US1077247A - Fly-screen. - Google Patents

Description

N. LEWIS.

FLY SCREEN.

APPLmATIoN FILED Nov. 12. 1910.

0 1,077,247, l Patented oet.28,1913.

.l, Y g 7 COLUMNA PLANOGRAPH CO.,WASHINGTON, Dfc.

UNTE

NELSON Lewis,y orv BOULDER, ootonazoo.V

FLY-SCREEN.

Spec'cation of ILetters iatent.

raeentefioet. 2e, i913.

Application filed November 12, 1916. YSerial No. 592,005?.

' Colorado, have invented n-ew and useful linprovements in Fly-Screens, of which the following is a specification.

This invention relates to window and vdoor screens used for the exclusion of `iies and other insects.

The primary object of the invention is to take advantage of the well known aptitude of such insects when lying upon a vertical surface to crawl upward and to provid-e for an exit from, but no entrance to the room.

Another object'of the invention is to providea frame` for a door or window having one or more panels termed or" reticulated material, the same being inclined from-the bottoni of the door' or window frame toward the upper portion thereof, and wheny more than one ot Saidpanelsare employed a space 1s formed between the saine, the said space not only providing for the escape of air, so as to thoroughly ventilatel the room in which the screen is positioned, but also serving as a means for directing the insect upwardly upon the panel to the exit thereof.A

A still further object of the invention is to provide a window or door screen having a plurality of reticulated panels, the lower insects may readily crawl between the spaces formed between each panel and the pocket of the adjacent panel, but wherein the said pocket serves as a means for preventing the downward crawling of the insect to reenter the room.

With the above and other objects in view, which will appear as the description progresses, the invention resides'in the novel construction and arrangement of parts hereinafter fully described and claimed.

In the accompanying drawing Figurel is a perspective view of a door frame pro videdfwithifthe improved screen.` Fig. 2l is a central" vertic'al sectional view italreii-l on a line with 'Y one ofi' the outlets formed in* the upper bar ofthe trame. Fig.13 isa-similar sectional view" taken on* the line *3e-3 of Figfl.

In' the accompanying drawings the device has been illustratedfas` appliedto the trame of ascreen door, butitpis to be' understood that the showing thereinis-'merely Aillustrative and jI'do notlimitthe application of the peculiar'arrangementof screen panels'to any particularstructure,as the said panels could be used with equal etli'ciencyupon a window screen frame, door or window'openings or the like.

ln'the accompanying drawings the numeral l designates an ordinary screen door' This irame l has itsverticalstiles lprovided with inclined grooves or recesses 2.'

frame.

they grooves` or recesses 2 maybe ottany'desired number andthe said grooves are adapt- -ed for the reception of panels formed of re-` ticulated material, suchas awire meshing 3.' ihe` door frame is provided with a plurality ot o'ppositelyv disposed transversely ar.- ranged: bars'et', the latter `connecting tlief ver' `ticalrstiles of the frame and being adapted to serve as hand holds whereby the doorzmav: ibe` swung upon its hinges as well asl for aii addition-al purpose, which is now to be dcscribed.

The first groove or recess 2 starts from the lower inner face of the frame l and terminates approximately central of the outer bar a as clearly illustrated in the figures of the drawings. When the iirst panel making up the screen is positioned within the oppositely dispos-ed recesses 2, the edges thereof are secured upon the vertical st-iles through the medium of brads or nails 5. The second or succeeding recess 2 is started upon the inner face of the door directly opposite the terminal of the first panel. This groove or recess is extended toward and terminates approximatelycentral of the second bar 4 upon the outer face of the frame 1. The reticulated panel 3 is. positioned within the said grooves or recesses and retained through the medii'im srnrns Panni onirica..

of the elements 5. The lower extremity of positioned a slight distance below the top of the outer bar and the pocket 6 is secured thereto through the medium of suitable springs or other attaching devices.

rI`he panels making up the screen are each constructed in a manner similar to that above described and are also connected with the side stiles of the door by having their edges inserted within the grooves or recesses and retained therein by brads, nails or the like. The upper connecting bar 7 of the door is formed with a pair of recesses or depressions 8, Each of these recesses are preferably arranged centrally of the connecting bar 7 and extend longitudinally a suitable distance beyond their points of connection of the said bar with the stiles of the door. The recesses have their side walls parallel and their faces arranged in an inclination similar to the inclined panels 3. The upper screen section or panel, which is adapted to be retained hy the upper outer bar 4 is arranged directly opposite the top o-f the cross sectional U- shaped pocket 9 fo-rmed in the panels 10 which engage the inclined depressions 8.

With ascreen constructed as above described, the insects upon the interior of a room may crawl upwardly between the panels to find a free exit through the passage formed between the rounded pockets 6 and the top of the next lowest screen. Most all insects have an aptitude for seeking light and fresh air and very few insects are known to crawl downwardly toward a darkened surface. The space between the screen panels aifords a lighted surface as well as an exit of impure air from the room and the said air will serve as a means for forcing the insects upon any of the panels through the exit. The pockets 6 are adapted to serve as retarding elements for such insects as fall upon the screens or attempt to descend downwardly to gain an entrance into the room upon which the door is positioned.

Having thus described the invention, what I claim is,

A screen comprising a frame having vertical stiles, bars attached to the stiles against the inner and outer surfaces thereof and arranged in pairs, the outer members of the pairs of bars being located at higher points along the stiles than the inner members of the pairs of bars, screen panels having their upper edges connected with the inner surfaces of the upper and outer bars and their lower portions connected with the inner surfaces of the next adjacent inner lower bars, the intermediate portions of the panels lying in planes which extend transversely across the stiles from the inner to the outer surfaces thereof and which extend from one set of bars to the next adjacent setof bars, the lower portions of the panels being curved inwardly forming pockets located between the inner surfaces of the members of the pairs of bars.

In testimony whereof I aiiiX my signature in presence of two witnesses.

NELSON LEWIS.

Witnesses IRWIN E. KEELER,

J. A. Merian.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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