US1922298A - Window lock for limiting the opening distance of window sashes - Google Patents

Description

J. JONES Aug. 15, 1933,

WINDOW LOOK FOR LIMITING THE OPENING DISTANCE OF WINDOW SASHES Filed June 23, 1931 Patented Aug. 15, 1933 Q I r 1,922,29

WINDOW LOOK FOR LIMITING THE OPEN- mo DISTANCE or WINDOW sasnns Jasper Jones, St. Louis, Mo., assignor of onethird to MarvinJones and one-third to Henry Jones, both of St. Louis, Mo. 7 I

Application June 23, 1931. Serial No. 546,307

Claims. (Cl. 292-342) This invention relates to improvements in a window lock for limiting the opening distance of vertically slidable window sashes and has for its primaryobject to provide a window lock 1 5 for a pair ofslidable sashes to be used in addition to the standard type of windowlock for lockingthe sashes in closed position, the addi- 'tional lock being carried by one of the sashes and adaptedto permit the sashes to be opened,

only to a limited distance or degree.

Another object of the invention is in providing a two part lock for slidable window sashes in the form of a socket base secured to one of mountedin respective slots ,3 of the base, and as each tongue 4 is provided with a pair, of oppositely disposed projections 9, the lower projec tion 9 of each tongue 4 will engage under the material of the base at the lower. end of re-. 60

spective-slots 3. g I V In preparing this improved window lock for use and, mounting it for cooperation with the slidable sashes of a window, either the right or left hand sash rail 6 may be selected for the securing of the base A. Screws 10. are then passed through the openings 5 of. the base A and engage in the selected sash rail 6 for securing 40 pocket 1 adjacent its lowerend and for profor cooperation with the tongues 4 of which the sashes, and a cooperable. removable wedge stop for engagement with the other sash, the wedgestop being removable for the purpose of permitting full sliding movement of the sashes in their respective guides of the window frame, when the lock is not in use.

Other and further. objects will appear in the specification and be specifically pointed out in the appended claims, reference being had to the accompanying drawing, exemplifying the invention, and in which:--'

i Figure 1 is a fragmentary vertical section taken through the intermediate portion of a window showing the invention secured to the upper sash. I

Figure 2 is an enlarged perspective view of the detached parts of this improved two part window lock. 1 I

Figure 3, is anenlarged fragmentary vertical section taken through thewindow lock and portions of the upper and lower sashes. In the accompanying drawing A designates the base and B the cooperable wedge member of this improved two part window lock, the base A being made in one piecelof relatively light material. and being formed with a socket or the base A in vertical position, the base then being ready for the reception and securing of the wedge member B thereto and is adapted to be permanently carried by the upper sash, and

in this position (that is without the wedge member B being secured thereto) the upper sash 7 and lower sash 11 can be moved with respect to one another in the guideways of the window frame, without interference by the base A.

This improved window look as stated in the objects of the invention, is adapted to permit 5* the sashes to be opened only to a limited degree with respect to one another. The present invention therefore does not take the place of the usual lock for securing the sashes in closed position as is shown by the lock 12 in Fig. 1 35* which comprises a turnable fastener 13 carried .by the upper cross rail 14 of the lower window sash 11 and a keeper 15 carried by the lower cross rail 16 of the upper window sash 7.

In mounting the base A of this improved lock to the upper sash '7, it is preferable to locate the same a limited distance upwardly from the lower cross rail 16 of the upper sash as it is one of the purposes of the invention to provide a window lock for preventing the sashes being opened more than a limited degree, and such width of the opening permitted by the sashes should not of course be SllffiClGl'l'G to permit the entry of an intruder. It is therefore preferable to mount the base on the upper sash in a location so as to provide about inches of sash opening.

When the wedge member 13 is mounted to the base A in secured position on the upper sash, the lower sash 11 is permitted to be held in open viding access to the socket, an opening 2 is. formed thereabove.

The base A is also provided with a pair of flspaced vertical slots 3 adjacent its upper end there are a pair formed on the wedge member B. The baseA is also provided with openings 5 adjacent each end for the reception of securing .means such as screws for securing the base to one of the side rails 6 of an upper window sash 7.

The wedge member B is adapted to be cooperably mounted to the base A, the lower or pointed end 8 of said wedge member adapted to be mounted in the opening 2 for seating posi- 55 'tion in the socket 1 and the tongues 4 each being position as shown in dotted lines in Fig. 1 and in full lines in Fig. 3 in which the upper cross rail 14 of'the lower sash is in abutment with the tapered face of the wedge member B, the wedge member therefore limiting and stopping the lower sash from being further elevated. In the event however that the lower sash is attempted to be forced upwardly from the open position shown in Figs. 1 and 3, and the frictional force of the cross rail 14 against the wedge member 13, forces the wedge member B to slide upwardly on the base A, the upper projection 9 of respective tongues 4 will of a consequence be forced into engagement with the material of the base at the upper ends of the slots?) of the base, the tongues 4 and the upper projections 9 thereof therefore preventing dislodgement of the Wedge member B from the base A.

From the above description it is therefore seen that when the wedgemember B is secured to the base A, the tapered or wedging portion thereof is overextending the path of sliding travel of the lower sash and therefore the wedge member B not only locks the lower sash against further upward sliding movement but also the upper sash against lower sliding movement.

This improved window lock can also be used as an auxiliary lock to the regular lock for fastening the sashes against being opened as in the event of the regular lock being left unfastened or forced open by an attempt made by an intruder, the limiting window lock comprised of the parts A and B will serve the purpose of preventing the sashes being opened far enough to prevent entry.

What I claim is:-

1. A Window lock for a pair of slidable sashes comprising a socket base secured to one of the sashes; and a wedge having its pointed endremovably engaged in the socket of said base and having a portion extending into the sliding path of said other sash, and said wedge having a pair of tongues with opposing catching portions on each tongue for interengaging said base.

2. A window lock for a pair of slidable sashes comprising a socket base having a pair of vertical slots secured to one of the sashes; and a wedge having its pointed end removably engaged in the socket of said base and having a portion extending into the sliding path of said other sash, and said wedge having a pair of tongues and each tongue having a pair of opposing projections for interengaging said base for preventing displacement of said wedge from said base by abutment of said last mentioned sash therewith.

3. A Window lock comprising an apertured base having a socket adjacent its lower end; and a wedge having a locking tongue and a pair of opposing projections on the tongue, said wedge adapted to have its pointed end secured in the socket of said base and the opposing projections of the tongue engaged in said aperture.

4. A window lock comprising an apertured base having a socket at its lower end; and a wedge having a pair of tongues each having opposing projections; said wedge adapted to be removably secured to said base by having its pointed end engaged in the socket and the projections of the tongues adapted to be interlocked in the apertures of said base.

'5. A window locking wedge comprising a material sheet bent to form an approximate U- shaped channel member having a pointed end, and a tongue extending from the edge of each side wall of the channel member in alinement therewith each having a pair of oppositely disposed projections.

' JASPER JONES.

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