US1213213A - Window-screen. - Google Patents

Description

G. J. KNAACK & C. J. MARQUARDT.

WINDOW SCREEN.

APPLICATION man MAR. 28.1916.

1 ,21 3,21 3. Patented J an. 23, 1917.

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UNITED srarns PATENT orr on.

GUSTAV J. KNAACK AND CHARLES a. manousnnr, or rnrnc sron, WIsCONSf- N.

WIND OW-SCREEN.

Application ai aivr r h 2s, 191

To all whom it may concern.

Be it known that we, GUs'rAv J. K AACK and CH.'-\RLES J .NMARQIUAIRDT, citizens of the United States, residing at Princeton, in the county of Green Lake, State of .lVisconsin, have invented certain new' and useful Improvements in Tindow-Screens; and I do hereby declare .the' following to be a full, clear, and exact description of thevinvention, such as will enable others skilled in the art to which it appertains to makeand use the same. i i

This invention relates to window screens, and particularly to that type commonly called extension screens, which are adapted for insertion in window frames of various widths.

The primary object of the invention is to provide a screen of this type which may be readily extended or contracted, and wherein flies and other insects will be prevented from entering the room through the overlapping portions of the screen fabric.

Y A'further object of the invention is to provide a screen of this character which is of simple and inexpensive construction, which is composed of but few readily assemall so arranged as to prevent breakage or derangement of the screen, and which will prove durable and thoroughly eiiicient in practice.

With these objects in view, together With others which will appear as the description proceeds, the invention resides in the novel combination and arrangement of parts, all as will be described more fnlly'hereinafter, illustrated in the drawings and particularly pointed out in the claims.

reference to the accompanying drawings, wherein:

Figure 1, is a front elevation of a screen embodying our invention, Fig. 2, is a sectional view taken on line 22 of Fig. 1, Fig. 3, is a longitudinal sectional view taken on line 33 of Fig. 1, Fig. 4, is a detail perspective view of one of the connecting bars for the screen frame, and Fig. 5, is a similar view of the connecting strip.

Referring now more particularly to the drawings, 6 indicates the end members or stiles of the screen frames, to the extremities of which are connected the side members 7 the latter extending inwardly from the end stiles in parallel relation. Two of the members or frames thus provided are employed Specification of Letters Patent.

securely held therein.

Patented an. 1917. Serial No. 87,297. v i

in the construction of each screen, the side members of each frame overlapping each other and are slidab ly connected. Each of the side members 7 of one {image is provided with' a longitudinally extending groove, within which a bead or ribeS securedto the adjacent side member of the other frame fits, whereby the said frames may freely slide with'relation to eachother and will be prevented from lateral movement. .The inner edges of each of the side and end members is grooved as shown for the reception of the edges ofthe screen fabric9, the latter being secured within each of theframes by means of nails or tacks. 1

The free extremities of the respective frames are connectedby a strip 10. This strip is formed of a sheet of relativelynarrow metal bent orfolded upon itself as shown, the folded metal being then bent adjacent its lateral edges into substantially ,U-shape. The ends of the strip are inserted in the grooves in the opposite side members, and the screen fabric edge is inserted between the surfaces of the bent metal to be The en s o a h strip may be secured to the side members by tacks or nails 11. The bent portion of each strip extends inwardly slightly beyond the inner faces of the side members to engage and rest upon the wire fabric of-the adjacent screen frame, and by reason of the rounded edges present ipon the bent portions of the strip it will be obvious that sliding movement of the screen fabric from the said strips will bep'ermitte'd without danger of understood that the coextensive with the length of the latter, and engages with the adjacent face of the screen fabric of the opposite frame throughout the width of the latter.

To securely hold the screen fabric of each frame against bulging, and to prevent insects from gaining access to the room between the overlapping sections of the screen fabric, a connecting bar 12 is provided for each screen frame. This bar comprises an elongated metallic member bent upon itself longitudinally as shown to provide rounded corners, the said bar being of a length equal to the distance between the inner edges of the opposite side members 7 of the frames.

connector plate 13 is secured to the 019130: site ends of each connecting bar, and extends the fabric becoming broken or torn by the 1 said strip. It will be The invention willbe best understood by over the outer faces of each of the side members 7. The connector plates may be bent as at 14 inwardly so that the bar will rest snugly against the fabric of the adjacent sliding section. Each of the connecting bars 12 is arranged directly over the strip 10 with which it travels, the said bars and strips being spaced apart a distance sufficient to permit of the free sliding movement of the screen fabric of the opposite frame and it will be seen that the screen fabric of the slidable frames is thus held against bulging to prevent insects passing beyond the screen end and into the room. A clip member 15 is secured to each of the side members 7 of the frames, the said clips extending through elongated slots 16 in the overlapping sides of the adjacent screen section and are connected at their ends to the connector plates 18, the extremities of the said clip members being bent outwardly as shown to secure the said connector plates thereto. It is thus seen that the strips 10 and bars 12 of each section are held firmly in proper position, and the screen frames are free to slide one upon the other.

While we have herein shown and described a particular or prefered embodiment of.the invention, we desire to have it understood that we need not confine ourselves to all the precise details of construction herein set forth by way of illustration, as

modification and variation may be made without departing from the spirit of the invention or exceeding the scope of the claims.

What is claimed is:

1. A window screen comprising two similar frames composed of parallel overlapping side portions each connected at one end by an end member, screen fabric stretched across each of said frames, a strip connecting the free ends of each frame and the adjacent lateral end of said fabric, the said strip of each frame being bent inwardly throughout its length to engage the adjacent surface of the fabric of the opposite frame,

Copies of this patent may be obtained for and a c0nnecting bar connecting said side members of each frame upon the opposite surface of the fabric of the opposite frame to force the said fabric into engagement with its corresponding strip, substantially as described.

2. A window screen comprising two similar frames composed of sliding parallel overlapping side sections each connected at one end by an end member, each side portion being provided with registering elongated slots, screen fabric connecting the ends of each frame and supporting the adjacent edge of the screen fabric, a bar connecting the ends of each of said frames and engaging the fabric of the adjacent frame, clips securing the ends of each bar to its respective frame and passing through the slot in the next adjacent frame side member, substantially as described.

3. A window screen comprising two similar frames composed of parallel overlapping side portions each connected at one endv by an end member, the said side portions and end members being provided with grooves, wire fabric stretched across each frame and engaged at its edges in said grooves, a strip connecting the free ends of each frame, each strip comprising an elongated metallic member arranged at its ends in said grooves and bent longitudinally to provide clamping portions for the reception of the end of said screen fabric, the said strip extending laterally to engage with the fabric of the adjacent frame throughout the width of the latter, and a bar connecting the ends of each frame and engaged throughout its length upon the opposite side of the adjacent frame fabric and over said strip, substantially as described.

In testimony whereof, we affix our signatures, in the presence of two witnesses.

GUSTAV J. KNAACK. CHARLES J. MARQUARDT. Witnesses:

H. E. Mneow, EDWARD Bomvrox.

Washington, D. G.

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