Pouring spout with pivoted nonuse position

A pouring spout for various containers of the type having an attachment offering an oblong opening open from one of its edges so as to permit its fitting by sliding and its maintaining in place on the neck of a container, wherein said attachment is extended, on the opposite side to the inlet cross-section of the oblong opening, by a chute connected to the attachment by an articulation zone perpendicular to its longitudinal axis, said chute being provided with catch-type assembly members which co-operate with complimentary members carried by the attachment and which together ensure the maintenance and immobilization of the chute in a direction differing from that of the attachment.