US1270011A - Slidable metallic door. - Google Patents

Description

W. L. CONWELL.

SLIDABLE METALLIC oooR.

APPLICATION FILED DEC. 4.1914.

Patented June 18, 1918.

3 SHEETS SHEET L Eig. 5.

WLS

@vi/meow@ W. Ll CONWELL.

SLIDABLE METALLIC DOOR.

APPLICATION FILED DIc.4` I9I4.

Patented June 18, 1918.

3 SHEETS-SHEET 2- W. L. CONWELL.

SLIDABLE METALLIC DDG-R.

APPLICATION man naa/4.1914.

1 270,01 l Patented June 18, 1918.

3 SHEETS-SHEET 3.

ZI 25K UNITED STATES PATENT OFFICE.

WALTER I.. coNwELL, or. noN'rcLaIR, NEW JERSEY, .assIGNoR To .ELLcoN'eoMraNY,

- or NEW YORK, N. Y., A CORPORATION or ,NEW Yom;

'.snmaREE iaEraLLrc Doon.

Patented June 18,' 191s.,

appimation ined necemb'ere, 1 914. serial No. 875,482.

To all 'whom it may concern:

-Be it known that I, WALTER L. CONWELL, residin at Montclair, New Jersey, and being a citizen of the United States, have invented certain new and useful Improvements in Slidable Metallic Doors, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and to use the same, reference being had to the accompanying drawin which illustrate the preferred form of t e invention, though it is to be understood that the invention is not limited to the exact details of construction shown and described, as it is obvious. that various modifications thereof will" our to persons skilled in the art.

In said drawings: Figure l is aside elevation pf my .im-

proved door, the weather strip for the upper edge thereof being omitted.

Fig. 2 is a similar view on an enlar ed scale, horizontal andvertical intermediate portions being broken away. V l,

Fig. 3 is a vertical central section through the door, taken on line 3 3, of Fig. 1. Fig. 4 is a horizontal section taken through the middle and lower panels of the door, as indicated by line 4-'-4, of Fig. 1, the central portion of the door being broken Fig. 5 is a fragmentary elevational view of the upper left hand corner of the upperV panel, as viewed` from the reverse side of the door, and shows a portion of the glassretaining means.

Fig. l6 isa similar view, buty with .the glass-retaining means removed.

Fig. 7 is a side elevation of one of the corner pieces of theA molding for the 'glass panels.

Fig. 8 is an end elevation thereof.

Fig. 9 is a fragmentary side elevation of -erably pressed to present a conventiona line' 1313 of Fig. 12through thefupper and lower panels of the door, the central portion'of which is removed.

My present invention relates to metallic doors, which while readily adaptable to genV eral architectural purposes, are particularly suitable for use in railway cars. An object is to provide a door, which shall be constructed of incomplex parts, relatively few in number and kind. Most of said parts are characterized by their ability to be kept in stock, and merely cut to size to give :the desired dimensions to any given door. o It is further purposed to so correlate the.

side sheets ofthe door/with th'ejdoor edge andj'pan'el outlining frame as to give great y strength and rigidity to the door, and to so y unite these parts as to guard against their 'accidental separation.` y

= it is desirable thatthe door edges sha-1l jeachfbear an. appropriate relation t0 the corresponding portion of the structure forming the door opening, and in `view of the diverse conditions present in the various portions of the latter,.it is purposed that the door edge outlining frame shall be furnished with suitable means-of attachment for harmonizing'complementary edges.-

Simple but effective means .for retainingv'removable glass or other panels are supplied,l and are so formed as vto contribute to the attractive appearance of the door.

Another object isl to include effective reinforcements for stiiening the door and providing means of Aattachment for locks,

door operating apparatus, and sundry ae-A en f Exclusion of air currents or drafts whenv the door isclosed is also made ossible by the construction of the door, an other features not specificallyA mentioned, but appearing hereinafter, fare all a part of the present invention. EL

Referring tothe drawings, `l'indicates theside sheets, of the door, which may be of steel, though any other suitable material is substitutional,and said side sheets are refarance. In Fig. :1, eachside sheet pressing 1 simulates a' pair of stilesl, a top rail 3, a bottom rail 4,1m upper intermediate 'rail 5, a lower intermediate rail 6, and a rails, 3, and 6, respectively, `are panel yopenings adapted to receive lass or other panels 8, hereinafter more fuly referred to. Outlinin the Adoor side sheets 1 and the openings or the glass panels 8, are' d'epressed flanges 9, those portions of said side sheetsl, which connect-flanges 9 with the side sheet portions thatlie in the plane of the stile and rail outer surfaces, forming shoulders. The space between the flanges -9 of the sheets 1, `which latter are spaced A outer borders of side sheets 1 from "a point withinl the stile or top or bottom rail por tions to the outer edge of the flange 9, eX- tending outwardly 'from that point, and

said anges are connected at their inner ends by the web `of the channel. A y The Z-shaped channel ilanges, in addition to conforming to the borders of side sheets 1, contact therewith, and those portions ed incident with flanges 9 are secured thereto, preferably by spot-welding, as indicated by the shaded spot a in Fig.,10. Y A

Channels 10 extend substantially the length of the sides of side sheets 1, to which they are applied, and may be mitered or not at their oints of intersection, formin a rigid sti ening and strengthening oor edge-outlining rame;

. The openings `for the removable anels 8 are similarly/einforced by a pane outlining frame, comprisin channels 11 which may be duplicates ofc annels 10, except inl respect to the upper intermediate rail 5.\

The latter being-common to the upper and intermediate panels,and in each side sheet'v 1 being provided with upwardly and downl wardly projecting flanges 9, a simple channel 12 is employed to connect the upwardly extendin flanges of the pair of side sheets,l and anot er channel 12 with reversely directed flanges connects the downwardly projectinganges 9. of said side sheets 1, as

. shown 1n Fig. 2 and 3.

As illustrated, the vertical channels 11 may hecontinuous from the` to of the upper panel to the bottom of the lntermediate panel, and channels 12 associated with ythe upper intermediate rail may extend between and abut thesame. In this manner the vertical channelsll will not be weakened by cutting, though where considered prefer# able, channels 12 may be mitered into vertical channels 11, as are the intersecting honzontal channels 11,

vrespective sides of the openin molding The inwardly depressed portions of the flanges of. all of the channels 11 and the flanges of channels 12 are spot weldedto the -inner flanges 9 of side sheets 1,' as partially indicated at b, in Fig. 10.

To one of the door sheets 1 is secured a -and panel-outlining .frames to bothv side sheets 1,'.the said sheetsv are moved parallel to each other to cause the U-shaped strips 13 to entei-` the sockets referred to and lap strips 14. Thus,the lower part of the door may be strongly reinforced.

,From the' foregoin v1t isi-evident that the door is provided wit apair of spaced but conterminous side sheets, su`plied with 'openings for;V removable pane s, and that said side sheets are preferabl connected together by the interpositin o door edgeand panel-opening edge outlining frames. It is also apparent that the v'welding of the flanges of the outlining' frames to the flanges of the door side, sheets and the reinforcing olf panel-7 produces 'a' substantial basicdoor structure. From the foregoing .and the drawings, vit is' clear that said basic door structure does not constitute a complete door structure, and door-edge-formin members are applied to the channels, 10o said door 'edge-outlining frame to yform com onent parts thereof, to close the-sides of sai channels and to provide the door with suitable door edges. These edge-forming members are hereinafter referredv to as the door hanger, edge-formin strips, guide ystri finger guard and finis ing strip# Channe s 11 and 12 of the anel-openin edge outlining frame are c osed by mo din frames complementing said channels 11v an 12.

Fitted around each opening for a removable panel is a molding frame, by choice i i constructed f of pressings suitabl into an integral unit,' as b wel ing them together. Said molding rame pressings are illustrated as comprising top, bottom and slde strips 15 of less length than the the partly outhne, and corner pieces 16 a apte to connect the justaposed ends of adjacent moldformed ame.

Stri s 15 and corner pieces 16 each have space parallel flanges arranged to lap and contact with those flanges 9 of the side sheets 1 which outline thepanel openingin ving strips thus completing the circuit' of the i the basic door structure into which the mold- Y.

ing frame is introduced. Extending inwardly from their flanges, the'components vof the molding frame are beveled onV one side to a desirable depth, from which point to their opposite flanges they are of angular cross-section.

The beveled'portion of each corner piece. v16 may be provlded with 'appropriate radii, as shown, to improve the lines of the door, but, where this refinementis not cared fior,

the molding strips 15 may run the entire lengths of their respective sides and be mitered, the corner piecesv 16 being in such case' omitted.

That portion of each molding frame -which is ofv angular cross-sectionv forms, o n

the side of said frame opposite that having the bevel, a depression 15* for the reception of the glass or other removable panel 8 and cushioning stri s 17, which latter may well be composed o felt, and be of U-shaped or other cross-section to embrace the edges of the removable panel 8, which it surrounds.

It is advantageous to have this depression 'il vertices of their inner and outer right angles, to facilitate the putting of the mold-A ing frame into place, Fig. 6 disclosing one way of doing thls. f v

To conform to good manufacturing practice, -the strips 15 are pressed in a wellknown and simple manner as units, but the corner pieces 1,6, as shown in Figs. 7 and 8, are economically produced in two pieces 16I| and 16",l the former being provided with a lip 16, which laps the inwardly extending fiange of part 16", and is spot welded there. to, as indicated atl c in Fig. .7.

Strips 15 and corner pieces 16 are butt welded, or welded. transversely of their joints, as by the oxyacetylene method, re- -solving all of the molding frame arts into a unitary structure. See places in icatedby d, articularly in Figs. 2 and 6. f

hose anges 15b of the strips 15 and corners pieces 16, of the molding frame, which are adjacent the outer opening of the depression 15, are in a plane inset from the outer surfaces of the stiles, and rails, and with the shoulders 1Il of said stiles and rails form a second depression.

Within this second Ydepression is placed a panel-retaining frame, comprising sub stantially flat retaining strips 18 and corner pieces 19, the vcross sections of which are 'shown to be rectangular and of materially greater width than thickness. It is, however, evident that these members, and also those of the molding frame, may partake of other sectionsl than those shown, and, when the removable panels 8 have a suitable transverse disposition, be given the contour of any classical or other molding.

Corner pieees`19 of the retaining frame I are usually supplied with an are on theiry limer sides, corresponding 'in dimensions to those of the lesser radii of the beveled cor- 'ner pieces -of the molding. frame, and the horizontal or cross yretaining strips 18 are,

Aordinarily welded, as a't e in Fig. 5, to corner pieces 1.9, but the upright retaining strips are not so united. Greater conven ience inapplying and removing the retainin frame is thereby attained through the re uctionvof the numberof separate parts.

Removable panels 8,' their cushioning strips 17 and the retaining frame just descri ed are firmly held in place by screws 20, which pass through strips 18 and corner pieces "19 of the retainingv frame, the contiguous vflanges of the molding frame, the

-. flanges 9 which contact with the latter and into the lapping portions of the Z-shaped anges of channels 11, which channels have sulicient thickness to be tapped to receive the screws. Screws 20 are usually of the type known as French screws, as are all the screws vused in the door which are visible, this adding tothe finished appearance of said door. v

The doors illustrated in the drawings beingof the sliding type, a suitable hanger is provided. As shown in the formsof Figs. 1 'and 12,l it may comprise a bar 21 practically 'ce-extensive with the width of the door, and

having approximately its lower half invserted between the upwardly extending, `more narrowly spaced, portions of the Z- shaped flanges of the channel 10 paralleling the upper edge of the door. At the same altitude, and on reverse sides thereof, the "bar 21 is provided with raceways 22, shown as running the length of the bar. The raceways are designed to receive properly supported and retained balls, arranged on opposite sides f hanger bar 21 to furnish an anti- -vfriction support for the door.'

- Angular-shaped edge-forming strips 23,

also substantially co-extensive with 'the width of thedoor parallel the upper edge extend therea ove, and

of to rail 3 an llas -a horizontal flange, the edge of each - which'abuts one side of bar 21. Edge-forming strips 23 are located 0n opposite sides of said hanger bar and preserve the lusual rectangular cross section of the ltop portion of the door,

Countersunk screws 24 pass alternately zontal c annel 10, the inserted part of han er bar 21, the other flange of channel 10, t e flange 9 of the other s1 e sheet llandflao into the ller on 'the opposite side of the door. Hanger bar 21 and the other parts comprising the top edge of the door are thus firmly bound together.

As seen in -Figs. 3 and 9, the upper edge of one side of the door is provided with a suitable weather strip comprisinga 'metallic holding strip 26, secured, as by welding, to y and along the top edge of the door, and a flexible strip 27, of such material as'carpet..V

The bottom edge ofthe door is furnished with a guide-stri 28 zo-extensive with the bottom rail 4. cally arranged flanges which lap thelowermost flanges 9 of both side sheets/1, screws 29'passing through said guide stri flanges, the speciied flanges 9 and the 28 in place. The latter also possesses a downwardly projecting tongue 28EL ada ted to slide in a groove in the usual thres old plate (not shown).

When the door is usedk in a railway car employed in a subway or ytraction service, where hasty entrances and exits by passengers is customary, there is an ever-present danger of impulsive people attempting to leave or enter the car as the door isV closingl Far too frequently thisresults in the hand of the eager person bein Acaught lbetween the edge of the door and its jamb, y

or between the edges of companion doors, where a pair are used. And, if said person is on a platform, .he is in imminentperil of "being forced to run with'the car, with the ultimate possibility of being thrown and sustaining `serious injuries or loss of life.

To avoid such contingencies, the outer vertical edge of the door is supplied throughout its length with a, finger guard 30 of relatively soft and compressible material. 'llhis finger guard may easily be constructed, say, of rub er sheet bent to have a til-shaped cross section, and with the borders of its open side arranged each to lap one of the anges 9 which outline the side sheets 1v along this side of the door.

Clamping strips 31,\each with an inturned flange along its inner edge adapted to abut the shoulder which roduces the line of demarcation between t e outer edge of the ad` jacent stile 2 and its flange 9, are shown as.

aidguide strip, has verti- Y *y -shapedy `flanges of the bottom channel 10 of the door.- edge-outlining frame, securing guide strip Z-shaped fla aarden these parts being iirmly retained in place thereb Wit in, and near the upper and lower extremities of the finger guard 30, the latter is reinforced by resilient means, as blocks of rubber 33. The positions of said rubber blocks are away from any hand or clothescatching locations, and said blocks take up the jar incident to closing the door.

Along the other or inner vertical edge of thev door, a finishing strip is applied, and it `comprises an outwardly exposed channel member 34 and aninternal anged U-shaped channel 35, both -shown `as equal in length Ato the door height, though channel 35 may comprise a plurality of short pieces united vto channel 34.

The outer or exposedchannel member 34, preferably of drawn steel, and the free borders of its vanges are reversely bent inwardly at an acute angle to the remainder ofthe flanges, and the internal U-shaped channel member 35 is a pressing, by choice, and its anges are outturned and adapted to engage the transverse portions of the Z- shapedianges of channel 10, paralleling this edge ot the door. See Fig." 4.

Both channel members 34 and 35 are preferentially y intermittently united by 'spot' welding, as indicated at g in Fig. 11, resulting in the equivalent of a single member.

In applying this linishing strip, .one of its ends is so registered with an end of its associated vertical channel 10 that said strip may be slid into place, whereupon it becomes interlocked with the specified channel 10. rlhe outturned Hanges of internal channel member 35 lap the transverse portions of the 'es of channel I0, the outer edges of said anges and of flanges 9 of the side sheets 1 abut the web of channel member 34, and the deflected portions of the ianges of channel member 34 bear against said ianges 9 of side sheets 1 and the shoulders outlining the outer edge of stile 2 'on this side of the door.

The iit of the finishing strip to the basic door structure is such that relatively-considerable force is necessary to apply it, and the elasticity ofthe metal of which it is composed is sutcient to allow its application to said basic door structure withoutV undue diiliculty, operating, however, to-produce enough friction to securely retain it 1n lace.

pplied to the exterior surface of the web portion of channel member 34 is a weather strip 36, which may be of felt, of a length equal approximately to the door height, and held in place by a clamping plate 37, screws 38 and reinforcement pieces 39 tapped to receive said screws. Weather strip 36 is pliable and its free ends, while normally extensible transversely of the door are adapted.

to conform to vertical stop plates 40, shown in dot and dish lines in rigs. 4 and 13, and

preferably attached to the car framing (not L are not attachable to such substantial partsas, for example, channels 10 or 11, other reinforcing plates 41, tapped, when necessary,

to receive screws or bolts are provided,

The form of door shown in Figs. 12 and 13 vis constructed much like that illustrated in the preceding figures, except that a single glass or removable panel is shown, and both vertical edges of the door are furnished with finishing strips comprising channel members 34 and 35, the finger guard being omitted.

It is apparent that I have-devised a door easy and inexpensive to manufacture, composed principally of parts which may be produced in general lengths and cut to size for any particular door, and which is thor-` oughly durable and attractive in appearance, and poessing the numerous advantages hereinbefore set forth.

It should be clearly understood that the door edgeoutlining frame, and even the panel opening outlining frame, are not necessary to the construction of a door intended for certain uses, but when the door is likely to receive hard and careless usage, the introduction of these frames into such a door is necessary to insure great prolongation of plementary door edge-formingmembers and a panel-receiving member secured, respec tively, to the attachment means of the first and second mentioned frames, said door edgeforming members being constantly maintained inseparable from said door edge frame in a direction transversely thereof, a panel, and retainin means therefor.

2. In a metallic oor, door edge and panelopening frames, each comprising separate fitted strips opposed to the strips of the other frame, said str1ps having spaced flanges, the flanges of the strips in one frame being oppositely directedto those of the opposing strip of the other frame, opposed unitary door side sheets connected to and connecting both frames, complementary dool` edgeforming members and a panelreceiving member secured to and connecting thev flanges of the first and second mentioned frames, respectively, to close the space between said flanges, a panel, and retaining means therefor.

y 3. In a slidable metallic door, an upper door edge frame member provided with .spaced upwardly directed flanges having depressed borders, door side sheets on opposite sides of said frame member secured thereto and a door edge member projected between the depressed border portions of said spaced flanges and secured thereto and having a -longitudinally grooved portion beyond the outer edges `of said flanges;

4.v In a slidable metallic door, a lower .door edge frame. member provided with spaced downwardly extending llanges having depressed borders, door side sheets on opposite sides of said frame member secured thereto, and a door edge-forming member 'channel vhaving a web and spaced flanges,

door side sheets wholly external to said channel and extending with the flanges thereof toward av door edge, said sheets and flanges being 'inset vintermediate the width of the flanges to form external and internal shoulders, and' a door-edge-forming strip 'y interlocked with said shoulders against separation' from said channel transversely thereof.`

` '6. In a metallic door, door side sheets having inset borders'disposed yabout panel bpenings and extending away from the por- ,tions from which they are inset in planes parallel therewith, panel opening-outlining and -panel-receivmg frames each with vflanges oppositely disposed to those ofthe other frame, the flanges of both frames be' ingcombined with and. parallel tothe inset yside sheet borders.

7. In a Inetallic'dor, a dooredge frame I comprising outwardl strips with ing interna and4 external shoulders, door si e sheets 4 having shoulders and depressed flan es, the latter lapping and being secured opening channel partially epressed ilangeshavto t ev depressed portions of said channel flanges, a door edge-forming finishing member closing one of said channel strips and comprising# an external channel member with inturned flanges adapted to bear against side sheet shoulders and flanges and an internal channel member united to said external channel member and projecting within said channel strip to en age and be retained by the internal` shoul ers thereof, and other edge-forming members closing the other channel strips.

8. In a metallic door, a door edge frame 85 lapping and secured to the depressed borders y outstanding flanges with depressed portions having portions adapted to coperate'with and internal and external shoulders, door side sheets conterminous. with and conjoined to said frame and rovided with depressed yflanges and shou ders conformate with those of said frame, la complementarydoor edge-forming finishing member closing an open edge of said frame and comprising united external and internal members each each other and said rame internall and side sheet external shoulders and'llanges to interlock said edge-forming member. with said frame, and other edge-forming'mem.-V bers closing the other frame open edges..

9. In a metallic door, opposite door side sheets forming registering panel openings, and a molding frame having corner-pieces comprising two parts, each part having lange secured to the panel-.opening-out ing border ol' lone of said side sheets, both parts extending toward each other to meet in a planeintermediate and parallel to their spaced flanges, one part having a lip lapping and united to the other part. 10. In a metallic door, an upper door edge frame member provided with upwardly directed flanges having depressed "portions having flanges and shoulders conformate with those of said frame4 member, a top door edge-closing member partly pocketed within said yflanges and extending thereabove, cover strips inclosing said side sheet flanges and shoulders and having portions` parallel with and. spaced from said side -sheet anges, filling pieces disposed between the latter and said cover strip portions that are spaced fromA said sheet flanges and means securing the parts together.

11.v In a metallic door, a door side vrsheet depressed about appanel opening, a` frame having a panel-receivin depression, a panel positioned therein, and frame set into the depressed portion of said side sheet, bearing against .said panel-rei ceiving frame and having uniform thickness whereby its outer face remains flush with the undepressed portion of said side sheet. r

12. In a metallic door, door edge and lpanel-opening frames, the former having open edges about its perimeter and the latter having flanges directed toward the cen ral portion ofthe door, integral door side sheets :formed to simulater the. characteristic parts of door sides connected to opposite sides of said frames, door edge-forming'members closing said open edges and a panel-receiv ing frame lapping and connected to said flanges.

13. In a metallic door, a door edge fra-me, a panel-opening frame having spaced parand shoulders, doorslde sheets disposed on opposite sides of said yframe member and` a panel-retaining allel flanges delineating a panel-opening, door side sheets arranged on opposite sides of said frames and secured to each frame,

arranged on opposite sides of said frames `and secured to each frame, each side sheet having a panel opening and simulating the Stiles, rails and 4part of theV panels of a l door, a removable panel,l means holding the, -same'within the panel-opening frame, and separate but interlocking linear stitlening members continuously connecting the simulated panels of said-side sheets substantially Ythroughout one of their dimensions.

15. In a metallic door, a panel-o ning..

frame having` inwardly directed anges, door side sheets suitably connected at their` outerborders and having panell openings and flanges about said openings external v,to said panel-opening frame, said latter flanges lapping and being united withsaid l frame flanges, a molding frame comprising flanges lapping said sideV sheet flanges, a molding-contour portion and a panel-receiving depression conforming to said panel` openings, a removable panel, a retaining frame therefor, and means securing the re# tainin frame in position.

16. n almetalhc door,hav;ing a bu'er edge, `a door edge channel havin flanges with depressed borders, opposite d sheets paralleling said flanges along their exterior sides only, 'and a resilient door edge' member closing the space between the channel flanges and having borderslapping the depressed portions of said. channel lianges and side sheets. y

17. In combination inv a metallic door, door edge framing members comprising channels each having an inner web portion 'and outwardly disposed relatively? Z-shap'ed flanges and door side sheets provided with edge flange portions lappin conforming to and being secured to said -shaped flanges.

o'br side I 18. In combination in a metallic door, y

doorl edge framing members comprising channels each having an inner web portion and outwardly disposed shouldered llanges, door side sheets provided `with shouldered liange portions lapping, conforming and being secured to the flanges of said channels and aidoor hanger member connected to said langes.

19. In. combination in a metallic door, door edge outlining frame members having flanges of Z-shape 1n cross section and a con necting web portion, a door hanger member extending between some of said flanges and iso CII

orminig side sheets lapping saididcor hanger memconnected side sheets spaced apart to provide l stiles and rails of predetermined thickness and having outlining flange portions of less thickness, and an outlining frame of channel form in cross section comprising Youtwardl disposed shouldered flanges interlocked wit and secured between the flange portions of said side sheets.

2. In combination in `a metallic door, spaced and flanged side sheets forming stiles and rails of predetermined thickness and an outlining fla e portion of less thickness and an outlining rame of channel form in cross section comprising parallel outwardly disposed flanges which are interposed between the flanges of said side sheets, all of said anges having shouldered portions interlockin when in assembled relation.

22. n a metallic door, a channel member in juxtaposition to the top of the door and having spaced flanges with depressed borders, door side sheets on opposite sides thereof havingrborders conformed to said flanges, a channel-closing-member extendin above the latter, angular strips parallel wit the flange-conforming borders of said sheets and having (portions spaced therefrom, fillers between sai stri s, and means securing the parts toget er. l

23. In a metallic door, a door edge channel member provided with spaced flanges having depressed borders'and external and internal shoulders, door side sheets on opposite sides of said channel member having portions conformate with said flanges, and a channel-closing member comprising united external and internal members gripping said channel member flanges and confermate side Sheet' ortions.

24. n a metallic door, a door edge channel member provided with flanges having inset outer portions and intermediate shoulderportions, door side sheets on opposite 'si es of said channel member having outer border portions paralleling the outer faces of said channel member flanges, and a channel-closing member comprising external and internal channel members, the former having portions bearing against said side sheets and the latter against said door edge channel member at the shoulder-forming portions of the side sheets and door edge channel. f

25. In a metallic door, a door edge con.- struction comprising aplural-it of channel members, each prov1de with of said channels being permanently united,

side sheet borders and angular anges, some door side sheets on opposite sides of another flanges thereof to the flanges of one of said permanentlyy united channels, between the anges' f of both the permanently united flanges and toward the web of the' first specifled of said Apermanently united channel members..`-

26. In a metallic door, a door edge channel providedwith spaced flanges having inset outer borders and shoulder-forming portions, door side sheets on opposite sides. of

of said channels and extending with the said channel having inset edge borderporlel opposing sides, amolding contour portion and a portion of Yangular cross section together connecting said spaced flanges withoutv entering therebetween, one of said-A flanges and said ortion of angular cross section forming a -shapedr subdivision in the ycross section of said molding frame.

28. In a metallic door, structure forming the door except its edges and provided with door-edge-receiving portions parallel to the various door edges, said ortions at the diferent door edges being o uniform construction, different door-edge-forming members .having differently formed portions fitting 'the uniform receiving-portions of said structure, and means loclnng the door edge members to said structure.

29. In a metallic door, structure formin the door except its edges and provided wit uniformly fashioned dooredge-receiving portions parallel with different door edges, different door-edge-forming members having differently constructed portions for interconnection with the uniform receivingportions of said structure, and means preserving the interconnection of saidv structure and door edge members permitting the removal of said members. i d In witness vwhereof I have hereunto set my hand in the presence of two witnesses.

WALTER L. CONWELL. Witnesses.: H. B. CHAMBERLAIN, Josnrn C. DUNN.

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