SECURITY WINDOW

FENETRE DE SURETE

English Abstract

ABSTRACT
A security window having bars extending between one set of
parallel sash members. Apertured plates extend between the other set of
parallel sash members and the bars pass through the apertures in the
plates. A frame of U-shaped channels is attached to three sides of the
window opening and slidably receives the security window. An open
channel member attached to the fourth side of the window opening permits
the security window to slide therethrough and has a slot cooperating
with a bar to lock the security window in place.

Claims

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE PROPERTY OR
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A security barrier adapted to be secured across an opening
comprising: first parallel sash members having bars extending
therebetween and received in apertures in the sash members, second
parallel sash members having apertured plates extending therebetween and
received in slots in the second sash members, the bars passing through
the corresponding apertures in the plates, means securing adjacent sash
members at each corner to form a rigid intrusion barrier.
2. A security barrier as defined in claim 1 wherein said
barrier is adapted to be secured in a window opening.
3. A security window assembly including the security barrier
as defined in claim 2 and further comprising a frame of U-shaped
channels attached to three sides of the window opening and adapted for
slidable reception of the security barrier, an open channel member
attached to the fourth side of the window opening and dimensioned so
that the security barrier can elide therethrough, and locking means
whereby said security barrier is locked in place.
4. A security barrier as defined in claim 1 in which the
first parallel sash members form part of a sliding door and the second
parallel sash members have slidable means cooperating with upper and
lower tracks of the door.
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Description

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This invention relates to security windows of the type forming
an intrusion barrier. The invention may also be applied to doorway
openings of the type receiving patio doors.
As is known the attachment of grilles to windows and door
openings foFms an effective intrusion barrier. It i~ important that the
grille should be capable of rapid removable to permit occupants to
evacuate the building through the opening in the case of emergency, such
as fire. Equally important the grille should not be easily removable by
an intruder on the outside of the building.
~he present invention relates to a compact and economical form
of a security window which can be locked on the inside so as to be
secure ~rom tampering by intruders and yet which can be rapidly removed
by occupants on the inside.
Specifically, the invention relates to a security barrier
adapted to be secured at the inside of an opening. The security barrier
includes first parallel sash members having bars e~tending therebetween
and received in apertures in the sash members and second parallel sa~h
members having apertured plates e~tending therebetween and received in
slo~s in the sash membars. The bars pass through the corresponding
apertures in the plates. Brackets secure adjacent sash mzmbers at each
corner to form a riBid intrusion barrier.
In a security window assembly the invention further comprises
a frame of U-shaped channels attached to three sides of the ~indow
opening and adapted for slidable reception of the security window. .~n
open channel member is attached to the fourth gide of the window opening
and dimensioned 90 that the~security window can glide therethrough.
Suitable means are pro~ided to lock the security window in place.
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A preferred embodiment of the invention T~ill now be descrioed
in conjunction with the accompanying drawings, in Nhich:
Figure 1 is a plan view of a security window in accordance
with the invention;
Figures la and lb are a side view and a bottom view,
respectively, of the security windoN of Figure l;
Figures 2 and ~ are detailed views of portions of the security
~ ~indow of ~igure l;
: Figure ~ is a sketch showing how the security window is
mounted to a frame;
Figure 5 is a side view of the frame adapted to receive the
security window; and
Figures 5a and 5b are a side view and bottom view,
respectively of the frame of Figure 1.
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~escription of the Preferred Embodiment
~ igure 1 shows a security window consisting of a sash 10 with
the side sash members 11 having a series of iron bars 12 extending
between them. The remaining upper and lower sash members 13 have an
array of apertured flat iron plates 14 ez-tending between them with the
steel bars 12 passing through the apertures 15 in plates 14. ~igure 2a
is a detailed view showing how bars 12 are received in apertures in sash
members 11 and pass through the apertures 15 in plates 14. Figure 2b is
a detailed view showing how flat plates 14 are received in corresponding
slots in lower sash member 12. After assembly of the sash and
components it is fastened rigidly by means of corner brackets 16 sho~m
in Figure 1.
lo attach the security window to a window opening a frame 40
is provided as shown in Figure 4. Frame 40 consists of three U-shaped
channel sections 51 attached to a wall around three sides of the window
opening, shown in more detail in Figure 5. ~he fourth side of the
opening is provided with an open channel member 52, through which the
security window can be 31id into position. It may then be locked in
position by mean~ of a locking slot formed in channel member 52
receiving a locking bar e~tending therethrough and secured by a padlock
or other suitable locking device. I~ desired, the locking slot can be
formed in the opposite channel member protected by a bo~ and receiving a
hook formed on the safety window to which the lock can be fa3tened.
Alternative locking arrangements can be used. For e~ample,
one side of a channel section 51 can be pivoted to swing open and
receive the security window and thereafter be locked in place.
Alte~atively, the oham~el seot~ ons 51 oan be =ade 91lehtl~ oversi~ed
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for the security window which is held in place by a wedge member. ~he
wedge member is secured against unauthorized displacement by locking it
to the end channel member. If the security window is to be placed as
; close as possible to the normal windoT:r then a bar with toothed
projections can be provided along the top of the window and the .security
window top edge placed under the toothed projections. The bottom edge
of the security window is then locked to the window frame oy
conventional locks.
~he grille formed by the bars and plates in Figure 1 can be
covered by plastic tubes of corresponding shape for a more pleasing
decorative effect. Rather than using separate sash members as shown in
Figure 1, the sash can be divided vertically into two narrow halves each
formed of steel by a molding process and the grille inserted before the
two halves are joined. In this process the covering may be formed of
steel as part of the molding process.
~he security window shown in Figure 1 can also function as a
; door or other type of security barrier. If it i3 to be used as a patio
door, for example, then upper and lower sash members 13 are provided
with wheels or other slidable members to be received in appropriate
tracks. ~he patio door can be secured by a key operated hook lock.
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