WITH AN INTERIOR SURFACE SUBSTANTIALLY CYLINDRICAL AND PROVIDED WITH SCREW THREADING COMPLEMENTARY TO THAT OF THE EXTERIOR SURFACE OF SAID CARRIAGE;SAID HOUSING IS ADAPTED TO BE ATTACHED TO SAID CONDUIT WITH SAID WASHER POSITIONED OVER SAID VALVE OPENING;CHARACTERISED IN THAT THE THREADING OF THE CARRIER AND HOUSING HAVE MULTIPLE STARTS.FIGURE 2
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