Apply a coat of vulcanizing cement and when it has dried, say
for an hour, apply another. When this has dried enough to be
sticky or tacky, fill as much of the hole as possible with gum. When
this is filled in level, apply the fabric patch. This is made up to
match the fabric cutout, that is, if three layers are removed, it should
consist of three plies stepped-up to match, and an extra last ply of
bareback fabric unfrictioned on one side. This last layer should
extend 3§ to 4 inches beyond the ends of the patch,

When this is properly applied and carefully smoothed down, the
tire is placed in a sectional mold, clamped in place, perhaps wrapped
with muslin strips to bold it tightly against the mold, and heat applied
from the inside. This makes an excellent repair and a fairly quick
and easy one, but it is not applicable for large blowouts; at least, it is
not as effective as the inside and outside method.
GASOLINE AUTOMOBILES 665

Inside and Ovtside Method. In the inside and outside method,
the material is removed from the outside, stepped down, and beveled
in the same manner as for the method just described. Fig. 566 shows
a tire with a mediiun size blowout, which has been stepped down
for a sectional repair, four plies having been removed. The rule for
the number of plies to remove is about the same as before, except that
in the larger sizes this should depend more on the nature of the injury.
