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DIAPER (derived through the Fr. from the Gr. &&, through, and a rirpos, See also: rich and costly nature with embroidered See also: ornament, but now of See also: linen or See also: cotton, with a See also: simple See also: woven See also: pattern; and particularly restricted to small napkins
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In architecture, the See also: term " diaper " is given to any small pattern of a conventional nature repeated continuously and uniformly over a See also: surface; the designs may be purely geometrical, or based
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on floral forms, and in early examples were regulated by the See also: process of their textile origin
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Subsequently, similar patterns were employed in the See also: middle ages for the surface decoration of See also: stone, as in
See also: Westminster Abbey and See also: Bayeux See also: cathedral in the spandrils of the arcades of the choir and See also: nave; also in mural See also: painting, stained See also: glass, incised See also: brasses, encaustic tiles, &c
.
Probably in most cases the pattern was copied, so far as the general design is concerned, from the tissues and stuffs of See also: Byzantine manufacture, which came over to See also: Europe and were highly prized as ecclesiastical See also: vestments
.
in its textile use, the term diaper was originally applied to See also: silk patterns of a geometrical pattern; it is now almost exclusively used for See also: diamond patterns made from linen or cotton yarns
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An See also: illustration of two patterns of this nature is shown in the figure
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The floats of the warp and the weft are mostly in three; indeed the patterns are made from a See also: base weave which is composed entirely of floats of this number
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It will be seen that both designs are formed of what may be termed concentric figures—alternately black and See also: white
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Pattern B differs from pattern A only in that more of these concentric figures are used for the See also: complete figure
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If pattern B, which shows only one unit, were extended, the effect would be similar to A, except for the See also: size of the unit
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In A there are four complete See also: units, and hence the pattern appears more striking
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Again, the repeating of B would cause the four corner pieces to join and to See also: form a diamond similar to the one in the centre
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The two diamonds in B would then alternate diagonally to See also: left and right
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See also: Special names are given to certain kinds of diapers, e.g
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" See also: bird's-See also: eye," " See also: pheasant's-eye "; these terms indicate, to a certain extent, the size of the complete diamond in the cloth—the smaller kind taking the name " bird's-eye." The size of the pattern on paper has little connexion with the size of the pattern in the See also: cloth, for it is clearly the number of threads and picks per inch which determine the size of the pattern in the cloth from any given design
.
Although A is larger than what is usually termed the " bird's-eye " pattern, it is evident that it may be made to appear as such, provided that the cloth is See also: fine enough
.
These designs, although adapted mostly for cloths such as nursery-diapers, for pinafores, &c., are sometimes used in the production of towels and table-cloths
.
In the figure, the first pick in A is identical with the first pick in B, and the See also: part C shows how each interweaves with the twenty-four threads
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