Ventilators for Windows.
Year: 1890

page_text: Date of Application, 27th June, 1890
Complete Specification Left, 26th Mar., 1891-Accepted, 2nd May, 1891
PROVISIONAL SPECIFICATION.
Ventilators for Windows.
RICHARD LOCKYER HICKES, No. 1 Mitre Court Temple London E.C., of
no occupation or trade, do hereby declare the nature of this invention to be as
follows:-
screws two
I take two pieces of wood of about half an inch in thickness the length being
equal to the breadth of the top sash of the window but allowing sufficient play for
the same to move easily in the sash-frame and of the same width as the thickness
of the sash. I cut two grooves about three sixteenths (13ths.) of an inch deep in
each piece of wood opposite to each other and about a quarter of an inch (in.)
from the outside edges into which I insert two strips of perforated zinc, tin, brass
or wire gauze of the width required usually about five inches forming a sort of box
the sides of which are of perforated zinc or other material as before mentioned
and the top and bottom of wood-these are held together by three or four pieces
of wood the length required to form the depth of the box which are placed inside
the box and attached to the top and bottom by means of nails or
of which are situated about twelve inches from either end-over these and outside
the box I attach a band of thin brass or other metal from half to one inch in
width--the bottom ends of which project about an inch and a half beyond the box
and act as clamps to clasp the box to the top of the window sash and allow the
same to rise and fall with the top sash when it is raised or lowered. The ends of
the wooden top and bottom of the box I notch out so as to allow the same to clear
the sash lines. Through the introduction of perforated zinc or wire gauze I
prevent a draught blowing into the room and exclude dust and blacks from
entering while at the same time an opportunity is afforded for the hot or vitiated
air to freely escape from the room while the open space between the top and
bottom sashes allows an upward current of air to enter the apartment without
causing a draught which can be felt by the occupiers of the room. The ventilator
not being a fixture may be lifted off the sash at a moments notice and is as easily
replaced.
In some very exposed positions I use several thicknesses of zinc or wire gauze
to exclude the draught or may use only one thickness if considered desirable in
protected places and I further in exposed situations place on the top of the
bottom sash-rail a piece of half inch wood the length and width of the said sash-
rail and on the upper side of which wood I attach a piece of perforated zinc,
tin, or wire gauze of sufficient breadth to touch against the glass of the top sash,
and if any sash bars intervene I notch out the zinc or wire-gauze to allow the
same to come in contact with the glass and thus break the force of the upward
rush of air. This I attach to the top of the lower sash-rail by means of a band
of thin brass or other metal of from half to one inch in width in like manner
as the box on the before mentioned top sash rail is attached and previously
described.
COMPLETE SPECIFICATION.
Ventilators for Windows.
RICHARD LOCKYER HICKES, 1 Mitre Court, Temple, Fleet Street, London,
E.C., 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 :—
I take two pieces of wood of about half an inch in thickness the length being

page_text: equal to the top sash of the window, but allowing sufficient play for the same
to move casily in the sash frame, and of sufficient or the same width as the
thickness of the sash. I cut two grooves about three sixteenths of an inch deep
in each piece of wood opposite to each other and about a quarter of an inch from
the outside edges, into which I insert two strips of perforated zine, tin, brass or
wire gauze, of the width required, usually about five inches, forming a sort of box
the sides of which are of perforated zinc or other metal as before mentioned,
and the top and bottom of wood. These are held together by three or four pieces
of wood the length required to form the depth of the box which are placed
inside the box and attached to the top and bottom by means of nails or screws,
two of which are situated about two inches from either end, over these and
outside the box I attach a band of thin brass or other metal of from half to one
inch in width, the bottom ends of which project about an inch and a half beyond
the box, and act as clamps to clasp the box to the top of the window sash and
allow the same to rise and tall with the top sash when it is lowered or raised.
The ends of the wooden top and bottom of the box I notch out so as to allow
the same to clear the sash lines.
The ventilator not being a fixture may be lifted off the sash at a moments
notice and is as easily replaced.
I further place on the top of the bottom sash rail a piece of half inch wood the
length and width of the said sash rail and on the upper side of which wood I
attach a piece of perforated zinc tin or wire gauze of sufficient breadth to touch
against the glass of the top sash, and if any sash bars intervene I notch out the
zinc or wire gauze to allow the same to come in contact with the glass and thus
break the force of the upward rush of air. This may be laid simply upon the
top of the lower sash rail or may be held in its place by bolts or other convenient
method.
I now refer to drawings left with this my final Specification.
Fig. 1. shows the ventilator V attached to the window.
Fig. 2. shows the ventilator detached.
AA is the framework of wood. B B perforated zinc. C. C. metal clamps
which clasp the top rail of window sash.
Fig. 3. is the air (dust) filter.
D. wooden lath. E perforated zinc notched out to fit sash.
Fig. 4. is a section of window sashes with ventilator attached.
The arrows F show the direction taken by the external air passing through
the filter G the vitiated air leaving the room from the top of the window through
the ventilator.
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
1st. The mode of attaching the ventilators to the window sashes so that they
'will move with them.
2nd. The piece of wood and zinc or wire gauze which is placed on the top of
the bottom sash rail and which I call an air (dust) filter.
Dated this the 26th day of March 1891.
R. L. HICKES.