US1729348A - Window screen - Google Patents

Description

Sept. 24, 1929. K ONS I 1,729,348

WINDOW SCREEN Filed July 5, 1927 1' /7 .j 4 /lf 1. i;

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M I/24m 1/64 ATTORNEY Patented Sept. 24, 1929 UNITED STATES WILLIAM M. KOONS, OF WICHITA, KANSAS WINDOW SCREEN Application filed July 5,

My invention relates to improvements in window screens. It relates particularly to the type of laterally extensible screens. which are adapted for insertion into a window frame above or below a sash.

My invention is an improvement on the extensible window screen for which on September 16, 1924, I was granted a patent in the United States of America, having Numher 1,508,559.

The invention disclosed in the aforesaid patent comprises a screen carrying frame and an end member pivoted thereto by means of two links, each of which is pivoted to the frame and said end member on vertical axes, whereby the end member is adapted to be swung to and from a closed position at the end and in the vertical plane of the frame.

The arrangement is such that upon the insertion into or removal from the window frame, of the screen, the end member is swung inwardly and the adj acent'end of the frame is swung outwardly, thereby permitting such insertion or withdrawal.

One of the objects of my present invention is the novel means for interlocking the end member with the frame, when the end member is in the closed position, and thus holding the frame and end member from vertical movement with respect to each other, independently of the links, and relieving the latter from strains which have a tendency to loosen the pivot devices connecting the links with the frame and end member.

A further object of my invention is the provision of novel means for limiting the opening movement of the end member to a position which enables the easy engagement of the end member with or its disengagement from the frame. and also to relieve some of the strain upon the pivotal devices when positioning the end member for removal.

A further object of my invention is to provide a construction which is simple, cheap, durable, not liable to get out of order, and which is easily operable.

The novel features of my invention are hereinafter fully described and claimed.

In the accompanying drawing, which illus- 1927. Serial No. 203,287.

trates the vention,

Fig. 1 is a perspective view of my improved window screen shown mounted in operative position in a window frame, which is partly broken away.

Fig. 2 is an enlarged top view of the same, partly broken away, the window frame being shown in horizontal section.

Fig. 8 is a view similar to Fig. 2, the window screen being shown in the contracted position ready for insertion into or removal from the frame.

Fig. 4 is an enlarged section, on the line 44 of Fig. 5.

Fig. 5 is a reduced inside elevation of my improved window screen, partly broken away, the end member being shown in the closed position interlocked with the frame.

6 is an enlarged perspective view of the stop member which interlocks with the end member. a

Fig. 7 is a perspective view of the end member.

Similar reference characters designate H similar parts in the different views.

My improved window screen comprises a frame having a rectangular body 1, the opening through which is covered by netting or screen wire 2.

One end of the frame 1 is adapted for removable insertion between the usual stops 3 at one side of an ordinary window frame 4.

The other end of the frame 1 is beveled inwardly away from the adjacent side of the window frame 4. This beveled end of the frame 1 is adapted to abut against a similarly beveled adjacent side edge 5 of a vertical end member 6, which is hinged to the frame 1 so as to be swung from a position in vertical alignment therewith, from a closed position, shown in Figs. 1, 2 and 5, and in solid lines in Fig. 4, to an open position, shown in Fig. 3 and in dotted lines in Fig. 4.

For hinging the end member 6 to the frame 1, there may be provided an upper horizontal link 7 and a lower horizontal link 8, Fig. 5, which are respectively mounted on the upper and lower ends of the end member 6 to preferred embodiment of my inwhich the links are respectively pivoted on vertical axes by screws 9.

The links 7 and 8 are respectively mounted in recesses 10 provided respectively in the upper and lower edges of the frame 1, the upper sides of the links being preferably in the horizontal planes of the upper and lower edges of the frame 1, Fig. 5.

The links 7 and 8 are respectively slidably pivoted on vertical axes to the upper and lower edges of the frame 1 by screws 11 which extend respectively through slots 12 provided one in each link 7 and 8.

For swinging the end member (3 to and from the closed position, it may have fastened to it the arms of a U shaped handle 13.

The frame 1 at its beveled end is provided with a central portion which projects inwardly beyond the inner side of the body of the frame, and which projects outwardly beyond the beveled end of the body of the frame. This central projecting portion may comprise a block 1 1 fastened to the inner side of the body of the frame 1 and having an oblique arm 15, which may be mounted in an oblique groove 16 extending transversely across the beveled end of the frame 1, Fig. i.

The oblique arm 15 of the stop member 1st enters an oblique recess 16 transversely across the beveled edge of the end member 6, when said end member is swung to the closed position, shown in solid lines in Fig. 1. lVhen the end member is interlocked in the closed position with the body of the frame 1, by means of the stop block or member 14:, the end member and the body 1 are held by said stop member from vertical movement relatively to each other, and the links 7 and 8 are relieved from exerting any prying strain on their pivot-a1 devices 9 and 11, due to the weight of the window sash 17, which rests on the upper link 7 and the upper edge of the body 1, when the parts are in the operative position, shown in Fig. 1.

\Vhen the end member 6 is swung to the open position, shown in Fig. 3 and in dotted lines in Fig. l, it will strike the outer beveled side of the stop member 14 which projects beyond the inner side ofthe body 1, thus limiting the opening movement of the end member, and holding it in proper position for easy insertion between the window stops 18 at the adjacent side of the window frame 4:.

The stop member or block 14 thus effects the double function or duty as a stop for the end member and as a means for interlocking the end member with the body 1 to prevent relative vertical movement between the two.

As additional means for limiting the opening movement of the end member 6, there may be fastened to the inner side of the body 1, two stop blocks 19, which. are respectively adjacent to the upper and lower edges of the body 1 and each of which has an outer beveled side 20 adapted to be struck by the beveled edge 5 of the end member 6.

For releasably fastening the end member 6 in the closed position, there may be provided a button 521, Figs. 1 and 5, which is pivoted to the inner side of the body 1, and which is adapted to be swung to and from a position in which it extends over the inner side of the end member 6.

To insert the window screen into the window frame 4, the end member 6 is swung by means of the handle 18 to the open position, shown-in Fig. 3, and the distant end of the body 1 is inserted between the stops 3. The handle 13 is then pulled inwardly and to the left, as viewed in Fig. 3, upon which the member 6 will enter between the stops 18 and the adjacent end of the body 1 will be drawn inwardly until it alines with the end member 6, as shown in Fig. 2.

In the closing operation, the arm 15 will enter the recess or groove 16' of the end member, to which the arm is pivoted, thereby interlocking the end member 6 and the body 1 so as to hold them from relative vertical movement. The button 21 is then turned to the locking position, shown in Figs. 1 and 5, thereby retaining the parts in their operative positions. The window sash 17 may then be lowered so as to rest upon the upper edge of the body 1.

To remove the window screen from the window frame, the operation just described, is reversed.

By providing the end member 6 and the adj acent end of the body 1 with the beveled meeting surfaces described, and by mounting the end member 6 on vertical axes, the screen may be removed from the frame even when the sash has become stuck therein and can not be raised. This may be effected by removing the screen outwardly from the window frame. The beveled surfaces of the meeting portions of the end member and the body 1 eliminate any open crack between the two.

By having the beveled meeting surfaces of the end member 6 and the body 1 extending inwardly and away from the adjacent side of the frame 4, as shown, the screen may be inserted or removed readily from within the room, while this construction makes it extremely difiicult for an intruder on the outside to remove the screen, when the latter and the window sash 17 are both locked.

I do not limit my invention to the structure shown and described, as modifications, within the scope of the appended claims, may be made without departing from the spirit of my invention.

What I claim is 1. In a window screen, two members comprising anetting carrying frame and an end member hinged thereto so as to be swung to and from a closed position in alinement with said frame, said members having respectively beveled meeting edges, one of which has in it a transverse groove, the other beveled edge having on it a projecting portion, which, in the closed position of said end member, enters said groove and holds said members'from vertical movement relatively to each other.

2. In a window screen, a netting carrying frame, and an end member hinged thereto so as to be swung to and from a closed position in alinement with said frame, said members having respectively beveled meeting edges, the beveled edge of the end member having in it a transverse groove, and the beveled edge of the frame having on it a projecting portion, which, in the closed posi tion of said end member, enters said groove and holds said members from vertical movement relatively to each other.

3. In a window screen, a netting carrying frame, and an end member hinged thereto so as to be swung to and from a closed position in vertical alinement with the frame, said members having respectively beveled meeting edges, the meeting edge of the end member having in it a transverse groove, said frame having a portion projecting from its meeting edge and which fits in said groove when the end member is in the closed position, said frame having a portion projecting from one side in the path of said end member and arranged to engage said end member and limit the opening movement thereof.

4. In a window screen, a netting carrying frame having at one side a projecting portion, and an end member hinged thereto so as to be swung to and from a closed position in vertical alinement with said frame, said frame and said end member having respectively beveled meeting edges, the meeting edge of the end member being engaged by said projecting portion and thus having its opening movement limited thereby.

In testimony whereof I have signed my name to this specification.

WILLIAM M. KOONS.

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