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_
Jah. 14,` 1947.
l
R, KRASBER'G
I
_
2.414,153
WINDOW LOCKING DEVICE
. Filed March 1, v194,4
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2,414,153
Patented Jan. 14, 1947
UNITED STATES PATENT OFFICE
2,414,153
WINDOW LOCKING DEVICE
Rudolf Krasberg, Chicago, Ill.
Application March 1, 1944, Serial No. 524,515
(Cl. 292-67)
5 I Claims.
l
The present invention relates to window lock
ing devices and more particularly to a Window
locking device which will permit a window to be
opened a short distance in order to provide ven
tilation and yet prevent the window from being
opened a greater distance by a thief or prowler.
It has been recognized heretofore that itis de
sirable to provide a window locking device which
will permit a window to be opened a certain dis
tance in order to provide ventilation and yet pre 10
vent the window from being opened a greater dis,
tance so as to admit a thief or prowler.
Numer
2
Figure 3 shows the device in its unlocked posi
tion;
Figure 4 is a cross sectional view along the line
4-4 in the direction of the arrows as indicated in
Figure 1;
Figure 5 is a cross sectional view along the line
5-5 in the direction of the arrows as indicated in
Figure 2; and
Figure 6 is a fragmentary detailed view of a
portion of the device.
'
Referring more particularly to Figure 1 there
is shown a window frame I0 having an upper
sash I2 and a lower sash I4. The window repre
ous devices to accomplish this have been devised,
sented by the frame Ill and the sashes I2 and I4
but generally they have been susceptible to being
the more conventional window structure
readily unlocked by the insertion of a stick, rod 15 indicates
where the lower sash I4 is movable and the upper
or wire which can move the locking device to un
sash I2 may be movable or fixed. In such struc
locking position. In accordance with the present
tures the upper sash moves between vertical guide
invention this objectionable feature of many of
strips I6 and I8 and the lower sash moves be
the prior art devices is overcome by providing a
tween the guiding strip I8 and a‘molding strip not
20
window locking device which when in the lock
shown. As is customary the lower portion of
ing position cannot be moved to the unlocking po
the upper sash I2 and the upper portion of the
sition as long as the window sashes are displaced
lower sash I4 when the sashes are in closed posi
tion abut each other at an inclined joint 20. The
as a fraction of an inch. Since the device cannot
upper edge 22 of the joint 2Il‘is spaced 'back a
be restored to unlocking position with the window 25 slight distance from the upright member 24 form
partially opened, even if the window is not opened
ing a portion of the sash I2 so that suñicient space
as far as the maximum limit permitted by the
is provided for the attachment of a locking de
relative to their normal closed position by as little
locking device, the customary tactics of prowlers
vice 26.
familiar with the other devices will be of no avail.
The locking device 2B comprises a base 28 which
30
In accordance with the present invention a sim
is attached to the member 24 by a plurality of
ple device comprising a base and hinged part sup
screws 30. At one end of the base 28 there is
port is provided for attachment on the inside of
hingedly supported a locking member 32 formed
the upper sash adjacent the lower portion thereof.
of a heavy wire or rod in a generally rectangular
A portion of the device is arranged in its position
shape with a forwardly extending curved portion
35
to be engaged by the lower sash and to limit the
34. One side of the rod 32 is arranged for slid
relative movement between the upper and lower
able movement in the hinged portion 36 which is
sash to such an amount as to prevent entrance of
formed at the one side of the base 28. The rec
an individual through the window without break
ing or removing the window pane.
It therefore is an object of the present inven
tion to provide an improved window locking de
vice which is relatively simple to manufacture and
tangular wire or rod framerformed of the rod 32
40 has a width at its upper portion slightly greater
than the width of the base 28 and has a width
at its lower portion slightly less than the width
of the base 28 together with that portion thereof
which is bent upwardly to form an angle member
It is another object of the present invention to 45 38 having one face parallel to the base 28 and
provide an improved window locking device which
extending outwardly away from the base. The
cannot be unlocked as long as the upper and lower
locking member 32 is shown in its lower locking
position in Figure 1 wherein the locking member
sashes of a window are displaced relative to each
use.
other from their normal closed position.
Other and further objects of the present inven
tion subsequently will become apparent by refer
ence to the following description taken in con
nection with the accompanying drawing wherein '
is retained as soon as the upper edge 22 of the
50 joint 20 of the sash I4 moves above the lowermost
extremity of the locking member 32.
The locking member 32 will remain in the posi
tion shown in Figure- 1 until the upper edge of
the lower sash I4 engages the forwardly project
invention to a window with the device embodying 55 ing curve portion 34 of the locking member, and
thereupon further movement of the lower sash
the present invention in its lower locking posi
will cause the locking member 32 to slide in the
tion;
hinged portion 36 so that the narrower lower
Figure 2 shows the device in its upper locking
portion of the locking member 32 will be moved
_position with the lower` sash indicated by dotted
60 into engagement with the angular portion 38 of
Figure 1 shows the application of the present
lines;
3
2,414,153
4
the base 28. If subsequently the window sash
I4 is restored to its original position the lock
ing member 32 will remain in the position shown
Y
extending portion adapted to be engaged by the
lower window sash and to be moved thereby to
an upper locking position to limit relative move
ment between said sashes.
2. A window locking device comprising a base
adaptedv to be secured to the upper window sash
in Figure 2. This is du-e to a frictional engage
ment of the retaining member 4i] provided with
an intermediate portion of the hinged joint 36.
The portion ¿IO is a part of the base 28 and is bent
adjacent the lower sash, a generally rectangular
inwardly so as to engage Withga certain degree
wire locking member hingedly secured to Said
of friction the slidable rod 32.
base so as to permit limited longitudinal move
From Figure 4 it will be seen that when the 10 ment with respectl thereto, said wire locking
device is in its lower locking position, the rod
member having adjacent one end a forwardly
32 at the right hand portion thereof clears the
' extending portion adapted to be engaged by the
base 28 together with the angular portion 38.
lower window sash when one sash is moved rela
When the device is in the position shown in
tive to the other sash, and means forming a raised
Figure 2, the right hand portion of the rod 32 15 edge
portion of said base extending upwardlyand
is in engagement with the angular portion 38 of
outwardly
for engaging said locking member to
the base 28 as may be seen from Figure 5.
prevent hinged movement of said locking mem
If it is desired to open the window a greater
ber when said member is moved longitudinally
distance than that provided for when the device
upward.
is in its locking position, the rod 32 may be moved 20
,
3. A window locking device comprising a rela
downwardly to the lower locking position and
tively small base adapted to be attached to the
then hingedly moved to the position shown in
inside surface of the upper sash of a window
Figure 3 whereupon the upper portion 34 will no
adjacent the lower portion thereof, and a gen
longer be in the path of the upper portion of
erally rectangular locking member hingedly and
the sash I4 and hence either sash may be `mcved
slidably secured to said base at one side thereof,
its maximum distance. Thus in order to open4 25 said
locking member being much longer than said
the window wide the device 26 oiîers no obstruc
base
and being formed of wire rod having a Vfor
tion thus offering no limitation for the degree of
wardly extending portion arranged for engage
ventilation which may be obtained, nor does it
obstruct the ready cleaning of the window panes, 30 ment by the lower sash whenone sash is moved
relative to the other, said locking, member having
While for the purpose of describing the opera
at the side opposite from said hinged side a por-tion of the device, it has been convenient to refer
tion arranged to extend inwardly in a transverse
to the movement of the lower sash I4 as being
manner for locking engagement with said base
up and down, it is to be understood that this is a
relative matter since obviously the device will
operate in a similar manner if the upper sash I2
when said locking member is in its upper locking
position.`
4. A window locking device comprising a base
is moved up and down. It further is to be under
adapted to be attached to the inside surface of
stood- that while the device 26 has been shown as
the upper sash of a window adjacent the lower
comprising a base which supports in hinged and
portion
thereof, a locking member hingedly and
slidable relation al locking `member 32 shown as 40
slidably
secured to said base, said locking mem
being formed of a wire or rod, that this member
ber having a locking position> and an unlocked
might be made of other material or may have
position, said locking member having a forwardly
another configuration. It furthermore will be
extending portion when in locking position ar
appreciated that the same effect may be obtained
ranged for engagement by the lower sash when
withrespect to the relation of the angular por 45
one sash is moved relative to the other, said lock
tion 38 and the right hand portion of the rod 32
ing` member'having a portion arranged for lock
by providing other means which perform the
ing engagement with said base when said lock
same function. It therefore will be appreciated
ing member is in its upper locking position, and
that in order to simplify the illustration and de
frictional> means for restraining a hinged move
scription of the present invention a particular 50 ment
of said locked member.
_
embodiment has been shown, but that the inven
5. A window locking device comprising a base
tion is not to be limited thereto since obviously
having a side edge bent up to form an angle por
such variations may be made therein as are com
tion having one surface parallel to said base,
mensurate with the spirit and scope of the in-`
said base being adapted to be attached to the
vention as defined in the appended claims.
55; inside surface of the upper sash of a window ad
The present invention is hereby claimed as
jacent the lower portion thereof to position said
follows :`
adjacent the lower portion thereof, having a gen
window locking device between said sashes when
said sashes are displaced relative to each other,
e, locking member formed of a single piece of
metal rod having a generally rectangular con
figuration with an upper portion wider than saidV
erally rectangular locking member hingedly se
base and a lower portion narrower than said
1. AV windowl locking device comprising a sub
stantially square` sheet metal base adapted to be
secured to the inside of an upper window sash
cured to said base adjacent one edge so as to
base, said locking member being hingedly and
permitl limited longitudinal movement with re
slidably secured at oney side of said base, said
locking member having a locking position and an
unlocked position, said locking. member when in
spect thereto, the opposite edge of said base being`
formed to extend above the body of said base for
selective engagement, with said locking member,
locking position having a forwardly extending
-said,.«locking member being formed of a single
portion arranged for engagement by the lower
piece of wire rod and having a lower locking posi
sash when one sash ís moved relative to the
tion so arranged that slight displacement of the 70 other, said narrower portion of said locking mem-f
upper and -lower window sashes relative to each
ber` being arranged for locking engagement with
othershifts said locking member to engage the
said angle portion of said base when said locking
opposite edge of said base to vprevent hinged
member is in its` upper locking position.
movementl of said locking- member from locking
position, saidV locking. member-having` a forwardly
RUDOLF KRASBERG'.
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