US2825400A - Combination window and screen - Google Patents

Description

United States Patent COMBINATION WINDGW AND SCREEN Ralph E. Poulsen, Van Nuys, Caif.

Application-February 5, 1954, Serial No. 408,449

lclaim. (Cl. 160-311) invention relates to a rollerV type window screen for1 use with a conventional double hung window, one endoffthe screen zbeing fastened to the window sill and the..other=end ofithescreen being wound upon a roller. The roller is.zcarried by a supporting structure which lis anchoredjto the inner (lower) window sash atthe lower end thereoff so that each time the inner window sash is rai'edv for. ventilatiou purposes, the window screen unrollsiand. covers the window opening beneath said sash.

O ne object of'the invention is to provide in a roller type screenacombinedbracket and casing assembly for rotatably carrying the roller andfor anchoring the roller relative, to theinner window sash, said bracket and casing assemblyV including inexpensive and novel construction4` features.

Another object'of the invention is to provide, in a roller type window screen, generally U-shaped brackets which rotatably, support the screen roller, said brackets being respectivelyslidably mounted in and guided by the conventional channelsformed in the face of each of the side jambs of the Vwindow frame. An upper outwardly projectingleg ofreachwbracket is anchored at a respective elndiofM a U-shaped casing member which is fixed to the window .sash and a lower -outwardly .projecting leg of= each brackethas av spring finger anchored thereto for engagin'g'the adjacent margin of the window screen, holding the same in snug contact with one face of the molding strip which forms the outer wall of the jarnb channel.

Another object of the invention is to provide novel means for supporting the screen rolier relative to the bracket whereby to permit adjustrnent of' the tension spring within the roller without the need of disassembl-ing theroller from its supporting brackets.

Other. objects and advantages of the invention will become apparent from the ensuing specifications and the appended drawing in which:

Fig. 1- is. a.. side elevational view of.V a conventional double-hungV window and window frame showingV the Window, screen mounted relative thereto;

:Figlfis asectional view taken on line2-2 of Eg. i;

Fig. 3l is, a fragmentary sectional view taken on. theV line 3-3 of Fig. 1; i

Fig. 4 is a fragmentary sectional view taken on line 4-4 of Fig. 1;

Fig. 5 is a fragmentary sectional detail view taken on the line 5-5 of Fig. 4; and

Pig. 6 is a fragmentary sectional view taken on the line 6-6 of Fig. 5.

In a conventional double hung window construction the w-indow frame comprises a header 2, a sill 3 and a pair of parallel spaced side jambs 4 and 5. Each jamb is provided with molding strips 6, '7 and 8 which may be integral with or may be separate strips anchored to the inside faces of the jambs. These molding strips extend throughout the 'length of the jambs, parallel to and spaced from each other whereby to provide a pair of longitudinal channels 9 and 11 in the inner face of each jamb. The channels 9 are opposed to each other and channels 11 are also opposed to each other. The inner window sash, 13 .has its side marginsprojecting into channels 9 respectively for sliding movement up and downV relative to the jambs and the outer sash 12 is mounted similarly in channels 11'. In a conventional double hung windowconstruction the outer window sash 12, when in closed position, covers the upper half of the window opening and the ,inner sash 13 when in closed position, covers the lower half of the window opening.

The window screenassembly includes a screen 14, the lower margin of which istanchored to the window sill by a bracket, generally refered. to by Jthe numeral 15, which extends across the entire length of the window sill from one jamb to the opposite jan 1b The bracket ,15 may be generally L-shaped in cross section and formed of a pair of angle lirons or stampings 16 and 17 nested oneV within the other and anchoring the lower longitudinal marginal portion of the screen 14 between the two stampin'gs.v Several anchors 18are secured to the window sill as by screwsV 19 for clamping the bracket 15 to the windowvsill.

Thescreen is rolled upon a roller 10, carried by inner sash 13 v A roller-casing 20 which may be generally U-shaped in cross section and which is open on the undersicle, has its side walll 21; anchored to the lower marginal portion of the inner window sash as by means of screws 22. The casing extendsthroughout the length of the window sill and its ends 23 and 24 terminate justshort of the outer faces of the molding strips 7 and 8, astbest viewed in Fig. 3. The ends of thecasing clear the molding strips as the inner window sash and the casing are raised or lowered relative to the window jambs. A pair of U- shaped brackets, generally referre-d to by the numerals 25 and'26, have respective upper legs 27 which overlap the bridge portion 28 of the casingV at opposite endsV so as to permit siaidrbrackets to freely slide within saidV channels whenever. the inner windowv sash is raised or lowered. i

The lower leg. 32 of: each bracket carries a spring finger. 33. Each spring finger` 33 has. a shank 34 which is: secured. to the inside face of the lower bracket leg as bymeans ofrivets; 35. The spring fingers 33 are curved as shown in Fig. 4; andresiliently bear against the respective longitudinal marginalportions of thescreen 14,

forcing said marginal portions of the` screen, against the inner faces. 37 i of therespective molding strips 8 to prevent the entry of insect's at the side margins of the. screen.

the roller and the bracket: 15. is; maintained inV a taut condition by means of the coil spring 39 and the side margins of the screen will rest quite snugly against the inner faces 37 of the molding strip 8 th-roughout their longitudinal extent even though the spring fingers 33 bear against the margin of the screen at only one point thereof. The side marginal portions of the screen thus bear against the faces of the molding strip throughout the entire height of the unw'ound portion of the screen. The finger 33, where it bears against the screen, preferably projects outwardly slightly beyond the side edge of the bracket leg, as best viewed in Fig. 4, so that only the finger has contact with the screen.

The roller li) is tubular and has cylindrical caps 41 and 42 at its respective ends. The cap 41 has a trunnion portion 43 which is rotatably journalled in an opening in the web portion of the bracket 25. A rod 44 is located within the hollow roller and extends throughout a major Patented, Mar- 4, 19.58,V

Itwill= be, noted' that as the inner window sashV is raised: and; the screenV unwinds from its supportingroller 10,V the,l unwound portion of theV screen between;

i V portion of the'len'gthbf the' roller. The'free end 45 of i the rod terminates well 'within the length of the roller;

VVTherother end of the rod 441-'has a Vtrunnion portion 46, i Which'terminates witha tip 47 vof square section.M Thisv sqnared'tip 41 [of ther1r'od744 is fnormal1y1receiv'ed`f inia'f complementary square japertur'e 48l 'int-threbjridge' po'rtilor'i of'braclret 26 to normally restrain 'r'otation 'ofjthe-r'od j Vrelative to the bracket 26.VV The hollow roller` is normall VVrotatahle relative to the 'rod 44`within the limits permitted by the tension, of coil spring 39. One end of the spring' 33' is anchor'ed to the roller 10,'as at 49 and the z other end of the tensionspringlis anehoredV to the rod 44 i as at 50. The end of the screen whichis opposite from the end that is anchored to bracket V is .anchored to the'` exterior cylindrical surface of the `roller 11V0s'o'a' -to bei i Woundiupon the roller or unwound from the roller 'as the window sash'is raised and lowered. `During thezraising 'of the window'sash. as the screen is being unwound from the roller, the rod 44, being stationary, causes'the spring V39V Vto coil, thereby increasing vthe tension thereof, and

when-the window sashis lowered, the tension of the spring i causes-rotation of the roller in the vdirection to re-wind the screen on the roller.` i i t i inV the event it is desirarble to adjustithertension'of' the i spring 39, it is only necessary to insert a screw driver into Iclaim: i i i 1 In combination with a window `frame--including-a sill and spaced opposed jambs each having inner,V intermediate and outer spaced parallel Vertical molding strips cooperating therewith to define inner and outer` adjacent parallel y i v Vertical slidewaysgthe ways'of` Vthev respective jambs be-V ing arranged as inner and outer opposed Vpalrs; a lower h, sash slidable-in theV inner pair of`ways,'said` sashincluding a` bottom cross frame membergan .open bottom roller casing of formed sheet materialr'of inverted channel form horizontaliy traversing the spacebetweenfsaidjouter pair of `ways with its ends disposed slightly short of said interm-ediate molding strips, said casing'includiiigean'i'nner Vertical wall member secured tothejonter face Vof said i bottoin cross frame member, a top web bentrgenerallyV horizontally outwardly from thev upper eirtremity ofusaid inner Vertical-Wall member, and anv outer wall member bent downwardly fromrthe outertextremity of saidV top web i arm and disposed vertically within a respective outer. way,VV V7and a bottom arm projecting toward'y the center ofithel the siot 51 and push the rod axiallyV into the roller until the squared studr47 of the rod clears the inner face 52 of bracket 26. Then the rod may be rotatedrrelative to the roller to change the tension of the spring 39.

' The rod 44 has, adjacent trunnion 46, an annular flange t 53 which will engagethe endv 54VV of the roller 10 to limit the axial movement of the rod so that the trunnion 46V VremainsV journalled in its bearing-the bearing being the circumferential wall of end capv42 which defines the aperture therein. VThe outside diameter of the flange 53, however, is only slightly less thanrthe inside diameter of the inner circurnferential Wall of the cap V42, thereby assuring continuing alignment of the trunnion 46 relative to.

the cap aperture. t t

' The flange 53 is of larger diameter than the internal diameter of roller 10, and is received in an annular space defined between the end of roller 10 and the end of member of cap 42, said annular space having an axial dirnension whichis greater than the thickness oftflanrgev 53; by an amount slightly more than .the thickness of thel web portion 30 of bracket 26, so that the endwise movement of rod 44 'will be permitted to a sufficient' extent to Vrelease stud 47 from its. aperture 48 in web member 30.

As a means of Vclosing the gapbetweenV sashes when either sash is in an open Vposition,'the horizontal lower frame bar of outer sash 12 (or the horizontal upper frame bar of inner sash 13) is preferably provided witha sealing tstripw552 attached thereto and extending the full distance between the respective side margins ofV the opposed Window pane of the other sash.V Strip is formed to project'into engagernent with such opposed window lpane i with atlight yielding engagement, and as Vyieldable to be received between the two horizontal sash bars just mentioned, when both sashes are closed.

outwardly of the common'plane of the innerA transverse faces of the outer molding' stripsa pair of bracketsv; generally of C-configuration, each including'a/topjarmj secured to said top Web andrprojecting'into a respective outer way, a Vertical arm bent downwardly fromrsridtop sash from the lowerextremity of said outer arm; a springj roller in saidv casing, its :ends projectng into 'said'fouter waysand mounted in said Vertical bracket arms; a ,screenf 'i anchored to said roller and rolled thereon, thelower end t of said screen being anchored tosaidjsill inhza plane mediately adjacent said common plane so that saidscreel'J. makes contact with said inner transverse Vfacesof said outermoldingstrips at .the lower ends thereof;fandlindependent pressure elements of ribbon spring fmetalv each including arflat bodyportionsecuredto the bo'tt'o'm'arm of.V a respective bracket'and having an integral springfin'ger .projecting upwardly from the outer 'end of saidfbody i portion,V curved outwardly in a VVertical directionffnd yieldingly pressing a respective side marginal'portionttof, said 'screen against the respective inner transverse face of a respective outer molding strip, saidsprinig lrolleribeing i operative to maintain the screen stretched-flatly in said common plane of said inner transversetface; with said t side marginal portions in contact with-said inner ftransj verse faces. i h i i References Citedin the file ofithisj patent' UNITED STATES PATENS` Lockhart t Aug. 5, 19 52 whinier' sept. 8,1868' i

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