Page:Popular Science Monthly Volume 92.djvu/308

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��Popular Science Monthly

��Hand Sled Propeller Made of Dis- carded Buggy Wheels

FOR ice and smooth, level, well packed snow, this is a very fine sled pro- peller. It is made of two old buggy wheels with the spokes sawed ofif just where each one enters the felloes. The

���Propelling the sled over smooth snow and ice by turning the shaft between the supports

axle holes in each hub should be plugged with wood.

For a shaft, take a 3^-in. rod and bend it in the form of a crank. To support this shaft, two hardwood pieces 20 in. long, 4 in. wide and 2 in. thick are needed. These support posts should be fastened to the top of the sled by means of screws. A K-in. hole, bored through the top of each, should be slightly reamed out with a hot iron in order to make a suitable bearing for the shaft. When the shaft has been placed, the wheels should be

���' The buggy wheels arc fastened on the ends of a shaft bent to form a crank in the center

fastened in place on either end of the Bhaft. This is done by driving each end of the shaft into holes bored through the wooden plug in each wheel.

The end of each spoke should be sharpened and an 8d. finishing nail driven

��in up to the head. By using a file, this head may be sharpened to a point. Thus the nail heads will do the pushing without allowing the spokes to slip on a smooth surface.

It is evident that when a boy, sitting on the sled, turns the crank, the wheels will revolve, thus easily propelling the sled over the ice or snow. — F. E. Brimmer.

The Most Convenient Way to Lock a Motorcycle

IF it's a three-speed motorcycle that you have, simply lock the gear- shifting lever in neutral position by snap- ping your lock in the guide-slot. This method has the advantages over the ordinary scheme of chaining and locking the wheels, in that you will have no diffi- culty in moving your machine about in the garage, nor will you have to soil your

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���Two ways of locking a gear shift lever on a motorcycle to prevent its being stolen

hands while putting the lock either on or off. This same principle can be used if you have a single-speed cycle, by drilling a hole through the lever and the guide- bar, so that the lever can be locked when in the "free" position. Always remember that it pays to buy a good lock.

How to Straighten a Bent Rim on a Headlight

LAMPS are about the first part of an u automobile to sustain an injury in a wreck or accident, as the spun metal is very thin and will become dented with a slight blow. Dents on the rims or other parts of the lamp may be straightened as follows: Take the other lamp and pour melted babbit metal into the part that is bent in its mate. When the metal has cooled, it is used as an anvil to straighten the bent part. For hammering the metal, use a rubber or soft faced hammer.

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