| 摘要 |
<p>A device for lifting and temporarily holding an object, such as a door or window, in a raised position while the object is permanently fixed, includes a base (1) and a lifting member (4) hingedly connected to the base and means for raising one end (6) of the lifting member with respect to the base by pivoting the lifting member about the hinge. The lifting means may comprise a screw-and-nut mechanism (11, 13), with an extension (16) intended to be foot-operated to rotate threaded sleeve (13). <IMAGE></p> |
