US2552752A - Upward acting door construction - Google Patents

Description

May 15, 1951 Filed Nov. 22, 1944 A. VENDITTY UPWARD ACTING DOOR CONSTRUCTION '7 Sheets-Sheet 1 A. VENDITTY UPWRDV ACTING DOOR CONSTRUCTION May 15, 14951 '7 Sheets-Sheet 2 Filed Nov. 22, 1944 May 15, 1951 A. vENDnTY 2,552,752

UPWARD ACTING DOOR CONSTRUCTION Filed NOV. 22, 1944 '7 Sheets-Sheet 3 May 15, 1951 A. vENDlTTY 2,552,752

UPWARD ACTING DOOR CONSTRUCTION Filed NOV. 22. 1944 '7 Sheets-Sheet 4 /25 FQTJ.

lw% MM45.

A. VENDITTY UPWARD ACTING DOOR CONSTRUCTION May 15, 1951 7 Sheets-'Sheet 5 Filed NOV. 22, 1944 May 15, 1951 A. VENDITTY 2,552,752

UPWARD ACTING DOOR CONSTRUCTION l Filed NOV. 22. 1944 7 Sheets-Sheet 6 May 15, 1951 A. vENDlTTY 2,552,752

UPWARD ACTING DOOR CONSTRUCTION Filed NOV. 22, 1944 7 Sheets-Shea?l 7 .for attachment to the door jambs.

Patented May 15, 1951 UPWARD AGTING DOOR CONSTRUCTION Anthony Venditty, Detroit, Mich., Vassignor .to

CrawfordlDoor Company, Detroit, Mich., acorporation of Michigan .Application November 22, 1944, Serial N0..564,596

` Claims.

This invention relates to `upwardffacting `closures which can be readily installed in buildings, garages and the like without theaid of experienced or skilled labor.

Specically, the invention relates toanupward acting door assembly wherein the'actualaclosing member or door'isvattached todocr hardware, and wherein the door `hardware is so prefabricated that a complete operating doorasseinbly can be quickly installed` in adoorw-ay .with the aid of only a hammer, a.wrench, and .a screw driver.

A feature of the doorhardware is that itwill operate asan upward acting assemblyina-doorway without the closure member or doorbeing attached to `the hardware.

According to this invention..an..inexpensive, eflicient andeasly installed .upward .acting tilting type door construction `isprovicled.orlproducingall ofthe advantages. of..an.,overhead door without the heretofore-encountered expensetand installation difficulties.

The doors of this invention swing onlinks` or arms from closed vertical position to. open overhead horizontal position while the upperends of the doors are supported OnpVerhea-d horizontal tracks. The invention provides door assemblies which can compete favorably on .a price basis with hinged doors, and can be installed'by the average home-ownerwith less skill'thanis required for the installation oi hinged doors.

Doors of `this invention have end edges formed with pre-cut slots, grooves, holes or other retaining apertures, and can be provided in aplurality of individual door sections. Since the door is mounted on the hardware insteadA ofthe customary mounting of` the`hardware on the door, the door itself is not loaded, and is a merefiller or doorwayclosing means that can vary widely in construction. Cheap lightweight wood orsheet :metal doors can be used, aswellasheavyifancy doors.

The hardware in the doorassemblies of this l:invention includes two linked-togetherassemblies composed oft metal strips for attachment to the edge portions of the Ldoor, links pivoted to the metal strips, andlbracket-carrying weatherstrips The metal strips carry rollers which ride in tracks to guide the top end oi the door. These-.strips also carry coil spring retaining brackets and link pivot brackets. Coil tensionwsprin-gs are provided, and each spring .has one end secured on the metal .strip carried Hspring retaining bracket, and the other end: secured :on l.zaretainer adjacent vthe pivot connection between the link. and weatherstrip.

In one formof the inventiomthe, springs are pivotally arrangedondouble pivots relative to the .metal stripsso thattheywill ,exert astraight stantially vertically aligned with the pivot points of the spring-retaining brackets on the metal strips when the door is in closed position to prevent slamming of the door. ,Howeventhesevpivot points, in this other form of the inventori, are shifted as the door moves to open position soA as to be behind the spring retainer pivots thereby causing the springs to have an inward pull on the door for holding it in open position.

The metal strips extend along the entire height of the door and serve to secure the door sections together if a plurality of sections are used, in addition to serving as supports and rigidifying means for the door. These metalstrips preferably take the form of channels or angles which embrace the side edges ofthe door andhave tangs or inwardly projecting lugs `for `iitting in recesses in the side edgesof the door. These tangs and recesses serve to automatically correctly position the channel or angle strip tothe door.

The metal strips and weather strips of the link assemblies are preferably bolted together tofacilitate installation.

To operatively assemble doors of this invention in a doorway,`it isonlynecessaryto carry out the following steps:

(l) The door islaid `in a flat position adjacent the doorwayonhorses-or thelike supports,

strips and Weatherstrips together arew removed, the door is swung to open overhead; positionaand (4) The screws temporarilyholding\ theymetal the coil springs are hooked onto the strip carried brackets and the pivot supports adjacent the pivots between the links and weatherstrips.

In one form of the invention the metal strip for attachment to the door is an angle strip with one leg extending over the side edge of the door while the other leg extends over the inner face of the door for only a part of the length of the strip and is then bent laterally outwardly from the door to overlie the weatherstrip on the door jamlo. The laterally outward position of the leg extends along that upper portion of the door which tilts inwardly while the portion of the leg Vthat overlies the inner face of the door extends along that lower portion of the door which tilts outwardly. The weatherstrip 'extends from the top to the bottom of the doorway, and has a portion projecting laterally into the doorway to overlie the leg of the angle strip on the inner face Y of the door, together with a bent portion overlying the side face of the door jamb so that the laterally extending leg portion of the angle strip will overlie the Weatherstrip. In this arrangement the weatherstrip can carry a track supporting bracket, so that the correct position of the track is insured.

It is, then, an object of this invention to provide an inexpensive upward acting door construction that can be readily installed bythe average home-owner Without the aid of special tools.

A further object of the invention isfto provide an upward acting Vdoor construction wherein the door becomes a mere doorway ller, and isV at- Y tached to door supporting hardware.

Ak further object of the invention is to provide preassembled door hardware, and pre-cut doors for mounting on such hardware so that upward acting doors can be quickly installed by unskilled labor.

' A further object of this invention is to provide Y a pre-cut door and pre-assembled linkages of door hardware which readily receive the door and are readily attached to door jambs for tiltably carrying the door. A still further object of the invention is to pron, Vvide pre-assembled door hardware for use with coil tension springs wherein the coil springs will tion costs'of upward acting garage doors.

Other and further objects of the invention will be apparent to those skilled in the art from the Yfollowing detailed description of the annexed sheets of drawings which, by way of preferred example only, illustrate one embodiment of the invention.

On the drawings:

YFigure 1 is an elevational View of aV doorway,

viewed from the inside thereof, and having a doorl according to this invention mounted therein in closed position.

Figure- 2 is a broken vertical cross-sectional view, with parts in elevation, taken along the line II-II of Figure 1 but illustrating the door in partially opened position in the doorway.

Figure 3 is an Yenlarged fragmentary horizontal cross-sectional view,V with parts omitted, taken along the line III-III of Figure 1.

Figure 4 is a -front elevational View of the as- .sembly of Figure 3.Y

Figure 5 is an end elevational view of a linkedtogether door hardware assembly according to this invention.

Figure 6 is a front elevational view of a door according to this invention.

Figure 7 is an enlarged cross-sectional view, with parts in elevation, taken along the line VII- VII of Figure 2.

Figure -8 is an enlarged fragmentary vertical cross-sectional View taken, along the line VIII- VIII of Figure 1.

Figure 9 is anY enlarged end elevational view of the spring bracket on the hardware of this invention. Y y

Figure 10 is a front elevational view of the bracket assembly shown in Figure 9.

Figure 11 is an enlarged fragmentary end ele-- vational View of the lower portion of the link arm of the hardware of this invention.

Figure 12 is a cross-sectional view, with parts in bottom plan, taken along the line X11- XII of Figure 11. i Y

Figure 13 is an inside elevational View of a door and doorway, similar to Figure 1, but illustrating a modied form of door assembly according to this invention.

Figure 14 is a broken vertical cross-,sectional view, with parts in elevation, taken along the line XIV-XIV of FigureV 13. Y

Figure 15 isa view similar to Figure 14, but illustrating the door in partially opened position.

Figure 16 is a view similar to Figure 14 but illustrating the door in a fully opened position.

FigureY 1'7 is a broken fragmentary vertical cross-sectional View, with parts in elevation, of the door and door hardware for the door of Figure 13, illustrating the arrangements of the pivots when the door is in closed position.

Figure 18 is a fragmentary horizontal .crosssectional view taken along the line XVIII-.XV III of Figure 13.r Y

Figure 19 is a fragmentary isometric'view of the door and door jamb of the door construction of Figure 13 illustrating the arrangement of the metal strip and weatherstrip.

Figure 20 is an isometric view of a door` frame for completely surrounding the door according to the modified embodiment of the invention.

Figure 21 is a horizontal cross-sectional view taken through a door equipped with a modified arrangement of metal strip according toY this invention. Y

Figure V22 is a view similar to Figure l but illustrating another modified metal strip arrangement on the door.

As shown on the drawings:

In Figures 1 and 2, the reference numeral Iii designates a door, composed of superimposed horizontally extending door sections, for opening and closing a doorway I I defined by a top lintel I2, side door jambs I3, I3, and a iioor F.

Overhead tracks I4, I4 project inwardly from the doorway II at levels adjacent the lintel I2. These tracks I4 have front end flanges I 4a secured to the inner faces of the side door jambs I 3 by means of square-headed screws I5. The tracks I4 also have flanges Ib at their rear ends as best shown in Figure 2, which are secured by means of bolts I to brackets I'I depending from an overhead beam I3 carried by the building containing the doorway II. Y

The tracks Ill have curved bottom flanges Ille and flat top flanges Ilid overlying the curved flanges. Theilanges support and retain rollers of. -the-lowerends ofl'link arms'Z-IIby meanslof yrivet-` 'brackets 33 'byy means `ofl pivot pins 32.

.I3 '.having axles klreta'ined inthe .curledftopgends lhave outer portions:foruoverlying-the yinner -faoes of the door jambszl and'inner 'portions overlying yfthe =inner .face of the door I0.

Each -weatherstrip 2I is welded to the Ainner iiange 22a of La channel-istrip n22i embracingV the side edgesof the door; "The channelstriplZzZ. ex-

tends from the top to the bottom of the door and the weatherstrip 2"I is :weldedz to the upper portion only :of the strip.

CThe lower portion of `eachchannelstrip 22A has fa bracket23 welded fto "the innei'ange-22a there- The bracketsf23'V are-pivotally connected rto like pivot pins 25. The upper ends of the link arms 214 are `pivoted 'to brackets A2li ibyw-means of rivet-like pivot pins 27. yThe brackets Z6 are riveted orwelded onto elongated Weatherstrips 128 which are -secured tothe inner faces of the -wrappediaround-the retainers 33. The-flowerLend `coils oi` the springs-3 5 receiveretainers^3 which are hooked :onto integral hook portions 24a of Vthe `link Iarms 24.

The door is `thus secured `at-fits side :ed-ges in Athe channel strips 22 and the upper .end of the door 'is suspended .fromithe :tracks 1I dithrough ,the rollers I9, axles 2D, and weatherstripsll welded on the channel strips 22. The lower end of the door is pivotallylconnected through `the-flink'arrns 26 with weatherstrips .28 secured to the door jambs, The door` is thereby mounted in the doorway for swinging movement from theclosed vertical position shown in Figure 1 through the intermediate open position shownV in Figure 2, to a fully opened overhead position lying 'horivzontally'parallel with the tracks :M The link arms 2d will swing about `their pivots 2 .from downwardlyextending position, shown in Figure 1, to upwardly extending position vfor holding the bottom end of'thedoor adjacentithe lintel `5.2. Thedouble pivots 32 and 3ft for the upper'end of the spring are arrangedso that thospring will have a straight upward pull on the door in closed vertical position to Aprevent..slamrrling or thedoor into closed position and an ,inward .pull on the door in overhead position to Ahold the door open.

In order .to lock the door in `closed position, iiipper devices best shown in Figures 1, 3 and 4 areprovided on the inner-face `oi the door lil adjacentthe sideedges thereof at levels beneath the pivotal axes 2l 'for the door. As shown in Figures 3 and 4, a plate 3 7 is welded on the inner flange 22a of the channel strip andfprojects therefrom over the door `to be secured to the door ID by meansV of screws or'the like. Theplate` -has an offset portion 37a overlying and welded to the iiange 22a of the channel strip 22 and, to permit full seating of lthe flange 22o on the '-Weatherstrip 28, the weatherstrip2-8 has `an offset localized portion 2mb-.thereof receivingthe :forwardly Vprojecting ,end 31a. of the; plate. Alhe arangement yis such .that the -weatherstrip -28 will .contact the .tangefi'ZZa ,of i the` channel strip alongits entire lengtnexcept at'thelocaliaed portion 28a. thereof. This1portio11 ,28a thereof will contact the `plate .portion 31a.

.Raised .portions `3111- are formed .on theyplate :in spaced opposed aligned relationship'to Adene vpivot supports for `a flipper member 3.8. `The lnipper member-133 Ihasanoffsetrront end portion 38a .for engaging the Weatherstrip 2B. YEa1s38b arelprovided on thersides of the flipperin spaced relation from the .zend 138111 thereof :and `a vcoil spring 39 is anchored at one end to each ear 38h-,and at the other end toa tangf3'ic turned up from the edge lof the plate .31. The springs 33 pull the flipper 38 to the dotted line position shown in Figure 3, in which position the ipper will clear-the innerzedge of the weatherstrip L28.

A slide'barvllis slidably mounted through a slot in an upstanding flange 31d of the plate, `and-through an aligned slot in anupstandingear 'leof theplate.

'Thefbar Ill-has 1an upturned' end portion 43a foracting as a` presser foot to slide over the flipper 3S'and depress it into looked position-asshown in Figure 3. As indicated by the dotted lines in Figure3, thebarffl rocks relative tothe plate`3'l as it is moved from .flipper-releasing position shown in dotted lines to flipper-lockingposition `shown in solid lines. -'i-Ihis rocking action pro- -vides a` wedge 'for securingthe iiipper in'locked position.

The -inner `end of the bar Ml is oiset 'as at 40h and the offset portion is apertured to receive an'actuating rod 4I. A cotter pin 42 retains the `rod'in the laperture of the `offset portion ddh. The rod d! extends along the inner face of the door as best shown in Figure 1, to an actuating Vbar 42 of ailock device 43 secured on the inner face -of the door. The device 43 has a handle V43d which, when turned, draws the bar 42 inwardly to pull 'therod 4I and effect a sliding of the bar Viii to a position so that the spring 39 will release the 4'flipper 3-8 from locked position. A similar bar 42a actuates a similar `rod Ma to the lock bar di) of the other locking device.

The--fiipperst `upon being forced to locking position by the bars 40, serve to pullfthe door into afully'closedposition in the event that the door vhasnot been fully closed, since the oilset portions `33a of the flippers-will engagethe weatherstrips 23 and draw the channel'nanges 22a into tight engagement with the weatherstrips.

Eachweatherstrip 28, asalso shownin Figure 1, has `an Ainwardly oiiset ylocalized portion 23h beneath the` portion `280L1thereof-toform a pocket for receivingthe bracketK 2 3 when the Vdoor Vis in closed position, sothatthe ange 22a of the channelstrips will not be held in 'spaced relation from the weatherstrips by the thickness of this bracket.

.As illustrated in Figure 2, the link arms 24 are 4bent to provide depressed portions 24o in alignment with the -`iiipperplate 31 Vand actuating bar Aedge-otthe doorshown'in Figure. ScrewsS of the uself-tapping type Vten'iporarily holdtogether 'the Weatherstrip `28 and-channel strip 22-ofeach `the channel strip to the door. serve to locate and carry the weight of the door assembly so that each assembly can easily re- Y ceive a side edge of the door lying flat on horses and so that the door with the assemblies thereon can easily'be tilted into the dorway, leveled in the doorway, and have the weatherstrip 22 easil attached to the door jambs.

As shown in Figure 6, the door can be made in three separate panels lila, b, and 10c. The side edges of each panel have a plurality of transverse slots 45 therein. The channel strip 22, as shown in Figure 5, has an inner flange 22a for overlying the inner face of the door, a side iiange 22h for overlying the side edge of the door, and an outer iiang'e 22e for overlying the outer face of the door. The side flange 22h has tangs 46 turned up therefrom to project between the flanges 22a and 22e. These tangs 46 are positioned to fit into the slots 45 as best shown in Figure '1. The flange 22h of the strip 22 also has screw holes 41 therethrough to receive mounting screws 48 as shown in Figure '1 for securing The tangs 46 and the screws 45 need only be heavy enough to secure the strip iirmly to the door. The channel strip extends from the top to the bottom of the door and will xedly connect all three panels Illa, |02), and |00. Of course, the door could be in one piece, or more than three panels could be used, without departing from the invention.

YThe door, such as the central panel lob thereof, can have mounting holes 43 pre-drilled therein for receiving portions of the lock 43 therethrough so that the locking device can be actuated with a key from the outside face of the door.

Y through the lower edge of the door, the wrappedaround portion of the sheet 52, and the wood strip 5| to securely anchor the sheet to the bottom of the door.

The link arm 24, as best shown in Figures 5 and l1, is an angle piece with a leg 213e receiving the pivot pins and 21 and with a second leg 24d in angular relationship therewith. This leg 24d has an inwardly bent free end edge 24e as best shown in Figure 12, to better surround and engage the spring 35 as it is seated in the arm to dampen out vibrations of the spring.

A portion of the flange 24d is cut out into the shape of the hook 2da, and this portion is bent Y inwardly as shown in Figure 12 to underlie Athe spring 35 and engage the spring retainer 36.

As best shown in Figures 9 and '12, the bracket has a iiat side wall 30a which is secured to the weatherstrip 35. Top and bottom flanges 30h on this side wall 36a converge to a channel portion 30e with a laterally offset projection 30d. This projection d extends beyond the weatherstrip 28 as shown in Figure 10 and has a side wall receiving the pivot pin32. The rocker 3| has a top flange Sia receiving an adjusting screw 54 in threadedv relation therethrough. This adjusting screw is locked to the ange by means of a locking nut 55 on the screw. The screw 54 engages the top face of the offset portion 30d when the door is in closed position and serves to control the vertical alignment of the pivot 34 with the pivot 21 for the link arm when the door is in Vthe form of a flat plate with notches 33a along each side edge thereof receiving several coils at the top end of the spring 35. The coil spring 35 is threaded on the retainer 33 for a desired distance to adjust tension of the spring for counterbalancing the weight of the door.

In the embodiment of the invention shown'in Figures 13-to 19 inclusive, the door 60 is mounted in the doorway I defined by the top lintel I2, the side door jambs |3, and the bottom floor F. The door is composed of two sections 65a and 60h. The door is received at the side edges thereof by linked-together assemblies 6| which operatively mount the door in the doorway for tilting from a closed vertical position to an open overhead position. Each assembly il includes an angle strip 62, a link 63, and a weatherstrip 64. The angle strip B2; as best shown in Figure 19, has a leg 52a covering the side edge of the door 55 and extending from the top to the bottom of the door. A leg B2b of the angle strip Y(i2 overlies the inner face of the door and extends to a laterally outturned leg portion 62e. The outturned portion 62e terminates at the top of the door.

The portion 62o is of a length determined by the tilting axis of the door and only extends along that portion of the door which tilts inwardly. Tangs, lugs or other projections (not shown) are provided on the leg 62a for fitting into recesses (not shown) of the door to locate and carry the weight of the door and to hold the door sections 55a and Siib together.

The weatherstrip 'dit is a flat strip projecting into the doorway from the bottom of the door to a level adjacent the part of the door that tilts inwardly. This projecting portion 55a, as shown in Figure 19, terminates adjacent the top end of the leg portion 62h of the angle piece 52 and overlies this leg portion of the angle strip. The weatherstrip 54 has a part of portion [Sila thereof bent at right angles theretc` to provide a leg Sb from the top of the portion elle to the top end of the strip. This Yleg Mb covers the side face or the door jamb I3 and is in opposed relation to the leg 52a of the angle strip, thereby forming a metal shoe against which the edge of the door can rub. This shoe protects the inner face of the door jamb. The leg @2c of the angle strip overlies the weatherstrip B4.

The two strips E2 and 55 thereforecooperate to provide weatherstrips for the sides of the door and to carry the door inthe doorway. For assembly purposes, screws Vsuch as S temporarily connect the strips 62 and 6A against relative movement so that the door 65 can be laid iiat'on horses or other supports and the assemblies 5I can readily receive the door with the strips B2 of the assemblies being attached to the door.

The door With the assemblies thereon is then tilted into the doorway, leveled in the doorway, and the strips Sil of the assemblies are secured to the door jambs by means of lag screws 55 or the like. Y Y

The weatherstrips 62, as best shown in Figures ansa-risa keyhole slots r68a..in1 theirupper. ends adapted tor` receivethefpivotsl61 through the large endsthe-reof and the?? pivots [have shanks .i @1a. to'.` receiveJthe' small endsof. the slots whereby the retainers'can-I be readily attachedsto the pivots. The retainers' have notched ends receiving the end. coils of.` counterbalancing. tension springs 69a The: opposite end` coils of. the tension springs.A 6d are: threaded on notchedlends ofr bottom..retainers10iA which have keyholeslots wafer receiving pivot. pins 1l and. for seating: on the shanks 'lalawofi these `pivot pins. .The pivot pins 1I Lare secured onbrackets 12 carried 4by the.v lower ends ofithe.l link arms 53. These brackets 12.' are pivotally connected by pivots 12 tollugs 'lli` on the weatherstrips 64- near the bottom ends 4of thev weatherstrips. The brackets=1f2 therebyJ serve to .pivot-- ally connect thelink arms 63` with theweather-` strips Bil and also pivotally` carry the lower-spring retainer 'l0 for the springs.

'Ihe upper ends of` the links arms 63 havel brackets 15'secured'thereon similar to the brackeets 12;. and these bracketsV 15 are pivot'ally` connectedtobrackets 16 on the weatherstrip 6s at levels-beneath the brackets y 66.

Each. bracket 15 carries` twol horizontal pivot pins 11A and 18. The pivot pin 11,.as"shown in Figure 17, seatsin arecess or notch 15a'provided. in the topedge of the bracket 15. The pivot pin 18 seatsin an arcuate slot 15b of the bracket 15` The pins 11: and 13 serve to pivotallyconnct'the link arms- 63 with the weatherstrips flandl. as explained above, the link arms in turnare' pivoted to the angle strips on the door.

As shown in Figures 13- and 17, the angle` strips 62icarry brackets 19 on the topendsfof the legs 62`c thereof and these` brackets overlie `the' inner face of the door 60 and are also secured to the top of the-door by means of lag screws 86. The brackets 1s carry rollers 8l which ride in tracks 82. The tracks 182` have their forward ends carried by brackets 83 on the upper ends oflthewe'atherstrips 64. Thus the. weatherstrips 64 are continued to the upper end of the doorway and serve to locatethecorrect 'position for the tracks- 82 while the angle` strips 62 car-ryrthe' bracketslfor the rollers that ridein' the tracks..

lAs .best illustrated in Figures lllfand I7; when` the door is in closed positionthe` pivot 61: for. the upper end or the spring 69 is-substantially vertically aligned with the pivot 1=1 for the upper `endl of the link. 63 and the spring hasa substantially straight upward pull on the door'. This-.prevents slamming of the door into closed position;

As shown in Figure 15, when thedcor isrtilted in moving toward overhead open position,.the1 sloti15b ofthe bracket 15 movesV relative: to the. pivot 1B, and the pivot 11 remains seated in the notch 15a to remain the effective pivot for the link arm.

As shown in Figure 16, when the bottom of the slot contacts the pivot 18, this pivot becomes the effective pivot for the link 63, and the notch 15a is moved out of engagement with the initial pivot 11. As a result of this shifting of pivots, the effective link arm pivot 18, when the door 60 is in open position, is forwardly of the spring pivot 61 and the spring 69 has an inward pull on the door to hold it in overhead open position.. Therefore, instead of shifting pivots Vfor the spring, the modified construction includes a shift- 1c ingo'fpivotsi'for the link` arrn` to producers;y similar effect.

As also shownin Figures 14 to' llthe link arms 63 have side-flanges 63a which are t'urr'iedlin-v wardly to a` greater extent at.y the intermediate portions of the link' arms than` at the ends ofthe arms.` As the; spring 69 nests into'a link arm' 63,. when .the door approaches closed position,.the flangev 63a successively contacts more of. the length Vof the spring 69 to dampen out vibrationst of the spring, and, when the door. is. in closed` position, contact betweenthe spring and. al. pdrtion` of the flange 53a is insured. A

The.' modified door construction of Figures- 13: to 19` thus includes the assemblies 6I whichslots in thespring retainers 68 and 10 affordian' easy method oi connecting theisprings.

If. desired; asshown in 11igure20;` a fram'e 85 can: be provided to surround: the entire door.i This trame is conveniently composed of. angle'l strips' withA legs 35a for overlying affaceof ther door and legs 65h" at right angles `thereto forv covering the-edges of.' the door. With?thisll'rame type construction, the door can becor'nposedr-of very inexpensive. lightweight material. 'IherdoorY can readily be secured to either or both of' the The angle strips canlegs'viof the angle strips. be hinged` or bolted together at the cornersof the frame.`

As shown inl-Figuren, instead of having a leg,

of an. angle strip extending over anV edge ofthe.' door, an=angle strip-86 can have'aleg 86a secured.

tothe inner face of` the door by means of screws such as-81- andcanhavea leg 86h projecting;inl'-H wardly from the. inner face of the door tol carry the brackets for providing assemblies `similar to` the assemblies 6I.

Asshownzin Figure 22, the door Sli canfreceive a `channel `strip` on the inner face thereof: and..

this channel strip can. have` side legs 88a bottomed on the door together with a` connecting. web portion 88h i spaced inwardly from thel inner face ofthe door. The inner faceof the door'can be slotted or groovedat intervalsfalong its-height.

as at 8.9, and tangs 88o can be stampedfrcm the' web 63h of the channelstrip to tinthe-grooves 89 so that-the channel strip will locaterand carry theweight of the door. Means such as holtsll` can project throughA the web'88b-of the channel strip= towcarry the. brackets for forming, assembliessimilar to'the assemblies 6l;

All of the hardware parts for the doors of this invention can be formed by stamping operations on sheet metal. The strips for forming weatherstrips and angle strips can be made from the same strip stock throughout. Strip stock two and one-half inches wide and one-sixteenth inch thick is satisfactory for the average single garage door.

From the above descriptions it should be understood that the invention provides assemblies of hardware especially arranged for receiving doors. These doors are slotted or otherwise recessed so that they can be attached to the hardwire only in the proper positions. The hardware is'inexpensively made from conventional metal strip stock and is furnished in such a manner that the doors can be quickly installed without special tools and by unskilled labor.

It will, of course,'be understood that various details of construction may be varied through a wide range without departing from the principles of this invention, and it is, therefore, not the purpose to limit the patent granted hereon otherwise than necessitated by the scope of the appended claims.

I claim as my invention:

1. In an upward acting door construction, a

pair of hardware assemblies each comprising a channel member having a roller adjacent one end thereof adapted to engage a trackway, a weatherstrip assembled to the jamb of a doorway, a' link arm pivotally connected at one end to said weatherstrip and at the other end to said channel member adjacent the other end of said channel member, and a counterbalance spring connected to said weatherstrip and to said channel member, said pair of assemblies adapted to be aligned in parallel spaced relation and a door panel insertable between said assemblies and having opposite marginal portions received in rm assembly with Vsaid channel members.y

2. In an upward acting door construction, a pair of hardware assemblies each comprising a channel member having a roller adjacent one end thereof adapted to engage a trackway, a weatherstrip assembled to the jamb of a doorway, a link arm pivotally connected at one end to said weatherstrip and at the other end to said channel member adjacent the other end of said channel member, and a counterbalance spring connected to said weatherstrip and to said channel member, said pair of assemblies adapted to be aligned in parallel spaced relation and a door panel insertable between said assemblies and having opposite marginal portions received in firm assembly with said channel members, said channel members and said door panel having intermating tangs and recesses, and fastening means to secure said door panel to said channel members, whereby said tangs relieve'said fastening means of support load.

3.` In an upward acting door construction, a pair of hardware assemblies in spaced parallel alignment each comprising a channel member having a roller adjacent one end thereof adapted to engage a trackway, a weatherstrip assembled to the jamb of a doorway, a link arm pivotally connected at one end to said weatherstrip and at the other end to said channel member adjacent the other end of said channel member, andV a counterbalance spring connected to said weatherstrip and Vto said channel member, and a plurality of vertically separated panel units insertable between said assemblies and received byV each of said channel members in firm assembly.

4. In an upward acting 'door construction, a` pair of hardware assemblies in spaced parallelV alignement each comprising a channel member having a roller adjacent one end thereof adapted to engage a trackway, a weatherstrip assembled to the jamb of a doorway, a link arm pivotally Y connected atone end'to said weatherstrip and at the other end to said channel member Vadjacent the 'other end of said channel member, and aV counterbalance spring connected to said weatherstrip and to said Channel member, and a plurality of vertically separated panel units insertable be-Y tween said assemblies and received by each of said channel members in firm assembly, said channel members and said panel units each hav-Y ing interlocking mating means to engage one Y another for effecting load Vdistribution between said panel units and said channel members.

5. In Van upward acting door construction, a

pair of hardware assemblies each comprising a channel member having a weatherstrip portion adjacent one end thereof, said weatherstrip portion having a roller adapted to engage a trackway journalled therein, a separate weatherstripY assembled to the jamb of a doorway, a link arm, a bracket adjacent the other end'of said channel member pivotally connecting one end of said link arm to said channel member, a bracket carried by said separate weatherstrip pivotally connecting the other end of said link arm to said'separate weatherstrip, said assemblies arranged in spaced apart parallel relation, a panel--inserted between said assemblies having opposite marginal portions received by said channel members, said channel members each having inwardly directed tangs and said panel having recesses in the marginal portions thereof to receive said tangs and fastening means to secure said panel in firm assembly with each of said channel members, said tangs and recesses arranged to take the load off of said fastening means.

ANTHONY VENDITTY.

Y REFERENCES CITE!)Y Y The following references are of record in the le of this patent:

n UNITED STATES ,PATENTSy Number

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