| 摘要 |
<p>1505952 Awning P S BALVAS and P S RAMIS 23 April 1976 16572/76 Heading E1J A movable slat awning comprises at least two hollow rectangular-section support beams 1 with wall-plates 2 and a series of overlapping slats 11 pivotable about one edge, the first slat 14 is fixed by a bridge piece 15 on the beam 1, the operating mechanism beneath the bridge piece has a control arm 5, a driving shaft 3, a push rod 8 and a system of levers 6, 7, 9, 13 which can tilt the slats. The mechanism may be hand- or motordriven.</p> |
