288 



Popular Science Monthly 



through the piece of steel while the lathe 

 is running. Countersink the face of this 

 hole. 



Clamp a jack plane, bottom up, in a 

 vise and run the cedar sticks across the 

 plane to remove the corners. 



Start the lathe on high speed, and then 

 feed the cedar sticks through the hole in 

 the piece of steel. A little pressure may- 

 be required, but if the pieces are not too 

 large, they will feed through nicely and 

 leave a well finished surface. 



To make the heads or knobs, rip some 

 cedar into pieces slightly greater than ^ 

 in. square and about 42 in. long. Drive 

 these through a ^^-in. dowel plate. 

 Fasten a piece of pine about 2 in. thick to 

 a face plate, and, while the lathe revolves, 

 drill a ^^-in. hole through the center of 

 the pine chuck. A ^s-in. drill is best, but 

 a ^-in. auger bit will do. Chuck one 

 of the ^-in. pieces of cedar in the hole 

 in the pine piece. With a drill the 

 same size as the needle, drill a hole 

 through the center of the cedar as the 

 lathe revolves. Next, remove the cedar 

 from the chuck and cut it into ^ s-in- 

 lengths. Glue one of these lengths on 

 one end of the needle. When dry, chuck 

 the needle in the hole in the steel plate 

 (a little shellac will hold it) and turn the 

 head down. The needle may be sanded 

 lightly by allowing the free end to turn in 

 the palm of one hand as the lathe runs, 

 and by applying the sandpaper with the 

 other hand. 



The needle may now be cut to length 

 and pointed on the side of an emery 

 wheel, or on a revolving disk of sand- 

 paper, glued to a chuck. French polish 

 the needle by hand, with a 'little shellac 

 and a drop or two of linseed oil. The 

 varnish may be rubbed in with a piece of 

 cheesecloth. — Daniel Green. 



Making a Lock Washer from a 

 Coil of Spring Wire 



A GOOD lock washer for emergency 

 use can be made by cutting a single 

 coil from a compression spring. This will 

 have the "set" of a regular lock washer. 

 The only difference is that the washer is 

 made of round instead of flat stock. An 

 added point in favor of this device is the 

 reidy availability of springs. 



A Heater for the Sidecar 

 of a Motorcycle 



A HEATER for a sidecar can be easily 

 made from a tin can — a gallon oil 

 can will do — and a flexible tube, such as is 

 used to supply warm air to the carbureter 

 in automobiles. Cut a round hole in one 

 side of the can, and in it fasten a tube, 

 which passes 

 through the floor 

 of the car, to serve 

 as the exhaust out- 

 let for the gases. 



One end of the 

 flexible tube is 

 slipped over the 

 filler nozzle of the 

 can and clamped in place with a hose 

 clamp or a wire wound around it and 

 .twisted tightly. The other end of the tube 

 is fastened to the tail pipe of the muffler in 

 the same way, a hole being cut in the side 

 of the sidecar allowing the tube to pass 

 through. If some covering, such as a 

 storm apron, is used, the car will be as 

 warm as desired, even in the coldest 

 weather. — N. Drynan. 



Outlet-^ 



An old can used 

 to heat a sidecar 



Caring for Rubbers to Make Them 

 Wear Longer 



RUBBER overshoes, like everything 

 . else just now, are expensive, and 

 sometimes hard to get at any price. 

 Any suggestion as to how to make them 

 last longer, will, therefore, be appreciated. 

 If you will give them a little extra care 

 and attention you will be more than 

 repaid for the trouble. 



All oils, fats, milk or acids will cause 

 rubber to blister, soften and wear out 

 quickly. Therefore keep them away 

 from your overshoes. When soiled, wash 

 the rubbers with lukewarm water. Do 

 not put them near a hot stove or steam 

 pipe, as the heat will make them 

 crack. Do not leave the rubbers outside 

 of the house, exposed, for sunlight will 

 heat and crack them. Freezing will also 

 make them brittle, so that they are 

 likely to crack when they are put on. 

 Of course it would be rank foolishness to 

 try to wear high heeled rubbers on low 

 heel shoes, or low heeled rubbers on high 

 heeled shoes. In either case, the rubbers 

 would very soon break out at the heel. 



