to lend themselves to broad architectural treatment, giving the
architect an opportunity to preserve the beauty and simplicity
of the design. It is also a fact that Luxfer Prism plates more
effectively resist wind pressure, and are also much stronger to
resist the action of hail and flying fragments than plate glass.
If subjected to an extraordinary shock at any point, instead of
shattering or destroying the entire plate, the injury may be
confined to one or a few prism lenses which can be easily replaced.
Thus these prism plates are very valuable for building fronts,
and the danger from falling glass is minimized, particularly in
the case of high winds. Once installed, they are as enduring as
the structure itself.
While these prism plates, as elsewhere
explained, vastly increase the interior illumination, they may
be used as a screen to prevent persons within from looking out,
and also to prevent those without from looking in, and thus they
are extremely valuable in cases where these conditions are
desired, as, for example, in workshops where it is desired that
the employes should not be distracted by what passes on the
street without. In buildings, where the view is unpleasant or
disagreeable, its use may provide not only a means of shutting
out unpleasant sights, but a beautiful and interesting substitute;
in the case of schools, where the children are likely to be
distracted by the street sights; in bath rooms; in apartment
houses, where the windows of rooms are placed in close proximity
to each other; in shops where the out look is disagreeable, and
where, nevertheless, it is desirable that the windows should
be highly attractive; in stores where the interiors are finely
decorated, and where the rear windows open on alleys, Luxfer
Prisms maybe introduced filling the entire openings, the design
on the prism harmonizing with the other interior decoration and
reclaiming the rear portion of the store for business purposes.
For instance, in one case, a shoe store, the entire rear is now
used for the sale of ladies' fine shoes, and this portion of
the store is filled with customers who otherwise, owing to the
disagreeable features of the alley as seen through the ordinary
glass, would not frequent this portion of the store. The clerks
and bookkeepers who formerly occupied this portion
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