Improvements in Apparatus for Holding Open Windows in any Desired Position.
Year: 1889

page_text: PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Holding Open Windows in any
Desired Position.
Communicated to me from abroad by FRANZ SOHMIDT, of Zittau, in the Empire
of Germany, Merchant.
I, EDMUND EDWARDS, of the firm of Edwards and Co. Patent Agents and
Engineers of 35 Southampton Buildings, Chancery Lane, in the County of
Middlesex do hereby declare the nature of this invention to be as follows :—
This invention relates to what are known as French windows, hinged on their
vertical edge, and it has for its object novel methods of fastening such windows in
any desired position, more or less open without risk of their being loosened by any
sudden gusts of wind.
On the inner side of the lower sill of the window, a narrow vertical plate is
screwed or otherwise fixed, its upper edge projecting somewhat above the sill and
having any desired number of square notches formed in it. A bracket is fixed at
each end of the plate, projecting inward for a short distance and supporting a round
horizontal bar, upon which slides an eye or hook upon the inner end of a flat bar
which projects out at right angles to the har on which it slides. The outer end of
this sliding bar has a hook projecting downward which can enter and engage with
holes in a flat horizontal strip or plate screwed or otherwise fixed to the lower edge
of the hinged window. The flat sliding bar has near its inner end a notch upon
cach edge, leaving the part between the notches of such width that it can just fit
into the notches in the plate first described which is fixed to the window sill.
If the window be opened to any desired extent, the bar is moved along upon the
rod on which it slides until the hook at its outer end can drop into one of the holes
in the plate fixed to the lower edge of the window, and at the same timo the notched
part of the bar drop into the corresponding notch in the plate upon the sill, and the
window is then held perfectly safely and securely, and without any risk of being
unfastened or loosened by any sudden gust of wind.
Instead of the outer end of the sliding bar having a hook, it may be provided with
a hole fitting upon one or other of a series of pins or studs which are provided
(instead of holes as just described) upon the strip fixed to the lower edge of tho
window. These pins or studs may have heads, and the sliding bar may have a
horizontal hook pivotted to it, so that when the bar has been fitted upon one of the
pins, the hook can be turned under the head of the latter, and thus prevent any
possibility of the bar accidentally coming off the pin.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Holding Open Windows in any
Desired Position.
A communication to me from abroad by FRANZ SCHMIDT, of Zittau, in the Empire
of Germany, Merchant.
1, EDMUND EDWARDS, of the firm of Edwards and Co. Patent Agents and
Engineers, of 35 Southampton Buildings, Chancery Lane, in the County of
Middlesex 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 and accompanying drawing (that is to say):
--
This invention relates to what are known as French windows-hinged on their
D

page_text: vertical edge, and it has for its object novel methods of fastening such windows in
any desired position, more or less opon, without risk of their being loosened by any
sudden gusts of wind.
In the necompanying drawing, which is in illustration of the invention, figure 1. is
a side view, partly in section of a window having the invention applied to it.
Figure 2 is a plan of the same. Figure 3 is a front view of the plate fixed to the
window frame. Figure is a modifiel form of the arrangement shown in figures 1,
2, and 3. Figure 5 is a plan of the samo, and figure 6 a front view of the plate
attached to the window frame for the same.
The same letters of reference indicate the same parts in the several figures.
On the inner side of the lower sill of the window, a narrow vertical plate A is
serewed or otherwise fixed, its upper edge projecting somewhat above the sill and
having any desired number or square notches formed in it. A bracket B is fixed at
each end of the plate A projecting inward for a short distance and supporting a
round horizontal bar Cupon which slides an eye or hook E upon the inuer end of a
flat bar D which projects out at right angles to the bar on which it slides.
The outer end of this sliding lar D) hins a hook H projecting downward which can
enter and engage with holes in a flat horizontal strip or plate screwed or otherwise
fixed to the lower edge of the hinged window. The flat sliding har has near its
inner end a notch F upon each edge, leaving the part between the notches of such
width that it can just fit into the notches G'in the plato A first described which is
fixed to the window sill.
If the window he opened to any desired extent, the bar D is moved along upon
the rod Con which it slides until the hook Hat its outer en can drop into one of
the holes K in the plate J fixed to the loser edge of the window, and at the same
time the noteled part of the bar at drops into the corresponding notch in the
plate A upon the sill, and the window is then held perfectly safely and securely, and
without any risk of being unfastened or loosened by any sudden gust of wind.
Instead of the outer end of the sliding bar 1) having a hook (11, figure 1) it may
be provided (as illustrated in figures 4, 5, and 6) with a hole fitting upon one or
other of a series of pins or studs M which are provided (instead of holes as first
described) upon the strip) fixed to the lower edge of the window. These pins or
studs M may have heads, and the sliding har may have a horizontal hook ( pivotted
to it, so that when the bar has been fitted upon one of the pins, the hook O can b
turned under the head of the latter, and thus prevent any possibility of the har
accidentally coming off the pin. The strip J has bent lugs or ears L by which it is
screwed or otherwise fixed to the window.
Having now particularly described and ascertained the nature of my said
invention and in what manner the sumo is to be performed, I declare that what
I claim is :-
The apparatus for holding windows open in any desired position, consisting of tha
plate A, the notches G, and the coned bar (1, the bar D fitting and sliding upon the
roundbar (and having notches F, F, fitting upon the plate A, and a hook H,
(figures 1 and 2), or a hole with a moveable hook O (figures 4 and 5), in combination
with the strip J fixed to the window by lugs Land having holos K, or studs M, to
receive the hook H or the hole at the end of the bar D, substantially as and for the
purposo described and shewn in the drawing.
EDWARDS & Co.,
35, Southampton Buildings, London, Agents for the Patentee.