Improvements in Window Frames.
Year: 1893

page_text: Date of Application, 18th Nov., 1893
Complete Specification Left, 9th Aug., 1894-Accepted, 15th Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in Window Frames.
I, HENRY DEFRIES, of 147 Houndsditch, in the City and County of London,
Manufacturer do hereby declare the nature of this invention to be as follows :-
1
This invention relates to improvements in window frames having for object to
provide a frame for the glass in a window whereby the difficulties now attending
reglazing may be avoided, and it is specially applicable to the movable windows of
railway carriage doors. In the construction which I prefer to apply to a movable
window of a railway carriage door, the frame is made of hard wood in the usual
manner. On the inner face of this frame and round the sight a depression or groove
is formed to receive a metallic moulding or bead by means of which the glass is
held in its place. A further depression or groove of a depth corresponding
approximately to the thickness of the glass which it is proposed to use is made
around the inner edge of the frame. Upon the bottom of this second depression or
groove I attach a bed of cork or other suitable material and upon this the glass is
Laid. The metallic bead or moulding is then embedded in its groove and secured
thereto by means of screws or otherwise. The metallic bead or moulding is prefer-
ably made of such a section as will ensure its inner edge pressing upon the glass
when the screws are tightened up.
. In order to accomplish this I form upon the inner and outer edges of the bead
or moulding a flange or rim projecting inwardly, the flange on the outer edge
corresponding in depth to that of the first groove or depression formed in the
window frame; the flange or rim on the inner edge being made of a greater
depth so as to ensure its bearing upon the face of the glass when the bead or
moulding is secured in position by means of the screws. I may make the metallic
moulding in one piece, or I may make it in several pieces and unite the parts.
together.
Dated this Eighteenth day of November 1893.
COMPLETE SPECIFICATION.
Improvements in Window Frames.
I, HENRY DEFRIES of 147 Houndsditch in the City and County of London,
Manufacturer, do hereby declare the nature of this 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 improvements in window frames having for object to
provide a frame for the glass whereby the difficulties now attending reglazing may
be avoided and additional strength of frame obtained and it is specially applicable
to railway carriage windows.
In windows of the ordinary construction in which the glass is secured between
two or more parts of the frame it is necessary to avoid any means of connecting those
parts of the frame which would prevent it from being taken to pieces in the manner
necessary for reglazing.

page_text: .
The framework for instance cannot for this reason be glued together, and
considerable weakness may result to the detriment of the life of the frame.
I avoid this objection and at the same time obtain a means of reglazing which
can be applied by an unskilled person and without the use of putty by adopting the
construction shewn in the accompanying sheet of drawings in its application to a
movable window of a railway carriage door.
In these drawings
Figure 1 is an elevation of a railway carriage door window constructed in
accordance with my invention.
Figure 2 being a longitudinal section thereof.
Figure 3 is a section through the metallic moulding having a projecting inner
bead or rim for securing the glass in position.
Figure 3 is a section through a metallic moulding having the centre web formed
at an inclination.
Figure 4 is a section through an ordinary window frame illustrating the application
of my invention thereto.
The frame A is made of hard wood or other suitable material and is permanently
fixed together in any convenient manner. On the inner face of this frame A and
round the sight a depression or groove B is formed to receive a spring metallic
moulding or bead C between which and the frame A the glass D is held in its place
as explained hereafter. A further depression or groove E of a depth corresponding
approximately to the thickness of the glass D which it is proposed to use, is made
around the inner edge of the frame A. Upon the bottom of this second depression
or groove E 1 attach a bed of cork or other suitable material F and upon this bed
the glass D is laid. The metallic moulding or bead C is then embedded in its
groove B and secured thereto by means of screws G or otherwise. The metallic
bead or moulding is preferably made of such a section as will ensure its 'inner
edge c pressing upon the glass D when the screws G are tightened up. In order to
accomplish this I may form upon the inner and outer edges of the moulding Ca
flange or rim c projecting inwardly, the flange c¹ on the outer edge corresponding in
depth to that of the first groove or depression B formed in the window frame A:
the flange or rim c on the inner edge being made of a greater depth so as to ensure
its bearing upon the face of the glass D with a spring pressure when the bead or
moulding C is secured in position by means of the screws as shown in Figure 2.
Or I may procure the spring pressure upon the edge c which bears on the glass by
giving an inclination to the web of the moulding as shown on Figure 3A. I may
altogether dispense with the groove B in the frame A in which case the spring
moulding C will project above the frame A as shewn on Figure 4. In either case
the bead which rests on the frame may be suppressed, if desired.
The above construction may be applied to windows of any kind and shape and not
merely to the movable windows of railway carriage doors. The moulding C may
be made in one or more pieces either joined or not.
By the use of this invention the strength of the window is materially increased
both by allowing the frame to be permanently joined in one piece, and, where my
mouldings are made or connected in one piece they tie together and stiffen the
frame itself. It also in the case of round cornered frames protects the wood where
a cross grained edge is exposed. Any suitable metal may be used for the moulding
and its precise section may be varied as may be found convenient subject to the inner
bead having sufficient spring to secure pressure on the glass.
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 :-
1. In window frames a metallic moulding for securing the glass having a flange or
web screwed to the frame and an inwardly projecting spring bead or lip arranged so
as to bear on the glass when in position.
2. Window frames in one piece or permanently connected together furnished

page_text: with two grooves or recesses of which one has a depth approximately equal
to the thickness of the glass for the purposes and as described and illustrated on
Figures 1 & 2.
3. In window frames a cork pad on the frame to form a bed for the glass.
4. Window frames in which the glass lies in a recess and is secured in position
by a spring metallic moulding for the purposes and as described and illustrated on
Figures 1 to 4.