Abstract: A pouring spout for a container has a tubular body to be mounted on a container wall, the inner surface of the tubular body having a guiding recess therein extending parallel to the axis of the tubular body, the recess having a greater width at the portion thereof toward one end of the tubular body and a shoulder at an end corresponding to another end of the tubular body; a tubular blade movably mounted within the tubular body and having a longitudinal projection on the outer surface thereof and an outward projection at the end of the longitudinal projection corresponding to the one end of the tubular body, the longitudinal projection being slidably engaged in the recess for guiding movement of the tubular blade into the tubular body in a direction from the one end toward the other end, the shoulder having a notch portion in an inner peripheral edge having a cross-sectional shape different from the cross-sectional shape of the longitudinal projection for blocking movement of the tubular blade in the direction

Abstract: A pouring plug for a container having two members, namely a tubular body for mounting on a container wall and a lid mounted or threadedly mounted internally of the tubular body, a tubular blade is connected to an end of a mounting portion or threaded mounting portion of the lid by an easily rupturable connecting portion or portions, and a separating structure is provided between the tubular blade and the mounting portion or the threaded mounting portion. Rotation-stop elements for the tubular blade are provided between the outer wall of the tubular blade and the inner wall of the tubular body.