US2325500A

US2325500A - Framed screen

Info

Publication number: US2325500A
Application number: US440591A
Authority: US
Inventors: Henry C Fosberg
Original assignee: WATSON Mfg CO Inc
Current assignee: WATSON Mfg CO Inc
Priority date: 1942-04-27
Filing date: 1942-04-27
Publication date: 1943-07-27
Anticipated expiration: 1960-07-27

Description

July 27, 1943. QFOSBERG 4 2,325,500

FRAMED SCREEN Filed April 27, 1942 FIE-5 FIE-5 FIG-7 Patented July 27, 1943 UNITED ST TES. PATEN ICE *1 Y I 1. 2,325,500 :FRAMED SCREEN Henry CtFosberg, Jamestown, N. assignor to Watson Manufacturing Company, IncL, Jamestown, N; 1., a corporation of New York-1 Application April 27, 1942, Serial o.'44-6,591 Y '9 Claims. (01. 160-9383) This invention relates to, improvements in framed screens and more particularlyto struc tures for mountingwire screen fabric in such frames.

'In one form-the invention screen fabric; in a suitable therefor in the frame, .7

a It is common practice in the manufacture of screensof the type to which the present invention is related, to mount. the edges of screen fabric-in a channel thatvopens'on one face of the frame. The edgebf .the screen fabric bears against/onew side edge ofv the channel,'projecting thereinto and being anchored by. a rod or other member that is snapped or driven into .wedging engagement with the channel walls. The screen fabricis required to be anchored under sufficient tension to be taut andheld against bulging -or sagging. I

.This means of anchoring the screen fabric in a frame is suitable except Where unusual screen, tension is required or in the 7 use of special screen fabric. With special screen fabric such,

channel provided for example, as the so called Venetian blind type,

it has been found that conventional anchoring means'will not function satisfactorily. In this type of "screen fabric, thin, flat strips are arranged horizontally, being spacedly connected by fine; vertically disposed; interwoven, wire strands. The vertical strands are of considerably greater spacing than are the horizontally disposed strips. The' verticalv edges of such screen fabric genis directed, torthe V provision of means for securing the edges of wire junction with the accompanying drawing; and in which ;=Fi gure lis a fragmentary. front elevational view of a mounted screen in which is embodied one form of screen anchoring means V Figure 2 is an enlarged fragmentary horizontal sectional view taken substantially on the line 22 ofFigure l, and shows a more or less conventional method of anchoring an edge of the screen fabric to a frame rail; l

Figure 3 is an enlarged fragmentary vertical sectional view taken substantially on the line 33 of Figure 1 and shows a structure by which to anchor an edge of screen fabric without bend- I Referenceisnow had to the drawing wherein the numeral-10' is employed to generally desig I mate a screen embodying one form. of the inerally consist of cutends of. the thin, flat strips,

and in many instances'these strips may be anchored .to 'theframe'in the usual manner. The horizontal edges of this screen fabric, however, cannot readily beso anchored, since such edges consist of the widely spaced wire strands.

The present invention, therefore, is 'directedfto, I and has for one'of its objects, the provision of means for anchoring screen fabricedges under vention'; In thepresent disclosure the irameof this screenis'comprised of horizontal andver tical rail members ,H and I2, thesemembers being identical in structure and consisting of -tu- .bular portions l3' havinga channel [4 formed by an end wall of the tubular portion and a flange l6; Itlisifoundconvenient to form the rail'from sheet material, substantially as shown,

and join the meeting edges byflan overlapping circumstances where conventional anchoring means is inadequate.

Another object of the invention is to provide 1 means for mounting screen fabric inia'frame without bending or folding the secured edges;

Other objects and advantages of the invention will be more fully understood from a consideration'of the following specification, taken inlconflange .I'l, this'fian'ge also serving to.;provideja restrictionto the open side of the channel. 1 I

It is contemplated to mc-untscreen fabric I8.

vertical edge of the screen fabric l8 consists of cut or free ends of the strips l9 and in many instances it is found both convenient and suitable to secure the vertical edge ofscreen fabric of this type to a frame railina more or less con-. ventional manner. Thatis, byprojectingthe fragmentary view taken substanfree ends of the strip is into the channel it of the rail l2 and then inserting a rod or U-shaped member 22.

' into each interstice of the screen fabric.

tinguished from the conventional anchoring of g The member 22 is so proportioned as to be snappedinto and held in place by engagement with flangell of the channel side wall.

When themember 22 isin place, the. ends of the strips is are flattened and secured against the channel side wall,

With'screen fabric of'this type t is desirable to provide a different means for anchoring the horizontal edges, since these edges are formed, byv

one of the strips It with only the twisted wire strands 2i holding it against displacement. To i secure the horizontal edge of the screen fabric 5 5 there is provided an anchoring .member 23, one

form of which includes wallsz ip 25, and 2?, 5

Wall 25 may include an outwardly projecting rib 23 or its equivalent which, when the member 23 is inserted into the channel M, servesto' spring-latch said member'by engagement of the rib with'an edge of flange l'i. Wall 2% may terminate in a flange 29 and wall 2? in a flange 3 it Flange at is formed with angularly disposedserrations. fingers, or teeth 32. installation of the screen'iabric, is disposed substantially as shown in Figure 4.

To secure the top and bottom edges of the scrjeenfabric-i B, such edges are projected into'the tween flanges 29 and 3!, and with the addition of fingers or teeth 32 the screen fabric edge is 'Well anchored. It is to be kept in mind'that all screen fabriomust be mounted in the 'frame under considerable tension-'to prevent sagging or bulging" during handling or use. a In the present type this necessitates stretchhigthe-screen fabric at least s'f 'forevery foot' oi'height of screen. To produce this tautnesslwith' a screen in which the fabric-has greater strength in one direction than in another, requires'anchoring means that does not fracture or bend the weakerstrands oi the'fabric; As may be clearly understood from the drawing, 'the interwoven strands 2! are not so distorted when they areclam ped between flanges 29 and El as to beweakened to the: point of breakage and, furthermore, since the strip lit,

with which the fingers or teethiii. engage, 'remains joined to the bodyof the fabric by strands that have not been disturbed whatsoever in the a clamping or anchoring operation, there is no like- .lihood or the iabr ic'pulling out irorn the'topand bottom frame rails. I :1

drawing the serrations,

In Figure. 6. of the fingers driteeth Z-SZ are, shown asfformed on flange '29 of the member .23 .rather than on flange 3!.

spacing to accordwith the weaveQOf conventional screen fabric 34, one tooth or finger 3-3 projecting the edge of screen'fabricas shown in Figure 2, it will'be noted that ccnventional'scre en fabric can be-secured, through-the use ofv anchoring means of the-invention, to better advantage by reason :of

Flange 3i, before quired for application to the channels of various screen frames.

ihese variations or modifications, together with others, obvious to those skilled in the art, are therefore contemplated insofar as'they are within the spirit and scope of ';'the invention asdefined in the annexed claims.

Having thus set forthmy invention what I claim as new and for which I desire protection by Letters Patent is:

l. A structure for anchoring wire screen to a frame element comprising a walled member securable to said element, a pair of walls of said member providing a recess into which an edge portion of said screen projects, said walls being .movable into close proximity to clamp said edge engagement witha cross wire of said screen.

'2. A structure for anchoring wire screen to a frame element comprising a walled member securable to said element, certain of the walls of said memberbeing initially spaced apart to provide a recess into which an edge portion of said screenfprojects; .saidwallsbeing movable into close proximity to engage and clamp said edge portion and extending in the direction of said screen, and means on one of said Walls projecting through interstices of said screen and overlappingthe edge of the other of said walls.

3'. A structure for anchoring wire screen to a frame element comprising a tubular member,

ibstantially parallel flanges at the meeting or seam edges of said member, an edge portion of 7 said screen being positioned between said flanges,

and angular projections on one of said flanges projecting into interstices of said screen and engaging .a common cross wire of said screen.

' edge portion of saidscreen projects, saidwalls being movable into close; proximity "with each other-.toengage said'screen edge portion, and projections on one of said walls extending into the interstices of said screen to engage one of said-flat strips.

5. A mructure for anchoring screen to. a frame element, the screen having parallel fiat strips secured in spaced relationship by transversely disposed wire strands, said structure comprising a walled member securable to said element, a pair of walls of said member being spaced to provide a recess, an edgeportion of said screen projecting into said recess and being engaged and clamped by said walls, and projections on one of said walls extending through interstices of said screen and overlappin the other of said walls, said projections having hook-like engagement with one of said fiat'st'rips. H

6. A'structu're for anchoring screen to a frame element, the screen having parallel fiat strips secured in spaced relationship by transversely disposed wire strands, said structure comprising a walled member securable to said element, a pair of walls of said member being initially disposed to provide a recess, an unbent edge portion of said screen projecting into said recess and being engaged and clamped by, said walls, the flat strips being somewhat distorted by the clamping action of said walls, angular projections on one of said walls extending through interstice of said screen beyond said walls, said projections having hooklike engagement with a flat strip adjacent those engaged by said walls.

7. A structure for anchoring Wire screen to an open channel frame element comprising a tubular member, flanges at the meeting or seam projections to extend into the interstices of said screen.

8. A structure for anchoring wire screen to a frame comprising a walled element associated with said frame, said element including a pair of initially spaced apart walls providing a recess into which an edge portion of said screen projects, oifset means on at least one of the walls of said element, said walls being relatively movable into close proximity to clamp said edge portion therebetween and cause said means to interengage said screen.

9. A structure for anchoring wire screen to a frame comprising associated wall elements initially spaced apart to provide a recess into which an edge portion of said screen projects, ofiset means on at least one of said spaced apart wall elements, said elements being relatively movable into close proximity to engage and clamp an edge portion of said screen therebetween and cause said means to extend into the interstices of said screen.

HENRY C. FOSBERG.