Improvements in Ventilators.
Year: 1888

page_text: Improvements in Ventilators.
I JAMES WILSON MCKINNON, residing at Newark, in the County of Essex and
State of New Jersey, in the United States of America, gentleman, 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 consists in a ventilator which is especially applicable to the sashes of
windows. It consists essentially in the combination with a base---such as a window
sash-having transverse openings therein of a hollow movable ventilator placed over
said openings, said ventilator having in its back, openings corresponding to the
openings in the base, and a perforated front all of which is more fully pointed out in
the following specification and claims and illustrated in the accompanying drawings in
which
Fig. 1 represents a sectional front elevation of my improved ventilator as applied
to the sash of a window.
Fig. 2 is a horizonal section in the plane x-x Fig. 1.
Fig. 3 is a section in the same plane showing the ventilator closed.
Fig. 4 is a vertical section in the plane y-y Fig. 2.
Fig. 5 is a similar section in the plane - Fig. 3.
Similar letters indicate corresponding parts.
In the drawings, the letter A designates a base to which the ventilator is
applied.
In the drawings I have shown said base to be the lower sash of a window, but the
ventilator can be applied to a door, a wall, or other part of a structure.
The ventilator B is made hollow or tubular in form and in the flat back thereof are
formed one or more openings 6 which may be round as shown in the drawings or they
may be of rectangular form.
When several openings, as shown in the drawings, are made in the back of the
ventilator they extend in a right line through the length of the same. The ventilator
is closed at both ends and provided with a partially or wholly perforated front c through
which the air entering the openings 6 makes its exit.
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page_text: It can be secured to the sash A by the use of any suitable means which will permit
it to move in the direction of its length.
In the example illustrated in the drawings I show the ends of the ventilator
mounted in sockets, d d secured to the wood-work of the sash A. In the wood-work
of the sash are formed openings a, corresponding in form as well as in number and
distance between them to the openings b in the back of the ventilator. The ventilator
is secured to the sash directly over the openings a by the sockets d d previously
described.
On inspection of Figs. 1, 2, and 3 it will be seen that when the openings in the
back of the ventilator are in line with the openings a in the sash, the air can pass
freely into the ventilator and subsequently through its perforated front into the room
but when the ventilator is shifted in the direction of arrow 1. Fig. 2, until its end
comes into contact with the end of the socket d Figs. 3 and 5 the openings 6 are
closed by the back of the ventilator and the ingress of air is obstructed.
To thoroughly distribute the air throughout the body of the ventilator so that it will
issue from all points thereof and not only at portions directly opposite the openings b
therein the portions e opposite the openings 6 are not perforated but left solid so as to
deflect the air in the direction of the length of the ventilator.
In applying my ventilators to windows I usually place a ventilator directly on the
lower portion of the lower sash and a ventilator (not shown) on the upper portion of
the upper sash. In the lower ventilator the perforations c are arranged to extend over
the upper curving portion, of the front so as to direct the air upward against the
window-panes. In the upper ventilator, the perforations are arranged in the lower
portion of the front. It is obvious that instead of being perforated the front may
be slotted or otherwise cut so as to permit the passage of air therethrough.
By directing a well-distributed current of cold air against the window panes, as
herein described, steaming and frosting of the windows are prevented as such current
counteracts the heat on the inside and thereby prevents condensation.
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 combination with a base having transverse openings, of a movable hollow
ventilator having openings in its back corresponding to the openings in the base, and
a perforated front, substantially as shown and described.
2. The combination with a base transverse openings a, of a movable hollow
ventilator B closed at both ends, said ventilator having openings b in its back and
perforations in its front and the sockets, d d affixed to the base for securing the
ventilator and permitting a movement of the same in the direction of its length,
substantially as shown and described.
3. The combination with a base having transverse openings, of a movable hollow
ventilator having openings b in its back corresponding to the openings in the base and
a front having solid portions opposite the openings b, and perforated portions between
said solid portions substantially as shown and described.
Dated this 18th of September 1888.
BERNHARD DUKES,
226, High Holborn, London, W.C.,
Agent for the Applicant.