| 摘要 |
An article to be mounted from or against the ceiling is removably coupled to a secured base fixedly secured to the ceiling, by a person standing on the floor of the room, supporting the article on the end of an elongated rod, and thrusting the article against the secured base with sufficient force to couple the article and the secured base. The article is removed from the secured base by inserting an end of the rod into the article, exerting a force on the rod to uncouple the article from the secured base, and supporting the article on the end of the rod as the article is lowered. The article is thus positioned on the ceiling, or hung from it, without being manually contacted by the person. The article may be a mounting member provided with fastening means such as hooks from which overhead signs may be hung and quickly interchanged without using a stepladder; of the article may be a smoke detector and alarm assembly which is directly mounted to the secured base.
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