| 摘要 |
A roof light, shaped as a segment of a circle in cross-section and mounted on a frame bounding a roof aperture, comprises at least two parallel members 3 connected by arcuate members 8, 9, each of which comprises an upper 8 and a lower 9 member with glazing mounted between them. A tensioning means is provided, comprising a base portion 4 joined to the member 3 and with a rocker 7 mounted on it to rotate about a horizontal axis, the upper end of the rocker 7 being in contact with the upper member 8 and the lower end with the lower member 9; tensioning the upper member 8 causes the glazing to be gripped firmly between the members 8, 9. <IMAGE> |
