| 摘要 |
<p>A device for firmly holding a frame adjacent to a construction member comprising a piece of sheet having marks for bending in the form of material remaining when an aperture is stamped out. The side of the stamped out aperture extending aligned with marks for bending is provided with serrations. Edges at the ends are also provided with serrations which will engage firmly in adjacent material when the device takes a zigzag shape in a space between members after compression in the longitudinal direction by the aid of a tool cooperating with hooks on the device. Said tool comprises two members which are movable relative to each other by a force exerting means. A device which is caught with hooks on the movable member and on a projecting on the other tool member is, thus, compressed in the longitudinal direction when said force exerting means is actuated.</p> |
