Abstract: The flush toilet of the present invention includes a bowl which receives waste; and a discharge trap conduit which is connected to a lower portion of the bowl and extends to a discharge opening connected to an inlet of an external discharge pipe and a part of which stores sealing water. The discharge trap conduit includes: an ascending conduit which ascends rearward from the lower portion of the bowl; and a descending conduit that descends from a downstream end of the ascending conduit to the discharge opening. The descending conduit includes a bottom surface on the rear side of the discharge opening and a guiding portion formed on the bottom surface which guides the wastewater flowing horizontally from the bottom surface toward the discharge opening to be directed to either a left or right side of the center of the discharge opening.

Abstract: A flush toilet of the present invention includes a bowl portion for receiving waste and a discharge trap conduit connected to a lower portion of the bowl portion and extending to a discharge opening. The discharge trap conduit includes an ascending conduit ascending rearward from the lower portion of the bowl portion and a descending conduit descending from a downstream end of the ascending conduit to the discharge opening. The descending conduit includes a bottom surface on a rear side of the discharge opening, and a ceiling sloping surface, an upper end of the ceiling sloping surface being formed integrally with a bottom surface of a top portion of the ascending conduit, the ceiling sloping surface being formed on a front side of the discharge trap passage, and the ceiling sloping surface being inclined downward and forward from the upper end to a lower end of the discharge trap passage.

Abstract: A flush toilet of the present invention includes a bowl portion for receiving waste and a discharge trap conduit connected to a lower portion of the bowl portion and extending to a discharge opening. The discharge trap conduit includes an ascending conduit ascending rearward from the lower portion of the bowl portion and a descending conduit descending from a downstream end of the ascending conduit to the discharge opening. The descending conduit includes a bottom surface on a rear side of the discharge opening, and a ceiling sloping surface, an upper end of the ceiling sloping surface being formed integrally with a bottom surface of a top portion of the ascending conduit, the ceiling sloping surface being formed on a front side of the discharge trap passage, and the ceiling sloping surface being inclined downward and forward from the upper end to a lower end of the discharge trap passage.

Abstract: The flush toilet of the present invention includes a bowl which receives waste; and a discharge trap conduit which is connected to a lower portion of the bowl and extends to a discharge opening connected to an inlet of an external discharge pipe and a part of which stores sealing water. The discharge trap conduit includes: an ascending conduit which ascends rearward from the lower portion of the bowl; and a descending conduit that descends from a downstream end of the ascending conduit to the discharge opening. The descending conduit includes a bottom surface on the rear side of the discharge opening and a guiding portion formed on the bottom surface which guides the wastewater flowing horizontally from the bottom surface toward the discharge opening to be directed to either a left or right side of the center of the discharge opening.

Abstract: A plugging apparatus for fixing a mechanical plug within a heat transfer tube of a heat exchanger includes a main body capable of being coupled to a tool guide robot movable under remote control inside a water chamber of the heat exchanger, a plug fixing mechanism mounted on the main body for conveying a mechanical plug from outside the heat exchanger and fixing the mechanical plug in the heat transfer tube, and a clamping mechanism for clamping the main body to a tube plate of the heat exchanger at a desired position on the tube plate of the heat exchanger. The invention makes it possible to fix a mechanical plug in a heat transfer tube of a steam generator or heat exchanger of a reactor in a remote-controlled and continuous manner.