Appeal No. 1999-2148 Page 8
Application No. 08/864,947
about 54/ angles to the mandrel axis and the tape edges just
abut said steps (see Figure 3). After the rubber impregnated
fabric is applied, it and the remaining exposed cut-away
surfaces of the sections are coated with rubber cement which
is allowed to dry; a sheet of bias-cut impregnated cord fabric
15 similar to the fabric of tape 14 and having its warp yarns
extending at a like angle to the mandrel axis (see Figure 4)
is now disposed about the entire surface exposed between steps
8, 8' and for a short distance along steps 9, 9' toward the
ends of covers, 10, 10' with its warp yarns extending at bias
angularity opposite that of warp yarns of layer 14 and cement
is then applied to its outer face for reception of subsequent
layers, each of the latter in turn being likewise outwardly
coated with cement prior to receiving a succeeding overlying
layer.
Galloway's sheet 15 thus covers all the steps formed at
the ends of the cut-away fabric layers but through its close
adherence to the subjacent material its outer surface exhibits
a series of generally corresponding steps (Figure 4) and the
longitudinal spaces between them are filled in as follows:
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