| 摘要 |
A standard container having the usual filling neck with threads is converted into a device for throwing a lifeline from a safe area, such as a boat, over open water to a desired spot where it functions as a buoy and tow rope. After removal of the standard cap, a replacement cap is telescopically threaded to the standard container neck, and includes a tube extending into the container and being closed at its bottom end, so as to render the container water tight, after a small amount of water has been added to the otherwise empty container for ballast. The line is stored within the replacement cap tube, and is secured to the bottom of the tube. The top end of the tube is closed by an easily removable cap that is secured to one end of the line and forms an anchor for one end of the line to be held in one hand, while the container is thrown with the other hand.
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