Metering faucet

Claim 1

A METERING FAUCET WHICH INCLUDES: A TUBULAR HOUSING, INLET MEANS ARRANGED IN ONE END PORTION OF SAID HOUSING, OUTLET MEANS ARRANGED IN THE OTHER END PORTION OF SAID HOUSING, AT LEAST ONE OF SAID INLET AND OUTLET MEANS BEING IN THE FORM OF AN INSERT MEMBER ADJUSTABLY SECURED TO SAID HOUSING, FIRST AND SECOND COAXIAL RING MEANS RESPECTIVELY ARRANGED IN THE INNER ENDS OF SAID INLET AND OUTLET MEANS IN SPACED PARALLEL RELATIONSHIP TO EACH OTHER WHILE FACING EACH OTHER, A ROTATABLE COCK LOOSELY DISPOSED IN SAID HOUSING AND PROVIDED WITH A SPHERICAL SURFACE AND INTERPOSED BETWEEN AND ENGAGED BY AND CENTERED BY SAID FIRST AND SECOND RING MEANS, AND FIRST AND SECOND RING MEANS FORMING SEALING RING MEANS IN SEALING ENGAGEMENT WITH SAID SPHERICAL SURFACE, ONE ONLY OF SAID INLET AND OUTLET MEANS BEING PROVIDED WITH BYPASS CHANNEL MEANS OF SUBSTANTIAL AREA BYPASSING THE RESPECTIVE RING MEANS IN SAID ONE OF SAID INLET AND OUTLET MEANS AND PROVIDING A CHANNEL THROUGH WHICH AT LEAST PART OF THE LIQUID PASSING THROUGH THE VALVE FLOWS, SAID SPHERICAL SURFACE HAVING AN AREA EXTENDING CIRCUMFERENTIALLY THEREOF IN ABOUT THE PLANE OF THE AXIS OF SAID FIRST AND SECOND RING MEANS AND PROVIDED WITH A GROOVE EXTENDING INTO THE SURFACE AND AROUND THE AXIS OF ROTATION OF SAID COCK AND INCREASING IN CROSS-SECTION FROM A DESIRED MINIMUM CROSS-SECTION AT ONE END ALONG THE EXTENSION OF SAID PASSAGE MEANS TO A DESIRED MAXIMUM CROSS-SECTION AT THE OTHER END, THE ENDS OF SAID GROOVE BEING SPACED APART AROUND THE UNGROOVED PORTION OF THE COCK A DISTANCE AT LEAST AS GREAT AS THE CIRCUMFERENTIAL EXTENT OF THE COCK EXPOSED INSIDE ONE OF SAID RING MEANS, AND MEANS FOR ROTATING SAID COCK IN SAID HOUSING.