Variable flush toilet valve mechanism

Claim 1

For use in a conventional ball-valve type of water tank for flush toilets which includes therein a flush lift-lever operative by means of a flush handle located external of said tank, an overflow standpipe, a stem-guide bracket firmly attached to said standpipe, and a water outlet valve seat: a selectively variable valving device comprising, in combination: an elongated U-shaped rod of solid circular cross-section and having a substantially flat horizontally positioned top portion interconnecting two downwardly extending vertical leg portions, the first of said legs passing through the bore in said stem-guide bracket and terminating at its lower open end in means for removably attaching a valve-closure member, the second leg being notched, undulated or otherwise provided with a frictionalized outer surface along its length; a solid non-buoyant valve-closure member removably attached directly to said first downwardly extending leg at its lower end; and a buoyant float having a circular central bore extending therethrough complementary in size to the circular cross-section of said rod, movably positioned on said second leg and frictionally supported thereon.