A patch of wood was
nailed to the scantling over each bolt head to prevent the bolt from
slipping back into the car. Then the wheels were mounted on these bolts,
which served as axles.
[Illustration: Fig. 299. Car Body with Axles in Place.]
Mounting the Wheels.
First a washer was placed on the axle, then the wheel was applied, with
the larger or flange disk against the face block, after which another
washer was slipped on. A nut was screwed against this washer just tightly
enough to keep the wheel snugly in place, and yet let it turn freely on
its axle. Then to keep this nut from shaking loose a second nut was
screwed on against it. While one fellow held the first nut from turning,
another screwed the second nut against it as tightly as he could. The
second nut is technically known as a "jam nut," or "lock nut." The car was
completed by laying a couple of boards across from one scantling to the
other to serve as seats.
[Illustration: Fig. 300. Section Showing How to Fasten on the Wheel.]
The Railway Track.
[Illustration: Fig. 301. The Inclined Trestle.]
The trestle was now begun. First we erected a level platform, which was to
be the starting point of the railway. This was made very substantial by
planting the corner posts firmly in the ground and then bracing them
together with diagonal braces.
Pages:
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248