_ Jah. 14,` 1947. l R, KRASBER'G I _ 2.414,153 WINDOW LOCKING DEVICE . Filed March 1, v194,4 .Mv h yá ì ~ INVENTOR. ¿Máí?ä/’wáélj d „ 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'.