Balanced pressure mixing valve with single lever flow control

Claim 1

IN A MIXING VALVE FOR HOT AND COLD WATER COMPRISING A HOLLOW BODY HAVING A CENTRAL PASSAGE, A ROTABLE AND AXIALLY SLIDABLE HOLLOW VALVE MEMBER FITTING IN SAID CENTRAL PASSAGE WITH MEANS TO CONTROL THE INFLOW OF HOT AND COLD WATER WITH ROTATION OF SAID VALVE MEMBER IN A MANNER THAT ROTATION IN ONE DIRECTION INCREASES THE PERCENTAGE OF COLD WATER TO HOT WATER, AND IN THE OTHER DIRECTION INCREASES THE PERCENTAGE OF HOT WATER TO COLD WATER, A SLEEVE MEMBER REVOLVABLY MOUNTED ON SAID BODY FOR MOVEMENT AROUND THE AXIS OF SAID VALVE MEMBER, SAID SLEEVE MEMBER HAVING A SLOT OF LIMITED ARCUATE EXTENT IN THE UPPER PART THEREOF, A LEVER PROVIDED WITH A HANDLE AT ONE END, AND HAVING AN ENLARGED PORTION REMOTE FROM SAID HANDLE AND PROJECTING INTO AND LOOSELY EMBRACED BY SAID SLEEVE MEMBER, A PIVOT CONNECTION BETWEEN THE ENLARGED PORTION OF SAID LEVER AND SAID VALVE MEMBER, AND A SHORT ARM PROJECTING FROM SAID LEVER TO ONE SIDE OF SAID AXIS, SAID ARM BEARING A LUG, SAID LUG BEING MOVABLY POSITIONED IN SAID SLOT AND CONTACTING WITH THE LIMITING ENDS OF THE SLOTS TO LIMIT THE ROTATIONAL MOVEMENT OF THE LUG AND VALVE MEMBER, WHEREBY SAID HANDLE MAY BE MOVED LENGTHWISE AND ANGULARLY WITH RESPECT TO SAID AXIS TO ADJUST SAID VALVE MEMBER BOTH AXIALLY AND ANGULARLY INDEPENDENTLY AND CONJOINTLY AS DESIRED AND A CAP MEMBER SURROUNDING SAID SLEEVE MEMBER AND HOLDING IT IN OPERATING POSITION.