Fig. 50.
Now take up the can cut down to ⅜ inch and place it over a pipe anvil which is held in the vise. Use a metal hammer and hammer around the edge of this can two or three times to enlarge it. Turn the can around the anvil when hammering it. Then try to push it down over the second or turned part of the second can as shown in [Fig. 49], D. If it does not fit, continue the hammering until the two parts of the wheel fit together and then solder them in place and the wheel is completed, except for the axle holes, which may be put in exactly the same way as they are put in the first type of wheel.
PLATE IX
Steam roller made by author
Steam roller made by a boy of ten years of age in a grade school under the direction of Mr. Arthur Campbell
The large roller of the toy steam roller shown in [Plate IX] is made of rolled-rim cans as are the large wheels of the toy traction engine shown in [Plate XVIII].
Be sure to try both methods until you understand them thoroughly, as a great deal depends on the ability to make good wheels for a toy model.
Two Types of Wheels Made from Can Lids.—A third method of making wheels is to use two can lids soldered together, but as it takes quite a while to collect eight can lids of the same diameter, it is better to employ this method only occasionally, as for flanged car wheels made to run on a track, etc. A glance at [Fig. 50], A, should be enough to show how these wheels are made up of two pushed-in can lids soldered together at their largest diameter.