| 摘要 |
<p>The fixing device for a window-frame comprises a plate (8) secured to the main part of the frame (1), and having a lengthwise edge bent over into a hook shape and extending along the frame when installed. A second plate (9) is secured to the outer part (5) of the frame, and also has a lengthwise edge bent over to form a hook, this edge being at an acute angle to that of the plate on the main part. A coupling member (10) has two lengthwise edges bent over, the angle between them corresponding to that between the edges of the two plates, over which it is fitted.</p> |
