GREENHOUSE Russian patent published in 1997 - IPC

FIELD: agriculture, in particular, hydroponic greenhouses. SUBSTANCE: greenhouse has carcass with side and central supports for holding containers with plants. Supports are connected by roof carrier members. Greenhouse has fencings. Carcass has base, binders and columns. Each central column has inclined cross bars 6 and 7, which are intersected in their upper parts and connected by rigid members 8 and 9 above or below intersection point 10. Each side column has rectangular triangles with common leg and intersecting hypotenuses. Roof carrier members mounted on rigid members are formed as drain troughs 18. Carcass carrier members have channel-shaped and/or T-shaped, and/or H-shaped section. Roof is defined by tape-shaped air vents 34 extending through the whole width of roof slope and are mounted on shafts 35 below air vents 34. Shafts 35 are connected with drives providing pivoting of shafts 35, which are offset from trough by distance equal to 1/3-1/4 of air vent width. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 13 dwg