Window Prism Awnings adapted to Throw the Light within the Apartment and at Either Side of the Opening.
Year: 1897

page_text: Window Prism Awnings adapted to Throw the Light within the
Apartment and at Either Side of the Opening.
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 performed, to
be particularly described and ascertained in and by the following statement:-
My invention relates to prismatic tile canopies and the like, and has for its
object to provide a new and improved canopy, of which the following is a
description, reference being had to the accompanying drawings, wherein
Figure 1 is a horizontal section through an apartment provided with one form
of my improved canopy.
Figure 2 is an enlarged view of the canopy shown in Figure 1.
Figure 3 is a horizontal section through that apartment showing a modified
form of my canopy.
Figure 4 is a perspective view of a building showing the canopy in position.
Like letters refer to like parts throughout the several figures.
My present invention is applicable to devices for lighting apartments and
the like wherein prism tiles or plates are used, and where such prism tiles or
plates instead of forming part of the window, are made to project outwardly
therefrom.
In Figures 1 and 2 I have shown a simple form of my device, which consists
of the canopy A adapted to project from the window, and which receives the light
and directs it into the apartment. This canopy is composed of a series of prism
lights so formed and positioned as to direct the light toward different parts of
the apartment. The prism lights B, C and throw the light in different
directions, and the rays of light cross each other so as to be directed toward
different parts of the apartment. The direction of the light coming from the
prism lights B, C and D is indicated by the lines B, C and D¹.
In Figures 3 and 4 I have shown a different form for obtaining the same result.
In this construction, the canopy is provided with the additional prism lights E,
which are placed at the side thereof, and which direct the light along the
lines E E. The prism lights in the canopy proper may direct the light straight
forward, as shown, or may be so formed as to throw the light in any given
direction.
The drawings herein shown are more or less diagrammatic, and are simply
used to indicate the purpose of my present invention. I of course do not limit
myself in any manner to these drawings, as the directing of the light to different
parts of the apartment by means of the prism lights placed outside of the window
may be accomplished by numerous constructions.
It will be obvious to any one that various sorts of prism lights can be employed,
that their arrangement can be greatly modified, that the prism plate of a canopy

page_text: may be hinged in whole or in part, and that the canopy may be variously con-
structed so as to accommodate itself to the different conditions under which it
is to be used.
Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:-
1. A canopy for illuminating a dark interior, comprising a frame projecting
from the building opposite the aperture through which the light is to be intro-
duced, with a series of prism lights held in such frame, each prism light provided
with a series of parallel prisms systemmatically arranged thereon to produce an
increased illuminating effect, said prism lights arranged in groups with the
prisms of one group tilted with reference to the prisms of another group, so that
the light received upon one group is thrown through the aperture in one direction
while the light received upon the other group is thrown through the aperture
across the path of the light from the first group.
2. A canopy for illuminating a dark interior, comprising a frame projecting
from the building opposite the aperture through which the light is to be intro-
duced, with a series of prism lights held in such frame, each prism light provided
with a series of parallel prisms systemmatically arranged thereon to produce an
increased illuminating effect, said prism lights arranged in at least three groups
with the prisms of one group tilted with reference to the prisms of another group,
so that the light received upon one group' is thrown through the aperture in one
direction while the light received upon the other group is thrown through the
aperture across the path of the light from the first group, and a third group with
its prisms set so as to throw the light directly in through the aperture.
Dated this 15th day of July 1897.
For the Applicant,
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.