An Improved Apparatus for Use with Windows for Excluding Flies. Moths, Mosquitoes, and such like Insects from Rooms.
Year: 1894

page_text: Date of Application, 28th Aug.. 1894-Accepted, 13th Oct., 1894
COMPLETE SPECIFICATION.
An Improved Apparatus for Use with Windows for Excluding Flies.
Moths, Mosquitoes, and such like Insects from Rooms.
I, ALFRED LEON ISAACS, of Albert Street, St. Clair, Dunedin, in the Colony
of New Zealand, Warehouseman, 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 apparatus for excluding insects such as flies from rooms
when the window is open, and has for its objects accomplishing this requirement in
an efficient manner and at the same time allowing the air to pass to and fro through
the apparatus, and thus impede ventilation in as small a degree as possible.
Although the apparatus is not designed to keep burglars from getting through a
window, yet it is one of the objects of my invention so to construct the same as to
make it difficult for them so to enter a room, and should such an attempt be made
the inmates of a bedroom would in nearly every case be aroused.
Further objects are to make the apparatus simple in construction so that it may
be easily operated; have little tendency to require repair; and ornamental in
appearance.
carry these objects of my invention into effect by providing rollers fixed on the
interior side and reaching across the top and bottom of the window, and around
which may be rolled blinds or screens of fine gauze of brass wire or other suitable
material. This said roller is actuated by a spring which has a tendency to roll the
blind upon itself.
The outer ends of the blinds are attached to the sashes of the window, and as
these sashes are raised or lowered the blinds are unrolled at the same time and
occupy the spaces left vacant. The air may thus pass through the blinds, but
their texture is made fine enough to exclude insects,such as hereinbefore mentioned.
Suitable coverings are provided to both rollers as a protection against damage,
and the gauze may be worked into various designs and thus be ornamental.
The blind is made readily detachable from the sashes and may thus be thrown
out of use when desired, as for instance when cleaning the outside of the window
from within.
I am aware that some attempts have been made to effect the objects of my
invention by loose screens, but my apparatus, by being fixed ready for use and
operating with the opening and closing of the sashes, overcomes objections heretofore
experienced.
In order that my invention may be most easily understood I will now proceed to
describe the same in detail and for that purpose shall refer to the accompanying
drawing whereon similar letters and figures refer to corresponding parts throughout
the views.
Fig. 1, is a view, looking from the interior of a room, of a window provided
with my apparatus, the top sash being partly opened and bottom sash slightly opened,
and part of the casings removed.
Fig. 2, is a section of the same on the line A B.
Fig. 3, is an enlarged view of one end of the upper roller, and the actuating spring
and attachments.
Fig. 4, is an end view of the same, and
Fig. 5, is an alternative arrangement of spring and roller, where the spring is
within the roller.
(a) is the roller which is made preferably of wood, and is provided at each end
with a pin or arbor (a').

page_text: The brackets (b) are attached to the frame of the window and receive the pins (a¹).
The coiled spring (c) has its inner end attached to the pin or arbor (a) and its
outer end attached to the frame of the window by the screw (c2). This spring (c)
is made of sufficient strength to roll the blind around the roller without raising or
lowering the sashes.
The blind (d) is made of wire gauze, of brass or mild steel, or of cotton gauze
or net muslin, or I use a wire gauze of large mesh to give the required strength in
combination with a cotton gauze of the necessary fineness.
The gauze may be painted or varnished to preserve it from injury by the weather
and may be decorated with various designs to make it ornamental.
The inner end of this blind (d) is attached to the roller (a) and its outer end
may be securely attached to the sash (e) or be provided with a strip of material (d')
preferably of leather which being punctured with holes (d2) may be attached to
the sashes (e) by the studs (d³). (f& f¹) are the casings supplied to the upper
and lower rollers respectively for the purpose of protecting the blinds from damage
and also to cover the gap (2) above the upper roller, and gap (ƒ³) below the lower
roller.
In Fig. 5 is shewn an alternative form of spring (9) and roller (h). The said
spring (9) is made spiral in form and may extend any required distance within the
hollow roller (h) which is made preferably of tin or zinc plate. The arbor (j) is
rigidly fixed to the window frame by the screws (j') and has attached to it, one
end of the spring (9) by the rivet (g). The other end of this same spring is
attached to the roller (h) by the rivet (¹). The ends (2) of the roller (h) are
soldered within the said roller and form a journal for the same upon the arbor (j).
The manner in which my apparatus is operated will be evident from the drawing
and the above description, where the blind is unrolled and follows the sash when
the window is opened, and is rolled around its roller (a) by the spring (c) when the
window is closed.
I wish it to be understood that I do not confine myself to the exact details
hereinbefore specified as these may be varied in many ways by one skilled in the art
to which it appertains, as for example, the spring (c) may be dispensed with and
the roller (a) operated by a weight and cord.
From the beforegoing description it will be seen that I am able to exclude flies
and such like insects in a simple, cheap, and effective manner by means of an
apparatus which is neat in appearance, easily operated, occupies little space, can
be readily fixed in position by an ordinary workman, and has little tendency to
require repair.
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 an improved apparatus such as described herein, for use with windows, for
excluding flies, moths, mosquitoes, and such like insects from rooms, the combination
with a window and sashes (e) of a blind (d) attached to said sashes and having
roller (a), spring (c) as and for the purposes set forth herein and as illustrated on
the accompanying drawing.
2. In an improved apparatus, such as described herein, for excluding flies, moths,
mosquitoes, and such like insects from rooms, the combination with an ordinary
window and sashes (e) of a blind (d) attached to the said sashes by strip (d') by
the studs (d³) and roller (a) and spring (c), as and for the purposes specified herein
and as indicated on the accompanying drawing.
3. In an improved apparatus, such as described herein, for use with windows, for
excluding flies, moths mosquitoes, and such like insects from rooms, the combination
with an ordinary window and sashes (e) of blinds (d) rollers (a) springs (c) and
casings (f& f), as and for the purposes set forth herein and as illustrated on the
accompanying drawing.
4. An improved apparatus, for use with windows for excluding flies, moths,

page_text: mosquitoes, and such like insects from rooms, constructed, arranged, and operating,
substantially as hereinbefore described and as illustrated on the accompanying
drawing.
Dated this 6th day of July 1894
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.