This device was extensively used by our people,
and with great satisfaction. In one way care had to be taken, viz.:
That in starting the fire it did not smoke and cover the tire with
carbon or "lampblack," which is a non-conductor of heat.
Experiments were made with air forced through gasoline, and with oil
heated in a can to form gas. There was more danger in either of these
than with our blowpipe device, and no better results were obtained,
though the cost was greater.
With the change of the wheels, the brakes had to be changed the same
amount, that is, each one set in 11/2 in. This it was thought would
either require new hangers or a change in the head or shoe in some
way. We found that the hangers could easily be bent without removal.
Fig. 34 shows three hangers after passing through the bending process.
A short lever arranged to clasp the hanger just below the point, A,
was the instrument; a forked "shore" is now placed, with the fork,
against the point, A, and the other end against the car sill; press
down on the lever and you bend the hanger at A; lower the lever to a
point just below B, reverse the process, and you have the bend at B;
the whole thing taking less than two minutes per hanger. A new bolt
hole, of course, has been bored in the brake beam 11/2 in.
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