Removing Basketball from Closed-Bottom Receptacle
The closed-bottom basket used in the game of basketball is so high that it is difficult to remove the ball after a goal is made. Generally a long stick is used for this purpose, but I desired to have a better way, and the device shown in the illustration was the outcome. A light iron rod was hinged to the edge of the basket and bent to its inner shape, the lower end resting at about the center of the basket. A rope was attached to the lower end and run up and over a sheave pulley attached to the basket support, then down so it could be easily grasped. When a goal is made, it is only necessary to give a pull on the rope for throwing the ball out of the basket.—Contributed by Annie B. Currine, San Diego, Cal.
The Iron Rod in the Basket Throws the Ball Out When the Rope is Pulled
Testing Dry Batteries
For testing dry batteries or any low-voltage current, take an ordinary thermometer and wind around the mercury bulb enough wire to make about 10 ohms resistance. This will make a good tester. A dry cell of about 2 volts attached to the ends of the wire should generate enough heat to expand the mercury about four degrees in one-half minute.
This tester is not as fast as a voltmeter, nor has it as wide a range, but it is reasonably accurate, and by using a battery of known voltage, the winding can be increased or diminished to allow the mercury to expand as many degrees as desired per volt.—Contributed by E. H. Kimbrough, Bartlett, Kan.
A Wall-Paper Cleaner
To 1 qt. of flour add about 2 oz. of 90-per-cent ammonia and enough lukewarm water to make a dough. Wipe the paper with this preparation while turning and kneading it as in making dough. This will take up the dirt and a clean side is always presented to the paper.—Contributed by F. C. Myer, Tacoma, Wash.