US1435982A - Fly screen - Google Patents

Description

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F. S. RUSSELL.

FLY SCREEN. APPLlcATloN FILED MAY 2o,`921.

Patented Nov. 2l, 1922.

1 f m rvr lid JULI". J'Lu" JHL -JLIK l Patented Nov., 2l, i922.

FRANK S. RUSSELL, OF CHCAGO, ILLINOIS.

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Application filed May 20, 1921. Serial No. lllll.

'T0 allee hom 'it may concern z.Be lit known that. l, FRANK S. RUSSELL, a

, Citizen ofthe llnited States, residing at Chicago, in the' county of. Cook and IState of lllinoishave invented certain new and use- V*ful* Improvements ,in Fly .'Screens, of which the following is a description.

My invention relates to improvements in fiyscrzeens, said screens. being `so I.designed that the fly may have, an easy exit therefrom from the inner side of the screen to the outside, l.said exit being so formed and directed that the fly willv not enter through the screen 'from the outside.

It is well known that if a pair of parallel sheets are vertically arranged so Ato overlap and spaced from each other to provide upwardly and outwardly directed openings therebetween, a fly on the iunerside of the screen will travel upwardly thereon and outwardly between the spaced sheets, but a ily on the outside will not descend through said spaced sheets, as the tendency of the ly is to travel upwardly through openings, and not downwardly therethrough.

The invention has among its further objects the production of a device of the kind described that is simple, convenient, durable, economical, reliable, eflicient and satisfactory for use wherever found applicable.

Many other objects and advantages of the construction herein shown and described will be obvious to those skilled in the art from the disclosure herein given.

To this end my invention consists in the novel construction, arrangement and combination of parts herein shown and described, and more particularly pointed out in the claims.

ln the drawings, wherein like reference characters indicate like or corresponding parts;

Figure l is a front elevation of my screen in position on a suitable frame;

Figure 2 is a side elevation of the same; and

Figure 3 is` a top plan view thereof.

In the drawings wherein I have illustra-ted a preferred embodiment of my invention, l designates a suitable frame member of a screen adapted to cover a window opening, door, or the like, said screen comprising a plurality of substantially vertically arranged, parallel, overlapped sheets 3 of any suitable material, preferably foraininous or reticulated, the upper ends of the sheets being designated as l and their lower ,ends as 5.

At one or both ends of each of the sheets 3 are provided a series othorizontally spaced ribs, lugs, or projections 6 6', these ribs or projections being integral with said sheets. Said projections may be formed by pressing or punchingthe sheets at these points to strike up said projections thereon. As shown, these ribs are vertical on the sheets,

`but this is not essential, as said ribs may be horizontal thereby facilitating the rolling up or ceiling ofthe sheets in the process of their manufacture. TWhen both the upper and lower edges of each of the sheets are struck up, the projections l(3f-6 are oppositely directed as shown.

rlhe sheets are assembled in place on the frame by tacking the lower ends 5 to the frame, or by otherwise suitably securing them thereto so as to be vertically arranged thereon, said sheets having their upper and lower edges overlapping, as shown in Figure 2. llhus the screen is composed of a series of vertically arranged, overlapping sheets spaced apart at the upper edges thereof so that the fly or other insect on the inner side of the frame 7 will crawl up the screen and out through the upwardly and outwardly spaced opening S. A fly will not enter the screen from the outside because it is adverse to crawling downwardly through the openings.

lt has been found that if such a screen is applied over a window opening or door and the room darkened, the flies in said room, being attracted toward the brightly lighted outside, will crawl through said openings to the outside and rid the room of flies.

Having thus described my invention it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence l do not wish to be understood as limiting myself to the .exact form, arrangement, construction and combination of parts herein shown and described or uses mentioned.

1What l claim as new and desire to secure by Letters Patent is:

l. ln a device of the kind described and in combination, a series of substantially vertically arranged overlapping sheets, and projecting` means integral with the lower edge of each of said sheets and adapted to bear against the exterior overlapping sheet and space it therefrom, forming upwardly and outwardly extending openings therebetween.

2. In a device of the kind described and in combination, a series of substantially vertically arranged overlapping sheets, and a series of horizontally spaced projecting means integral with the lower edge of each of said Asheets and adapted to bear against the exterior overlapping sheet and space it therefrom, forming upwardly and outwardly extending openings therebetween.

3. In a device of the kind described and in combination, a series of screens comprising substantially vertically arranged sheets having the upper edges ot said sheets exteriorly overlapping the lower edges of the adjacent sheets, and integral projections formed on saidlower edges and adapted to bear against the upper part of said adj acent sheets to space said sheets apart thereat and provideV upwardly and outwardly eX- tending recesses therebetween.

4. In a fly screen, a frame, and a series of sheets thereon, said sheets having their upper and lower edges overlapping, the lower edges of said sheets having outwardly ex- .on and adapted to bear on the adjacent interior overlapped sheets whereby upwardly and outwardly extending recesses are formed between adjacent sheets.

. y In testimony whereof, I have hereuntov signed my name in the presence of two subscribing witnesses.

FRANK S. RUSSELL, l/Vitnesses IoHN W. HILL, BERTHA HARTMANN.

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