IMPROVEMENTS IN WINDOW-VENTILATORS
Year: 1884

page_text: I, JONATHAN BADGER, of N° 161. West 29th Street, New York, in the County
of New York, State of New York, one of the United States of America,
Gentleman, do hereby declare the nature of my invention for "IMPROVEMENTS IN
WINDOW-VENTILATORS" and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
This invention consists in a ventilator of certain novel construction, which is
designed to be applied to the upper part of a window for the purpose of deflecting
or throwing upward the incoming current of fresh air produced when, the upper
sash is lowered, at the same time permitting the escape of foul air, the latter, as is
well known, having a tendency to rise and seek an outlet.
The novel construction of my ventilator is hereinafter fully described, and is
illustrated in the accompanying drawings, in which-
Figure 1. represents a vertical cross-section showing it in position within a
window. Fig, 2 is a front view, partly in section.
Similar letters of reference indicate corresponding parts.
The letter A designates a frame of a window containing the usual sashes, B, C,
and also containing a ventilator which embodies my invention. This ventilator
consists of a vertical shield, D, a horizontal ledge Di, attached to one side of the
shield, and end pieces, D2, attached to both the shield and ledge, each of these parts
being preferably made of wood. The longitudinal edge of the ledge D¹, which is
its free edge, is provided with a packing-strip e, of india-rubber or other similar
material. The end pieces, D2, having less height than the shield D, thus
terminating below the top edge of the shield, and in applying the device to a
window the end pieces are secured opposite to the sides of the frame, with their
upper edges abutting against the top of the window-opening, and in such a
position that the packing-strip e is in the vertical line of the inner surface of the
upper sash, B, while the shield D, stands off or away from the frame in an inward
direction, it also projecting above the window-opening, as shown in Fig. 1. whereby
an opening, S, is created between the shield and the frame. If the upper sash, B,
is now lowered a sufficient distance to bring its top bar opposite the ledge D¹, the
packing-strip e impinges against such bar and produces an air-tight joint at that
place, while the current of fresh air flowing in through the vacant space above the
Fash comes in contact with the shield D, and is thereby deflected upward, so that
it enters the apartment in that direction through the opening or passage S, as
"

page_text: indicated by arrow in Fig. 1. It is obvious that the opening S, will also permit
the escape of foul air, if any exists in the apartment, while in either case an
injurious or undesirable draft is avoided. It will be noticed that the lowering of
the upper sash also has the effect of creating au opening between the sashes,,
through which a current of fresh air is admitted, as indicated in Fig. 1.
It may be remarked that the length of the ventilator corresponds to the width
of the window-opening, so that it fits snugly therein, such length being of course
varied according to the differences in the sizes of windows.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is :-
A window-ventilator composed of the shield or deflector D, the ledge D¹ having
its free edge provided with a packing-strip, and the end pieces D³, having a less
height than the shield, the whole being adapted for use substantially as described.
Dated this Fifteenth day of January 1884.