An Improved Method of Framing Prism Sections and Tiles for Windows, and the like.
Year: 1897

page_text: Date of Application, 13th July, 1897-Accepted, 11th Sept., 1897
COMPLETE SPECIFICATION.
An Improved Method of Framing Prism Sections and Tiles for
Windows, and the like.
I, JOHN MEIGGS 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
performed, to be particularly described and ascertained in and by the following
statement
be
My invention relates to improvements in mounting tile sections, and particularly
to such improvements as are applicable to mounting prism tiles and' prism
lights.
I have illustrated my invention in connection with the mounting of prism lights
where they are intended to be assembled into prism plates 'for windows. Of
course I have shown but a few methods or constructions whereby my invention
can be utilized, but I do not wish to be limited to the precise things shown, as
I have simply shown these details for the purpose of illustrating broadly the
invention.
Figure 1 is a plan view of a prism light with a metallic border.
Figure 2 is a detail of the border strip extended.
Figure 3 is a cross section through two bordered prism lights where they have
been brought together; and
Figure 4 is a modification of the device of Fig. 1, the overhanging portions of
the metallic border being removed except near the corners.
Figures 5, 6 and 7 are views of prism lights bordered and mounted in various
relations to each other.
Like parts are indicated by the same letters in all the figures.
AA are the prisms on the bodies B B, and thus are formed the prism lights CC.
D is a metallic strip notched at the points E E, which are separated by intervals
equal in length to the edges of the prism light. In the illustration shown,
the notches are so arranged that the two extremities of the border meet at one
corner of the prism light, but of course this meeting point may be at any other
part of the edge of the prism light, as for example at the middle or one side. Moreover,
as indicated above, this border which is shown in Figure 3 as being U-shaped
in cross-section may be cut away as indicated in Figure 4, so that the overhanging
parts of such strip are found only at the corners. In this event obviously, the
prisms could be substantially and perhaps exactly the same length as the prism
light, or in other words could come clear to the edge of the body of the light.
These parts are shown exaggerated in Figure 3, to more clearly illustrate the other
features of the improvement. An intimate contact between the metal border and
the edge of the prism light can be obtained in any desired manner, as for example
by cement or by electrical deposit. In Figure 3 I have shown two such metallic
bordered prism lights brought close together, their edges being as near as may
be possible in actual contact. When the parts are all assembled in this position
so as to make a complete plate of the desired size, the several opposed metallic

page_text: borders may be soldered together or otherwise secured in any of the methods
commonly employed for joining metals, so far as such methods may be applicable
to the present conditions.
The complete product may then be subjected to the electrolytic bath to coat
the metal surfaces or to electrically deposit between the metal and the edges of
1
the prism lights or tile sections.
Of
In handling prism plates as well as other forms of tile sections, they are liable
to considerable injury and often have broken and defective edges and corners.
By having them metal bordered, as herein indicated, soon after they are produced
from the molds or other forming devices, these damages are Fobviated. On the
other hand, by these metal borders the sections may be easily assembled.
course the borders may be of any desired substance and of ang desired thickness
or weight. Moreover, it is easier to mount the prism lights other than usual
forms, and they may be mounted with open spaces between them or with venti-
lating openings, without destroying the strength of the plate or exposing the various
elements of the net which I have commonly employed to unqual and dangerous
strains. When the parts have been properly united, they constitute a net which is
composed of the several borders attached together and each practically integral
with its prism light as distinguished from the warps and tiesassembled by other
methods of mounting. It is obvious that the sections so metal-bordered may be
of any size or shape and may be of varying sizes and shapes Es may be required
to. secure the desired arrangement of the prism lights in the plate and to leave
the desired openings or to accomplish any other result sought for.
I have been describing my invention in connection with the mounting of prism
lights into prism plates, but I do not wish thus to be understood to limit its use,
and as previously stated, in this manner I can mount all kinds of tiles or tile or
glass sections.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
A prism plate comprising a series of prism lights and a supporting net con-
sisting of a series of separate metallic borders one for each prism light, and a
series of connections between such borders whereby they are formed into such net.
T
191
T1 1907
101
1007
For the Applicant,
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.