Mounting Prism Plates and Tiles by the use of Beaded Strips.
Year: 1897

page_text: Date of Application, 13th July, 1897-Accepted, 28th Aug., 1897
Mounting Prism Plates and Tiles by the use of Beaded Strips.
I, JOHN MEIGOS EWEN, of No. 1129 The Rookery Chicago, County of Cook,
State of Illinois, United States of America, Mechanical Engineer, do hereby
declare the nature of my invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
My invention relates to mounting prism tiles. It is, as will be evident, appli-
cable also to mounting of any sort of window lights or tile sections into plates;
but I have particularly intended it for application to the objects of mounting
prism lights into prism plates for windows. It is illustrated in the accompanying
diawings, wherein
Figure 1 is a plan of a prism plate composed of ten prism lights.
Figure 2 is a cross-section through two of such lights, enlarged, on the line 2-2.
Figure 3 is a cross-section in the opposite direction on the line 3-3.
Figure 4 is an enlarged detail of the crossing or junction of the warps; and
Figure 5 is a detail of a modification.
Figure 6 is a detail of a modification.
The figures are not to be taken as being drawn to & scale or showing the parts in
their proper proportions.
Like parts are indicated by the same letters in all the figures.
A A are the members of the surrounding frame; B B, the prism lights having
each a series of prisms CC. D 1) are the warps or ribbon-like strips which extend
from one side of the frame to the opposite side, and together with the ties E E
which span the spaces between them or the warp 1) passing in the opposite direc-
tion, constitute the net within the meshes of which the prism lights are secured.
The ties and warps are substantially the same in cross-section, but where warps
are used to the exclusion of ties, as illustrated in Figure 4, the warps are oppositely
netched or halved, as at F F, so as to come together in the manner indicated.
Each warp and each tie has an enlarged head or bead G along one edge; and if
they are formed as indicated in Figure 5, and this bead is composed of metal turned
over so as to be hollow, then a strengthening wire J may be inserted within this
bead and securely fastened at its extremities to the opposite frame pieces.
I do not here make any attempt to describe minutely the manner in which these
several parts are made or the manner in which they may be most conveniently put
together, as any skilled mechanic will readily understand what is the best thing
to be done under each particular set of circumstances as they arise. The warps
may be set in the frame, being secured in any desired manner at their ends, with
the bead G projecting beyond the plane side of the prism lights, and thus serving as
a sort of shoulder to hold them in position. The ties are then placed in position
between the prism lights, their beads projecting on the same prism side of
manner. When
the prism lights and forming a shoulder in the same
these several parts are firmly secured together, it is evident that all of the
prism lights will be secured within the net so as to form a prism plate of the
OJ7

page_text: desired size. If the ties are not used, then the warps should be notched as indi-
cated and transverse warps notched should be employed, whereby the result
indicated in Figure 4 is secured. If the strengthening wires are employed,
they may pass through the frame pieces and be turned over and secured at the
outer edge as indicated. When the parts have all been put into position, or during
the process of assembling them, the plate may be made water-tight or air-tight by
any of the well known methods, as for example, by the use of cement, or the electro-
glazing process.
In thus mounting prism lights, if the prisms extend as indicated and as they
should to the edge of the body of the light, the bead cannot be used on the warp
which runs transversely to the prism, for as shown in Figure 3 the space between
the prisms will not permit. But this bead can be used on the transverse ties or
warps as indicated in Figure 2, and hence unis method of mounting is peculiarly
applicable to prism lights. The bead need not of course be continuous, and can be
broken up into sections; and indeed it is only perhaps essential that the bead section
should occur at the crossing or intersection of the warps or the warp and tie.
I prefer of course to make the warps and ties of thin inetal, so that
they are practically ribbons; but they might be made heavy and stiff
enough to form when put together a sort of grid, rather than the
lighter construction which I have described as a net. In the latter
case, if the device were to be used where not exposed to wind and
water, it might be unnecessary to in any manner further treat the product for the
purpose of making it water or wind-tight.
Of course, as previously suggested, this method and these appliances for
mounting may be employed in connection with any sort of tile or prism sections,
and I use the term tile sections broadly, so as to include not only prism lights, as
shown, and prism tile, but also all other kinds of sections for which they are
applicable.
I have shown the strips of the net as running at right angles to each other, but
obviously this need not always be true, and will denend upon the form of the prism
lights or sections; for example in the case of prism lights of hexagon shape, the
warps would be zigzag in shape.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. A prism plate comprising a series of prism lights each having a receiving
surface on one side and a prism surface on the other, and a supporting net or frame
composed of strips beaded on one edge, the beads on one set of strips being placed
on the receiving side of the prism lights at an angle to the prisms, and the beads
on the other set of strips placed on the prism side of the sections parallel to such
prisms.
2. A plate comprising a series of substantially flat sections combined with r
supporting net or frame consisting of strins beaded on one edge, the strips running
in one direction having the beads on one side of the sections, and the strips running
across the first-mentioned strips having their bea 3 on the opposite sides of said
sections, and the whole secured together substantially as shown and described.
Dated this 13th day of Jul 1807
For the Applicant
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.