Flush mechanism for toilets

A flush mechanism comprising a water supply control device and a water escape control device separately disposed in a flush tank and actuation means, said water supply control device including:

• support means defining a passage therethrough and having a first end secured to a bottom of the flush tank with an intake end extending outwardly through the bottom for water inlet and a second end bent to extend horizontally within said flush tank;
• a valve body member defining a passage extending vertically therethrough and communicating with the passage of the support means through an opening in a side wall of the valve body member and communicatively secured to the bent end of the support means;
• valve seat members of resilient material fitted in opposed ends of the valve body member and defining respective passages normally intercommunicating the passage in said valve body member with the interior of said tank;
• a rod member extending upwardly through the passage of the valve body to a predetermined height;
• means in the passage of said valve body member for slidably retaining the rod member in position relative to said valve body member;
• valve head members mounted on the rod member and adapted to be moved by the rod member synchronously between a first position closing the passages and a second position wherein the passages are open;
• a float connected to said rod member for actuating the valve members to move between the first and second positions via the rod member;
• means for securing the valve seat members in position in the valve body member;
• said water escape control device including:
• cylinder means having an open bottom, a top plate formed with an opening and a plurality of openings in a side wall thereof;
• means for securing the cylinder member to the bottom of the tank;
• piston means having a piston adapted to reciprocate in the cylinder means between a first position wherein the openings in the cylinder means are not sealed and a second position closing the openings, a pipe upstanding from the piston through the opening of the top plate of the cylinder member and defining a passage therebetween, and a passage extending through the pipe and the piston and downwardly communicating with the open bottom of the cylinder means;
• and
• said actuation means including a plunger and means interconnecting the plunger and the piston means for actuating the piston to move from its second position to its first position.