US2500470A - Window screen - Google Patents

Description

March 14, 1950 us ET AL 2,500,470

WINDOW SCREEN Filed Jan. 15, 1948 INVENTORS ATTORNEYS Patentecl Mar. 14, 1950 WINDOW SCREEN David J. Rust and Jack Caliil, assignors to Application January 13, 1948,

1 Claim.

This invention relates to improvements in frameless window screens.

One object of the invention is to provide a window screen especially useful on metal casement-type windows; the screen being attached, in novel manner, to the fixed frame of such a casement.

Another object of the invention is to provide a frameless window screen which comprises a rectangular section of wire cloth having a top bar and a bottom bar secured to corresponding edges thereof; the top bar being attached to the casement by saddle brackets, and the lower bar being secured in place and the screen tensioned by novel turns which include bar engaging cams.

An additional object of this invention is to provide a window screen, of the type described, which is easy to install, and thereafter quickdetachable, without the use of tools, for cleaning or maintenance.

A further object of the invention is to provide a neat, attractive, inexpensive window screen for easements, and one which will be exceedingly effective for the purpose for which it is designed.

These objects are accomplished by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claim.

In the drawings:

Fig. l is a front elevation of the window screen in place on a casement; one of the bar locking and screw tensioning turns being shown in holding position, while the other is shown in released position.

Fig. 2 is a side elevation showing the screen in place on the casement.

Fig. 3 is a fragmentary sectional elevation showing the cross sectional configuration of one of the bars, and the manner of attachment of the wire cloth thereto.

Fig. 4 is an under side view of one of the turns, detached.

Referring now more particularly to the characters of reference on the drawings, the improved window screen comprises a rectangular section I of wire cloth having a transverse top bar 2 and a transverse bottom bar 3 attached to corresponding edges thereof; said bars 2 and 3 projecting, in symmetrical relation, beyond the side edges of the section I.

Each of the bars 2 and 3 includes a longitudinal foot 4 along one edge, and an outwardly, longitudinally extending offset 5 intermediate its edges. The longitudinal edge portion opposite H. Jensen, San Leandro,

Ry-Lock Company, Inc., San Leandro, Calif., a corporation of California Serial No. 2,077

the foot is bent inwardly, and back toward the offset 5, to form a holding flange 6, and the adjacent portion of the screen extends over the inner face of said flange and thence is frictionally engaged between the same and the adjacent portion of the bar. In this manner the section I of wire cloth is effectively but removably attached, at opposite ends, to the corresponding bars, with the latter extending transversely of said section.

The numeral 7 indicates, generally, a metallic casement which includes, on one side thereof, a fixed rectangular frame 8 having a top flange 9, side flanges Ill, and a bottom flange ll, which flanges define the window opening I2.

The window screen is disposed for use with the wire cloth section I overlying the window opening I2, with the top bar 2 and bottom bar 3 lapping and abutting against the top flange 9 and bottom flange I I, and also projecting across adjacent end portions of the side flanges ll].

A pair of saddle brackets I3 are affixed to the side flanges H) of the frame 8 adjacent the upper portions thereof, but below the top bar 2. Said saddle brackets l3 each include a vertical slot M thrOugh which a screw I5 is threaded into the corresponding flange it, whereby said brackets I3 are initially vertically adjustable to properly position and level the top bar 2.

Each bracket I3 includes an upstanding saddle I6 which engages the lower edge of the top bar 2 in supporting relation at the projecting ends thereof, which lower edge is rounded, as at I1, to matchingly engage in the saddle, which is similarly rounded. The brackets l3 include, at their lower end, an outwardly projecting finger tab I8 which facilitates initial installation and adjustment.

In the above described manner, the window screen is suspended from the top bar 2 in position overlying the window opening I2, and said screen is tensioned, and the bottom bar 3 locked,

in the following manner:

Directly above each of the projecting ends of' the bottom bar 3 the corresponding side flanges 50 are fltted with a turn, indicated generally at I9; each turn l9 including a rotary, eccentric cam 20. The turns are each carried on a flanged bushing B secured to the corresponding side flange IE3 by a screw 2I, and a radial finger '22 projects from each cam 20 in clearance relation to the corresponding side flange l0. Each radial flnger 22 is formed with an outwardly projecting wing 23 for manual engagement.

The turns l9 are set sufficiently close to the bottom bar 3 so that when turned from a released position with the finger 22 and wing 23 projecting upwardly, to a holding position with said parts projecting downwardly, the cam 20 engages the adjacent edge of the bottom bar 3 and urges it downwardly, thus efiectively tensioning the section I of wire cloth. At the same time the fingers 22 of the turns l9 ride over the face of the bottom bar 3' to lock it against outward displacement from the fixed frame 8'. It will thus be recognized that the turns l9 serve. the dual purpose of tensioning the section I of wire cloth, and locking the bottom bar 3 in its normal position of use.

The described window screen is quick-detachaswinging the turns 19 to released position and then lifting the top bar 2 from the saddle brackets I3.

By reason of the particular configuration of the bars 2 and 3 in cross section, the section of wire cloth 1 lies in engagement with the corresponding side flanges ill to assure against the passage therebetween of insects.

From the foregoing description it will be readily seen that there has been produced such a device as substantially fulfills the objects of the invention, as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such DAVID J. RUST. JACK H. JENSEN. REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 551,095 Ramsden Dec. 10, 1895' 2,415,200 Willett Feb. 4, 1947 FOREIGN PATENTS Number Country Date 389,615 Great Britain Mar. 23, 1933

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