作者: David A. Vogias
DOI:
关键词: Enclosure 、 Structural engineering 、 Cover (algebra) 、 Patio 、 Pulley 、 Engineering
摘要: A retractable cover ( 2 ) which may be mounted in any section 4 of a screened enclosure 1 between two rails 3 or to patio opening 26 ). The rolled out and opened using pulley system 23 having cables 16 ), pulleys 17 and/or rollers 24 operated manually automatically from fixed controls 18 remote 19 Retractable shades/covers installed every only certain desired sections the depending on user's desire for privacy, shade comfort level. In addition, horizontally along length multiple enclosure.