HOTHOUSE Russian patent published in 1996 - IPC

FIELD: agriculture. SUBSTANCE: hothouse has film covering, carcass defined by arched rods of round shape, round pressure girdles made from flexible material, for instance polyethylene. Inner diameter of pressure girdle is equal to outer diameter of arched rod. Girdles are made in the form of tube with longitudinal recess ( with cut sector). Angle defined between radii of tube extending through edges of cut sector and tube center ranges from 5 to 90 deg. Pressure girdles may be composed of several tubes. EFFECT: increased efficiency, simplified construction, enhanced reliability, improved tightness and eliminated influence of temperature fluctuations. 5 dwg