US2436277A - Protective screen - Google Patents

Description

Feb.17,.1948. 'L.E,W,LLETT' 2,436,277

PROTECTIVE SCREEN Filed May 4, 1945 INVENTOR.

LEO/v f. WILLTT Patented Feb. 17, 1948 berlin Company'of America, Detroit, Mich, a corporation of Michigan 'Application May' i, 1945;Serial No. 591,983

'5 Claims. (01. 160-391) invention relates "suchfasare used not only Efor 'the purposes and advantagesof the ordinary'fiy or insect screen,

butalso serve as a personal safeguard. They may 'be use'djfo'r example, onpo'rches or in apartment houses to protect children, in hospitalsor other "institutions tojprote'ct patients temporarily de '-liriu's*oieven the more mild-mental cases, or in any other -'-place where substantial protection is -i ies ired'at 'relative'ly'low cost. H

The inx'zention has for its object to provide a :sirn'ple screen idr-the-purposes stated, which can beIr'nadeand sold at "relatively low'cost, which is 'c'a'pableof manuiaotureb'y relatively simple opfermions, which requires only 'hich yet is strong'and not likely to be injured in =service"and 'has'a pleasing appearance with no su gestion of "restraint.

Further objects of the invention in part are obvious'and in part will appear more in detail hereinafter.

In the drawings, which represent one suitable embodiment of the invention,

Fig. 1 is "an elevation from the inside of the 'buil'din'g,'part's being broken out and in section;

Fig. 2 is afdetailsiectionalelevation, on a larger sical'efon the line 22, Fig. 1, the wirepanel 'ari'deertain holding clips being shown somewhat "exa'gger'atedffor elearness of illustration; and

"Fig.3 is a "Fig. 1, and in dotted lines showing the screen 'panelfrarne'swung outto open position.

The screen shown i'n'the drawings for purposes of illustration is a complete self-containedunit which maybe completely fabricated, assembled and'finished at the factory'and then delivered on :thej'ob ready for installation either in .a new building during'erection, or in a window of an old building. The scren may be applied with "either of 'it's 'fac'e's presente'd'inwardly and either inside or outside of the window sash, depending upon a variety of factors, such as whether the window frar'nes are wood or metal, the sashes slide or swing and if the latter, either inwardly or ou wardly, whether 'w-indowwashers will work from the inside or outside, and so on. For convenience, andh'ot in any sense of limitation, it is here as- 's'u'r'r'led'that'l ig. 1 illustrates that facewhich is .pr' efse'r'rted to theinside of the building.

The screen includes a strong sturdy frame which may be secured either permanently or removably in the window frame in any desired manner and in which is mounted a screen panel I!) here made of reasonably heavy wire mesh, with openings small enough to keep out insects and a few parts, and

sectional plan view on the line 3-3,

-' to protective screens,

which rnay house any to lock or -release the swihging 't'urn'flange zli, joine to r with wirel'rna'de 'of any suitable. strong material. "Stainless steel niayibe used, abut'any steel or high tensile strength is" satisfactory. Thewire should b'edf-gau'geor diameterrlarge enough so that .it

is almost impossible-to cut or penetrateiit, even with a knife, screw driver 'or other tools, *1 or 'by the impact of a heavy obj'ectfsuchas a *chairfi as is usual: in protection or safety screens for "this purpose.

' The frame includes a'statidnar membe'r 1' hand a movable "member :[2 t'conne'ctd byeuitabl'e hinges 13. Both -ar'e'shown of open rectangular form, although other special shapes may-he einploye'd. The two members "together, when the screen is in closed position, I enclose a cavity "M desirable conventional lock-- ing r'nechanism .(notshown) capable of actuatioh frame memberby operation i of a key inserted into the keyhole 15. "Stationary fr'ame member ll consists of four -members (top, bottom and'sides) of like cross sec.-

tion mitered -and welded-'together'at the corne s.

Thisse'ctlon includes a-plaill metal body wan-1e bent several times along one edge to form an outer wall l1 a from wan 'IB and an inwardly extending edgeflange [9. At one, two more points in the-ehan nelfthus formed-maybe welded solid 'met'al blocks 20 to which the hinge leaves may be attached. The other edgeof'the sectionis bent inwardly at an angle and then returned upon itself to form a firiished bead edge We onsetting the screen panemnwardly from this race of the frame, as will be apparent from the drawmg. r

'The inovable'irarnehiember is likewise made oi -fou'r'lilie pieces mitered aiidwelded together at the corners; "The duteredge of each section is bent laterally tofform'a cross 'flah gc 2|, while the 'mner edge is-bent inwardly atfan angle to form an inclined wanz'z and 'thnback to form a re- 7 he inclined wall along a smoothly finished e" go 24 spaced slightly rrom the corresponding finishedfedge oi the stationary frame member to provide a peripheral 's'ldt through-which the-'screen panel extends. I

The return flange 23 serves as the support 'dr mounting means for the screen panel, the "four edge portions of whichare bent 'aroundthe edge and backinto parallelism with the panel itself, as shown, Before this bendingoperation is performed small pieces of the "screen panel are cut out at the corners of the sheet to do away with fullness at these points. The actual bending operation is best performed by a special bending tool or machine because this place by small screws ing, replacement or .clined beadededge -ber which therefore serves as an abutment to -.-assist in preventing the screen panel edge from screen panel that members, said members ing operation produces a permanent set in the intervals to said flange for the purpose, the bendmetal wires so that the effectis much thesame as though the wire panel were in fact an imperforate metal sheet permanently interlocked with the mounting flange 23. At least, theusual strains applied to the panel flange of the panel and pull it loose. However, if desirechmore permanent securement may be obtained by applyingyover the 'folded edge of the screen panel, at intervals of say every six inches or so, around the frame, holding clips 24 of U-shape in cross section held in or bolts 25, although these are frequently not necessaly and may be omitted. Whensuch clips aroused, the wire of the Wire mesh panel need not be quite so strong or resistant to tension or shock, but in any event always should be heavy and strong enough, and of proper material, to effectively resist penetration by knives or other tools or by the shock of impact of heavy objects.

As shown in Fig. 3, the screen may be unlocked and opened at any time, the movable member swinging out to the position shown in dotted lines. In this position all parts are exposed for cleanrepair. When the screen is closed, as in full lines Fig. 3, all panel holding parts are concealed and out of reach of the patient. Also, the inner edges of the holding clips 24 (if they are used), lie just outside of the inof the stationary frame membeing pulled out. Indeed, the adjacent body wall iii of the stationary frame lies so close to the of itself it assists in preventing unfolding or opening of the folded panel edge by force applied to the panel,

Other advantages of the invention will be apparent to those skilled in the art.

What I claim is:

l. A protection screen of the character described, comprising a metal frame having a cendo not straighten out the tral. opening surrounded by screen supporting members, said members providing an inner chamber having a narrow slot opening toward the cenand a flange extending into said embracing the edge of said flange, the folded edge of said panel resisting tension applied to the panel and being self-sustaining in its position embracing the frame flange.

2. A protection screen of the character described, comprising a metal frame having a central opening surrounded by screen supporting providing an inner chamscribed, comprising an 4 ber having a narrow slot opening toward the center of the frame and a flange extending into said chamber from said slot, a wire screen panel closing the frame opening and at its edges extending into said chamber alongside of said flange and having its edge portions folded around and embracing the edge of said flange, the folded edge of said panel resisting tension applied to the panel and is being self-sustaining in its position embracing the frame flange, and U-shaped clips attached at and embracing it and the fold of wire mesh bent around it.

3; A protection screen of the character deopen metal frame having stationary and movable members hinged together and relatively movable between open and closed positions, said members each including a body wall and an inner finished edge portion, means spacing the body walls apart when the frame is closed, thereby providing an inner chamber between them, the finished edge of the movable member having a flange lying in a plane parallel to its body wall, and a wire mesh edge of said flange. 7

4. A protection screen of the character described, comprising an open metal frame having member having a flange lying in a plane parallel to its body wall, and a. wire mesh panel covering the frame opening and having it edge portions permanently folded around and embracing the edge of said flange, said flange and the folded edge of the panel being enclosed within said chamber.

5. A protection screen of'the character described, comprising an open metal frame having stationary and movable members hinged together LEON E. WILLETT.

REFERENCES CITED The following references are of file of this patent:

UNITED STATES PATENTS record in the Mar. 24, 1936

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