Improvements applicable to Windows.
Year: 1895

page_text: Date of Application, 30th Jan., 1895
Complete Specification Left, 29th Oct., 1895-Accepted, 30th Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements applicable to Windows.
I, EDWARD FREDERICK ROBERTSON, of 8, Park Circus Place, in the County
of Glasgow, North Britain, Engineer, do hereby declare the nature of this
invention to be as follows, that is to say :-
My said invention has for its object to apply in connection with windows
improved automatic apparatus, which, when a window is opened will admit air in
a diffused form without draughts, and will exclude smoke and dust.
In carrying out my invention, according to one modification in the case of an
upper window sash, I fix to the outside edge of the top of the sash the bottom of a
piece of suitable woven fabric of sufficient permeability for the purpose, and I
attach the top of the woven fabric to a roller to which a volute or other suitable
spring is applied. The spring causes the woven fabric to be wound on the roller
when the sash is closed and in its highest position, and when the sash is lowered it
draws down the woven fabric so that it forms a screen extending across the space
which would otherwise be open. In applying the screen to an existing window the
roller may be arranged in a metal or partly metal casing projecting outwards from
the top of the window frame to which it is secured by means of end plates or
flanges extending inwards and fixed by screws in slightly rebated parts at the tops
of the side frames. The woven fabric passes from the roller over a rod placed
almost close to the top piece of the window frame, and descends thence to its
attachment to the sash. In the case of newly constructed windows the roller with
its casing or cover may be arranged in any way that may be most convenient,
either to the outside as hereinbefore described, or to the inside, or directly above
the sash.
Any suitable perforated or permeable material may be used for the screen,
such as wire gauze, or finely perforated leather or sheet metal, instead of woven
fabric.
Similar screening apparatus may be applied to the bottom of a lower window
sash if desired.
In some cases the permeable woven fabric or other screening material may be
stretched on a frame arranged to nove down and up with the sash and outside of
the window (when the window is at the back of a house for example) or within a
recess or casing formed above or below the window.
In another arrangement two spring-actuated rollers covered with rubber or
other frictional material are arranged to draw up the woven fabric or screening
material into a box. Or, without rollers the screening material may be arranged
so as to close up in zig-zag folds one end being attached to the window frame and
the other end to the sash.
The invention is applicable to skylights, and, generally, to vertical, inclined, or
horizontal windows having sliding sashes.
Dated this Twenty-ninth day of January 1895.
EDMUND HUNT,
Applicant's Agent.

page_text: I, EDWARD FREDERICK ROBERTSON, of 8, Park Circus Place, in the County
of Glasgow, North Britain, Engineer, 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, that is to say :—
My said invention has for its object to apply in connection with windows
improved automatic apparatus, which when a window is opened will admit air in a
diffused form without draughts, and will exclude smoke and dust.
In carrying out my invention, according to one modification in the case of an
upper window sash, I fix to the outside edge of the top of the sash the bottom of a
piece of suitable woven fabric of sufficient permeability for the purpose, and I
attach the top of the woven fabric to a roller to which a volute or other suitable
spring is applied. The spring causes the woven fabric to be wound on the roller
when the sash is closed and in its highest position, and when the sash is lowered it
draws down the woven fabric so that it forms a screen extending across the space
which would otherwise be open.
Similar screening apparatus may be applied to the bottom of a lower window
sash if desired.
In some cases the permeable woven fabric or other screening material may be
stretched on a frame arranged to move down and up with the sash and outside of
the window (when the window is at the back of a house for example) or within a
recess or casing formed above or below the window. The frame with the woven
fabric may also be fixed if desired.
In another arrangement two spring-actuated rollers covered with rubber or
other frictional material are arranged to draw up the woven fabric or screening
material into a box. Or without rollers the screening material may be arranged
so as to close up in zig-zag folds one end being attached to the window frame and
the other end to the sash.
And in order that my said invention and the manner of performing the same may
be properly understood I hereunto append a sheet of explanatory drawings to be
hereinafter referred to, and showing one modification of my improvements applicable
to windows.
Figures, 1, and 2, are sectional elevations, as at right angles to each other, of
one modification of my improvements as applied to an ordinary window.
Figure, 3, is a sectional plan of some details.
Figures, 4, and 5, are respectively a partial side elevation, and a transverse
vertical section of the fabric roller near one end and drawn to a larger scale,
Figures, 6, and 7, being similar views near the other end.
Figures, 8, and 9, are enlarged elevations, as at right angles to each other, of an
end plate hereinafter described, Figure, 10, being an elevation of a similar
detail.
In these drawings the same reference letters are used to mark the same or like
parts wherever they are repeated.
In carrying out my invention according to the modification shown in the
drawings, in the case of an upper window sash, I fix to the outside edge of the top
of the sash, A, the bottom of a piece of suitable woven fabric, B, of sufficient
permeability for the purpose, and I attach the top of the woven fabric by means of
a plate, E, to a roller, C, to which a volute or other spring, D, is applied. The
spring, D, causes the woven fabric, B, to be wound on the roller, C, when the
sash, A, is closed and in its highest position, and when the sash is lowered it draws

page_text: down the woven fabric so that it forms a screen, extending across the space which
would otherwise be open. In applying the screen to an existing window such as
shown in the drawings, the roller, C, is carried in a metal or partly metal frame
or casing, consisting of two end plates, G, and a transverse piece, H, which is
slightly curved across its breadth, is jointed to the end plates at the points, J, and
is provided with a small bolt, F, at each end to lock it to the end plates. The end
plates, G, extend outwards from the top of the window frame, K, to which they
are secured by screws, in slightly rebated parts at the tops of the side
frames. The roller, C, is carried at one end on a stud, M, which turns in a bearing
in the end plate, G, while at the other end it is carried on a loose spindle, N, square
in cross section and fitting into a square hole in the other end plate. A slot, P, is
formed in the end plate, G, holding the spindle, N, to allow the spindle to be
inserted (which is done with the transverse piece, H, turned down as indicated by
dotted lines in Figure, 2) and a projection, Q, formed on the transverse piece holds
the spindle firmly when the transverse piece is turned up into place. The spindle, N,
has the volute spring, D, fixed to it inside the roller, C, which is hollow. The
woven fabric, B, guided by vertical plates or equivalents, V, on the window
frame, K, passes from the roller, C, over a rod, R, close to the top piece of the
window frame and descends thence to its attachment to the sash, A. At the point
of its attachment to the sash, A, the woven fabric, B, has fixed to it a transverse
part, S, which may be of wood or metal or partly of both, and which is fixed by
locking devices, T, to the sash. A catch, W, is provided to prevent the spring, D,
from winding the fabric, B, on the roller, C, when any of the parts of the apparatus
are disengaged for examination or repair. Stops (not shown) are provided to
limit the travel of the sash, A. In the case of newly constructed windows the
roller, C, with its casing or cover may be arranged in any way that may be most
convenient, either to the outside as hereinbefore described, or to the inside or
directly above the sash, A.
Any suitable perforated or permeable material may be used for the screen
such as wire gauze or finely perforated leather or sheet metal, instead of woven
fabric.
The invention is applicable to skylights, and, generally to vertical inclined or
horizontal windows having sliding or other sashes.
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. The construction, arrangement, and combination of parts constituting the
improvements applicable to windows substantially as and for the purposes herein-
before described.
2. Improvements applicable to windows comprising a piece of permeable material
fixed to the upper sash of a window and wound or partly wound on a roller, the
material being unwound by the opening sash and rewound, as the sash closes,
by the action of a spring or equivalent substantially as and for the purposes
herein before described and as shown in the accompanying drawings.
3. Improvements applicable to windows comprising a piece of permeable material
stretched on a frame arranged to move down and up with the window sash
substantially as and for the purposes here inbefore described.
4. Improvements applicable to windows comprising a piece of permeable material
arranged to be drawn down by the upper sash when being opened, and to be drawn
up into a box, when the sash is being closed, by two spring-actuated rollers covered
with rubber or other equivalent, substantially as and for the purposes hereinbefore
described.
5. Improvements applicable to windows comprising a piece of permeable material
fixed to the window frame and the upper sash, and arranged to close up in zig-zag
folds as the sash is being closed, and to open out as the sash is being opened
substantially as and for the purposes hereinbefore described.

page_text: 6. Improvements applicable to windows comprising a suitable application to the
lower sash of the subject matter of any of the Claims, 2, 3, 4, and 5, substantially
as and for the purposes herein before described.
Dated this T'wont sighth donat
1007
EDMUND HUNT,
Applicant's Agent.