Shade arrangement for solar greenhouses and the like

Details Shade arrangement for solar greenhouses and the like Shade arrangement for solar greenhouses and the like

A - Human Necessities

01

G

47/6

A01G 9/00 (2006.01) A01G 9/22 (2006.01) E06B 9/68 (2006.01) E06B 9/174 (2006.01)

Patent

CA 1268337

ABSTRACT OF THE DISCLOSURE A solar greenhouse construction is provided in which a glazing is supported by a supporting frame to define an enclosed space. The glazing is permeable to solar radiation. A shade is provided for being drawn across the glazing to intercept the solar radiation. A motor driven roller is connected to one end of the shade to play out the shade or wind the same up. To the other end of the shade is connected a constant force or constant torque device which overcomes friction and keeps the shade stretched out. This device consists of a coiled up spring which is reverse wound onto a roller to which is connected a cable connected to the shade. -33-

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