Combined Stained, Ornamental and Prism Windows.
Year: 1897

page_text: Date of Application, 13th July, 1897-Accepted, 4th Sept.,
1897
COMPLETE SPECIFICATION.
Combined Stained, Ornamental and Prism Windows.
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 be per-
formed, to be particularly described and ascertained in and by the following
statement:-
My invention relates to combined prism lights and ornamental glass light,
and has for its object to incorporate in a single sheet or plate a series of sections,
some of which shall be ornamental, as for instance, stained, opalescent or mosaic
glass, while the remainder shall be of prismatic glass. The effect of practically
all kinds of ornamental glass is to obscure the light and reduce the illumination
of the room, whereas, the effect of the prismatic lights is to increase the illumination
of the room. Again, most ornamental glass requires a peculiar arrangement in
connection with it or about it to produce certain desired effects. All this will
be readily understood by an expert in the matter of ornamental glass. I have
shown two arrangements wherein ornamental glass and prismatic glass have
been combined, but of course I do not wish to be understood as indicating all
methods or arrangements or designs which might be devised, nor do I wish to
limit myself to the particular construction shown.
The particular arrangement which is illustrative of my invention is illustrated
in the accompanying drawings, wherein
Figure 1 is an elevation of a window having a central ornamental part with a
prismatic border;
Figure 2 is an elevation of a window or transom having a central elliptical
prismatic part and a surrounding border of combined prism and ornamental light;
Figure 3 is a section on Line 3-3 Figure 1.
Like parts are indicated by the same letter in all the figures.
A is the surrounding sash or frame: B B are prism lights supported in the
frame or grid C, having if desired the ornamental pieces 1) interposed as indicated:
Tis a body of ornamental light of any desired quality and associated therewith
is the ornamental wreath G. These parts may be of sections or one painted
or etched upon the other or be otherwise produced as may be thought proper.
H H are the border sections, which form a sort of trim for the central ornamental
glass and are interposed between it and the prism lights.
In Figure 2, J J are the central prism lights arranged so as to form a sort of
ellipse. K are a series of circular prism lights incorporated in or combined with
the ornamental border work L. Mis an exterior border of the ornamental glass.
The prismatic glass I prefer to mount by the process of electro-glazing, thus
producing a net composed of the warps C and the ties N, which together hold
the prism lights in place. I prefer to unite the several portions of the ornamental
glass in some other manner, as for example, by the ordinary lead bar O. Now
in bringing these two kinds of mounted portions together, it is desirable that
the prism lights should have an extended border to project into the channel on

page_text: the side of the lead bar of the associated lead mounted glass, while at the points
where the two prism lights are joined together, a very narrow margin is possible
in view of the character of the electro-glazing process. The prism lights, however,
cannot well be prepared with margins of different sizes, so that in the present
process, I employ prism lights with very narrow margins and electro-glaze them
together in a piece or section, each edge intended to be thereafter united with the
lead mounted ornamental light, being provided with a projecting metallic rim
or rib, like that indicated at P. This metallic rib is electro-glazed to the prism
light and serves to extend its border, so to speak, and enter the channel of the
lead mounting. Of course this is only one way of mounting or uniting these
several parts, but it is a method which avoids several difficulties.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what I
claim is:-
A combined ornamental and prismatic window glass consisting of ornamental
and stained glass sections and prismatic sections arranged in the same plane and
connected together substantially as shown and specified.
Dated this 13th day of July 1897.
For the Applicant.
W. LLOYD WISE,
46 Lincoln's Inn Fields; London, W.C., Chartered Patent Agent.