US1932418A - Screen frame - Google Patents

Description

. 24, 1951 2 Sheets-Sheet, l

L. J. MILONE SCREEN FRAME Filed Feb 0d. an, 1933.

Oct., 3i, 1933. L. .1. MlLoNE 1,932,418

SCREEN FRAME I Filed Feb. 24, 1951 2 sheets-sheet, 2

wvewtoz Patented Oct. 31, 1933 UNITED STATES PATENT OFFICE SCREEN FRAME Application February 24, 1931. Serial N0. 517,723

Z Claims. (Cl. 156-14) the product and process set forth in the patentsA to Otto, Reissue No. 16,148 and No. 1,596,507 have been considerably utilized. 'I'his product is a section of aluminum or aluminum alloy extruded to the precise cross-section desired for the frame. A light and very rigid structure is attained by the use of these sections welded or otherwise made into a substantially integral joint at the corners.

The object of the present invention is to provide a frame of this general type which when used for screens will include a screen channel in which the edges of the wire cloth are anchored. 'I'he construction is such, however, that I secure a maximum stiffness and rigidity with the least possible weight of metal and in the cheapest possible manner. Not only is this accomplished, but I provide a cross-section which fits the frame for varied fields of usefulness, as will be hereinafter more fully set forth. I

The invention also includes devices inA which such sections are utilized with the attendant features.

Y Referring to the drawings, which illustrate several forms of the invention,-

Figure 1 is a perspective View, partly in section, of the upper portion of a window ventilator, having at its top a screen constructed mainly of the extruded aluminum sections provided by this invention.

Fig. le is a similar perspective view of a strip utilized at several parts of Fig. 1.

Fig. 2 is a perspective View, partly in section, of a form of rails and Stiles of a slightly modified cross-section.

Fig. 3 is aperspective view of an expansible and contractible window screen constructed of material of the same cross-section as that used in Fig. 1.

Fig. 4 is a similar perspective view, partly in section, and constructed of the material of the two cross-sections illustrated in Figs. l and 2.

Fig. 5 is a. perspective view,lpartly in section,

of a key such as is utilized in the constructions of Figs. 3 and 4.

Referring first to Figs. l and 1a I have in these figures illustrated a window ventilator, comprising metallic side pieces A formed of sheet metal (one of which is shown) a glass or other front plate B, having side frames B', adapted to it between the two side pieces, being held in place by flanges, such as C, and a screen D hinged to. the frame pieces B'.

The screen D is constructed of a frame E and wire netting F, although for the latter may be substituted any desired material.

An important feature of the invention is the construction of the rails and stiles of the screen 70 of metal having a novel cross-section, some modifications of which are shown in the drawings. This metal is usually an extruded aluminum alloy, and if a wire cloth or other similar material is to be used extending across the frame, the cross-section is such as to provide a screen-retaining channel G in which the edges of the screen are located, and in which they are held by a suitable anchor H of any desired construction.

I prefer to so construct the screen-retaining channel that it is undercut on its edge, as shown at I, and preferably also on its opposite side, as shown at J, and I also prefer to construct the anchor as an elastic U-shaped member adapted to pass through the restricted slot formed by undercutting the screen channel and expanding into the undercut portions, as shown". This construction I have found makes a very firm and Asecure connection between the screen and the rails and stiles without the use of undue pressure.

According to the present invention the extruded metal is provided with one or more slots K-L. These slots are preferably two in number, and are also undercut, as shown. The precise location of the slots may be varied, thus in Figure 1 the slot K is arranged so that it opens at what -may be termed the outside of the screen section; that is to say, the side which is opposite the side lying next to the wire cloth. In this gure also the slot L opens downwardly in the same direction as the screen channel.

In Figure 2, however, the slot K opens upwardly in an opposite direction from that of the screen channel, while the slot L is at the outside of the frame, but opposite the opening of the screen channel instead of opposite its closed side, as is the case in the construction shown in Figure 1. To describe the construction in another way, the two modifications are identical except that the screen channel is located in Figure 2 on the opposite side from that in which it is formed in Figure ll. in both inn1 stances there is a channel K or L opening edge wise of the strip and a similar channel one to the top or bottom.

These sections are of great utility. Even with a large screen channel they provide a frame which is very stid and rigid in proportion to its size and weight. For instance, li can provide a screen constructed oi terial having an overall width and depth of approximately iiveI eighths of an inch, which when welded at the corners is amply strong and rigid for frames oi considerable size.

Furthermore, the channels .l and K are eirceedingly useiul for a number of p ,thus in Figure 1 the channel K is utilized to engage and hold a rubber or other nexible strip, such as M, by means of which the hinged door ci the ventilator makes a substantially dust-tight fit with the lower sash il of the window. @o also on the opposite side of the screen door the channel L is utilized fior a similar strip M which closes the opening between the lower iace of the screen and the top of the glass front B.

In Figure 3 I have shown a construction oi adjustable window screen in which there are two sliding frames P and Q, each of which is formed of aluminum of the cross-section shown in Figure l. These two screens may be easily adapted to slide together by the provision or" a length of metal of dumb-bell cross section, such as shown in Fig. 5, at R, each of the edges of the metal entering one of the enlarged portions of the slots L which in Fig. 3 are arranged face to face. This provides a sliding adjustable screen in which the two screen cloths lie adjacent to each other.

In Fig. 4i I have shown a similar construction of sliding adjustable screen in which both cross-sections are used, so that the actual screen cloths are spaced apart. This would ordinarily produce a space for the ingress of insects, etc. between the two screens, but it will be noted that the upright section of the screen Q which is omitted from the drawings will lie alongside of the screen cloth of the screen P all the way from the bottom to the top, thereby preventing ingress of insects or the like.

When used, as shown in Figs. 3 and d, the upper and lower members of the fe may be provided with weather-stripping designed to contact with the frame of the window and the under side of the sash if desired. Such weatherneonata stripping may be of the general character shown at lid in le. The e is true when members of the particular cross-section providedby my invention are utilized to construct orry sliding or hinged window sashes, doors or the like. So also il it is desired to utilize the channels K and L, or either of them, to secure sheets of glass or other material, the latter may be ceniented in the channels or by a slight pressing or roll operation the lips of the channels may be compressed about such sheets.

The screen channel may, of course, be omitted where desired, or may be utilized if suitably famed to engage or anchor other materials the netting shown.

While i have shown and described several iorins oi the invention, it will be understood that l do not wish to be limited thereto, as various changes may be e therein without departing iroin the invention.

what l claim is:

l. section for screens or the like, comprising a strip oi inetal of general rectangular cross sec-- tion, and having in one face thereof a lorigl tudinal channel of considerable cross sectional enslons adapted to receive the edge oi a screen or the lilre, and having at least two .1. f1

nels oi.' considerably smaller cross section lead ing from the faces of the section, said lasted cels having enlarged inner portions and restricted openings to the exterior, all of said channels together forming a large portion of the total cross section of the metal.

2. A section for screens or the like, comprising an extruded metal containing a high proa portion of aluminum, said section being of gena eral rectangular cross section, and being provided on one side with a screen-retaining channel of considerable dimensions adapted to receive not only thescreen fabric but also an anchor for the screen fabric, one side of said section whiclris adapted to face inwardly in a screen being ungrooved, and its companion parallel sur-1 face being provided with a relatively smaller groove having an enlarged interior and a restricted opening, and a second groove similar to said last-named groove arranged in one of the iaces of the screen section, a cross section of the metal being largely occupied by the area of the grooves, and the metallic ll de the grooves being generally'of approtely the e thickness tughout the cross section.

LO J. NE.

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