FIELD: construction.
SUBSTANCE: adjustable angle element of a drainage system includes two chutes of a semi-circular section. Each chute has straight and bent parts connected so that the chutes can be moved through the specified angle and the bent part of one chute can overlap the bent part of the other chute, rounded projections, each of which is connected with its lower side along the chute to the corresponding upper edge of the straight part of the chute and located on the outer side of the chute so that between the upper side of the rounded projection and the upper edge of the straight part of the chute there is free space with a possibility of being connected to parts of the drainage system, and projections of the semi-circular section, each of which is connected with one side along the rounded projection to the upper side of the corresponding rounded projection and located on the inner side of the chute so that is can be connected to parts of the drainage system.
EFFECT: improvement of a structure.
12 cl, 6 dwg
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