The boys' book of engine-building; . OLDER HERE CRANKSOLDER CRANK PIN Fig. 25 A. The Crank and Crankshaft the head to the cylinder using your soldering cop-per to do the job. Be careful that the head is on so that the pis-ton will work forth and back without you have done this, go ahead and solderon the other head to the cylinder and the hardestpart of your engine is made. The Crankshaft, Flywheel and Pulley.—A A Simple Piston Steam Engine 51 straight piece of wire %2, or Vs inch thick and 3inches long will serve for the crankshaft, thatis that part of the engine which revolves, t
The boys' book of engine-building; . OLDER HERE CRANKSOLDER CRANK PIN Fig. 25 A. The Crank and Crankshaft the head to the cylinder using your soldering cop-per to do the job. Be careful that the head is on so that the pis-ton will work forth and back without you have done this, go ahead and solderon the other head to the cylinder and the hardestpart of your engine is made. The Crankshaft, Flywheel and Pulley.—A A Simple Piston Steam Engine 51 straight piece of wire %2, or Vs inch thick and 3inches long will serve for the crankshaft, thatis that part of the engine which revolves, towhich the piston rod is connected and on whichthe flywheel and pulley are fixed. For the crank, see A, Fig. 25, cut out a piece. Fig. 25 B. A Spoked Fly-Wheel of brass Yi§ inch thick and % inch long, and makeone end % inch wide and the other end % inchwide; drill a Vi6-inch hole in the small end and a%-inch hole in the large end; fit in and solder oneend of the crankshaft to the crank and solder a/46-inch wire, % inch long, into the other end forthe crank pin. Almost any kind of a wheel will do for the fly- 52 The Boys Book of Engine-Building wheel, see B, but it should be pretty large, say3 inches in diameter, and it should be ratherheavy, say about 2 ounces, and the larger itis for its weight the smoother the engine willrun. You can cast a flywheel with a little pulley onit by sawing out a wooden pattern first, makinga mould of plaster parts and pouring in somemelted type An easier way is to buy onealready cast. The Engine Bed.—This is a block of wood 1inch thick, 2Y2 inches wide and 5 inches long onwhich to mount the engine; sandpaper it smoothand give it a coat of red paint. Cut out a frame of a
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Keywords: ., bookcentury1900, bookdecade1910, bookpub, booksubjectsteamengines
