US1838731A - Door - Google Patents

Description

Dec. 29, `1.931. A. s. BARRows DooR v original Filed Jan. 2, 1924 3 Sheets-Sheet 2 MH. I

Dec. 29, 1931. Y, A, s 'BARROWS 1,838,731

DOOR

Original Filed Jan. 2, 1924 3 Sheets-Sheet 3 l5 la@ 1z0 @il Patented Dec. 29, 1931 UNITED sil-Arias PATENT --i-FICE ALLAN S. BAR-ROWS, OF LOS ANGELES, CALIFORNIA, ASSIGNOR TO YOUNGS'IOWN STEEL DOOR COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO `DOOR, v

Applicationvled January 2, 1924, Serial No. 683,881. Renewed' Gctober 21, 1929. i

` This invention relates to improvements in cai` doors. p

@ne object of the invention is to providea Acar door of the outside sliding type, and

every direction is obtained.'V y

A further object of the invention is to provide a car door of 'the`double, outsideV sliding type especially adapted for boX cars used in the transportation of automobiles, furniture and other articles of large size.

Another and more specific object of the invention is to provide a door construction, wherein the front edge thereof is so constructed and braced, in combination with in-A expensive fixtures used therewith, as to pro-v vide unusual strengthv against lateral thrust.

Other objects and advantages of the in- "vention will more clearly appear from the description and claims hereinafter following;`

In the drawings formingv a part of this slieciiication, Figure 1 is a side elevational view of `a portion of a car showing `my 1in` proveniente in connection therewith, as applied to a single sliding door,'parts 'beingbroken away in order to better accommodate the figure to the sheet.

Vresponding substantially to the section line 2-2 of Figure 1.V Figure 3 is an enlarged, vertical, sectional view corresponding substantially to rthe section line 3--3 ofFigure Ll. Figure l is an interior side elevational view of a portion of a caigshowing my improvements inc'onnection with adouble sliding door construction, parts being broken awayV in order to better. accommodate the figure to the sheet. Figure 5 isan enlarged detailed, f

vertical, sectional V,view corresponding substanti ally to the line 5 5 of Figure 4'. Fignre G isV an enlarged, horizontal, sectional view coi-responding substantiallyto the line ii3 of Figure 7. Figure 7 is an exterior, side, elevational view of the adjacent ends of the front and rear members of 4a portion of the double sliding door, shown in Figure fi. Figure 8 is a view similar to Figure 6 illustrating a different embodiment of the invention.` Figure 9 is a detailed, perspective Figure 2 is an enf larged, broken, horizontal, sectional view cor-` view of a wedge element used in connection with the improved double door construction; and Figures 10 and 11 are horizontal, sectional views illustrating further embodiments of the invention relating to the end construction of the doors.

Referring first to the construction illus-V tr'ated in Figures 1 and 2, 11 indicates the usual side facing boards of a boX car, 17 one of the postsror jambs at the rear edge of the door, and 18 the post at the opposite side of the door opening.`

In thev arrangement shown in Figures 1 and 2, a single outside door is employed, designated A. `The door A is of the top hung type being, preferably, provided with a pair Zebars 21, the Zbar at the top of the door coacting with the track 2O so as to prevent the door from moving outwardly with respect to the track.

Suitable means of the type disclosed in my co-pending application, Serial No. 611,243, iiled January 8, 1923,is preferably provided to prevent the lower edge of the door A from being swung or pushed outwardly, comprising a series of guide brackets 22, 23 and 24, each of which is provided with an upstanding ilange -25 having cani surfaces cooperating with wedge brackets 26 secured to the door. -The door is preferably provided with two Vof these wedge brackets 2G, one at each end of the lower edge of the door, as

clearly shown in Figure 1. When the door is closed, the respective brackets 26 will engage behind the guide bars 24 and hence pre-V tically along the outer face of the door A at Y the rear edge thereof, secured to the door* by any suitable means, such as rivets or bolts and the other flange 31 overlying the rear edge of the door. rl`he vertical edge portion of the flange 31 is preferably bent to hook shape, as indicated at 131, so as to engage over the projecting edge 32 of a wear plate 132, applied to the exposed faces of the post 17. In this manner a spark and weather seal is obtained for the rear edge of the door A.

At the front edge of the door A, a special construction of great strength is employed. The same comprises a vertically extending metal. strip 33, a section of angle bai-,a strip 35 and a second section 36 of angle bar, as best shown in Figure 2. The angle bar has an outer relatively narrow flange 3T extending parallel to the side wall of the car, and to which is riveted or otherwise rigidly secured the strip 33. rlfhe an gie bar 36 has an elongated leg 38 extending transversely ofthe car and to which one leg of the angle bar 35 is riveted or otherwise rigidly secured, as indicated at 39. The strip 35 is secured to the inner edge of the other leg of the angle iron 35 inwardly of the vertically extending front edge of the door, diverging outwardly from said door and being secured to the edge of the leg of the angle iron 35 that is in turn secured to the angle iron 3G. t will be observed that the other leg of the angle bar 35 secured to the main portion of the door A, at the front end thereof, by suitable means such as rivets or bolts 40, which also serve to secure the strips 33 and 35 to the outer side of the door.

1V ith the construction described, it will be observed that l provide an exceedingly rigid and strong front edge for the door A, the same forming a tubular, substantially triangular, horizontalv cross-section with the inner face of the door, including a pair of protecting over-hanging marginal flanges, one extending forwardly and consisting of two plies of metal 33 and 37 and the other extending laterally and consisting of two plies of metal 35 and 33. rilhis construction is especially adapted to resist bending from thrusts exerted transversely outwardly from the interior of the car, to resist bending from thrusts imparted parallel to the side wallv of the car, and also to resist bending or thrusts exerted inwardly against the door.

T he post 18 has the exposed faces thereof protected by a wear plate 41, secured by bolts or any other suitable means passing through the post and flanges on the wear plate. A vertically disposed angular strip 41 is secured to the outer side of the car at the frontedge of the door opening, and adapted to coact with the double ply edge of the door A, to provide a weather or spark seal, the double ply edge being so disposed as to overhang the rear flange of the angle strip when the door is in closed position, as clearly shown in Figure 2. rlhe strip t1 is preferably seeured directly to the wear plate il and is held by the same bolts that serve to secure the plate 41.

Referring next to the construction illustrated in. Figures 3, 4, 5, G and 7, 11() indi cates the usual side plate of a box car, 111 the side facing boards, 112 the door lintel, 113 the floor boards, 114 the threshold plate, 115 the car side sill and 11G the supporting block for the extended floor boards. The door openin g is provided 'ith posts or ambs at the front and rear ends thereof in all respects similar to the jambs or posts 17 and 13 hereinbefore described. In this connection, it is pointed out that the structure of the car adjacent the door opening in Figures 1 and 2 corresponds in all respects to the construction shown in Figure 3, as hereinbefore described.

In the construction illustrated in Figures 3, 4, 5, 6 and 7, two sliding outside doors are employed in connection with a large door opening, one of which may be termed the main door and designated B', and the other a Vsomewhat narrower door, which may be termed a secondary or auxiliary door, which is indicated by the reference character A. The doors A. and B are of the top hung type, cach being preferably provided with a pair of roller carrying brackets 118 similar to the brackets 1S hereinbefore described and each having ay roller 119 which rides upon the Z-bar track 120, the brackets being so formed that they clear the outermost flanges of the track, and each door having its top and bottom edges provided with longitudinally extending Z-bars '121 of a construction corresponding with the Z-bars 21 hereinliefore described. The Z-bar at the top of the door has the one arm thereof abutting the outer surface of the door, the central section abutting the upper edge of the door and the remaining arm extending upwardly in alinement with the rear surface of the door and inside of the outermost track flange so as to thereby prevent the door from moving outwardly with respect to the track. The Z-bar at the bottom end of each door also has an arm and the intermediate section thereof abutting` the outer surface and bottom edge of the door respectively, the remaining arm of the' Z-bar being in alinement with the rear surfaces of the door and projecting downwardly therefrom.

The main body portion of the door B is preferably constructed of wood braced on the inner side by a centrally disposed longitudinallyextending member 127 and two pairs of diagonally extending members 12S-123. The' front end of the Vdoor B which is the end adjacent the door when the doors are in closed position` as shown in Figure (3. provided with a vertically disposed Z-bar 1li-2, applied to the exposed faces of the rear edge, andl the outer side thereof, in such a manner that one leg and the intermediate porspectively and the other leg projects from the door in a plane parallel to the i'ear side thereof toward the adjacent edge of the door Ar.

The har 142 servesas a protecting wear plate for the door B and the projecting leg-coacts with the front edge ofthe door A' to provide i a Weather and spai'kseal. Theopposite .or rear end of the door' B is of a construction i identical with that of the rear end of the door A, as shown in Figure 2, being provided -With a. strip similar to the strip29, cooperating with a Wear plate similar to tliejplate:132`

.iber 127 and two pairs of diagonally extending members 123--128. The door A' is otherwise of a construction substantially the same as the door A, with the exception that the frontend thereof is provided vwith a post or block 143 and the angle bar 35 of the door A is replaced by a strip 135. V,In Figure 4, Which shows the entir-e door A' and Figures 6 and 7 which sho7 thefrout end portion only of the same, the front edgecomprises a kvertically extending metal strip 133, a second strip 135 and a section 136 of angle bar hav-V ing a relatively narrow flange 137 andan elongated leg 138.

The elongated leg 138 of the angle bar 136 ,extends transversely of the car and has one edge of the strip 135 rigidly secured thereto as indicated at A139. It Will be observed that the other leg of the strip 135 is ksecured toA the main portion of the door A'V ata vpoint l inivardly of the-'front end thereofby any suitable-means, such as bolts or rivets',vwhich also serve to secure the strip 133 to the outer side of the door, and -that theV strip 135 vis extended angularly inwardly from the main plaiieof the door. As best shown in Figure' 3, the flange lo( ofthe section v136 extends for the full length of the door A', but the leg 138 and thestrip 135 terminate a short distance above the threshold and below the door lintel.

lli/'ith the construction described, it Will be observed that I provide what may be termed a tubular edge at the front edge of the door A', said tubular edge-being .of Vsubstantially Vtriangular horizontal section and provided n with a protecting overehanging 'marginal flange, consisting of tivo plies` ofi'metal 133 and 137. This construction is especially adapted to resist bending frointhe thrusts exerted transversely outwardly-from the interior of the car., to resist bending vfrom thrusts imparted parallel to the sidewall of the car and also to resist bending or thrust exerted inwardly against the door. rThejpro- .jecting arm ofthe Z-bar 142km the door B' is adapted to coact Withithe double'ply edge 133-f-l137 of the door A' to provide a Weather or spark seal, the double ply edge being so disposed as to 4overlningthe leg of the Z-bar when the door is 1in closed position, as clearly shown iii-Figure-G.

The elongated leg 138 of the angle section 136 providesa suitable support for the heavy block 143, which may be bolted 'to the angle sectioii'asrindicated at 144, the inner face of the block 143 being in line with the inner face of the post of the door opening atthe rear end of the auxiliary door, corresponding to the po'stl, shown in Figure 2. There the auxiliary door A'! is not required and when it may be left for a considerable time in itsA closedV position, thedoor A' may be locked in-a closed position-and boards nailed tothe post atV the end ofthe door opening corresponding to thev post `land tothe block 143 to continue the inner sheathing of the car.-

Suitable means is preferably provided in orderito prevent the front edge of the dooi A' from being sprung outwardly, said means comprising Wedge castings 158 secured to the post 143 and Wedge castings 159 secured to the lintel and threshold respectively. One ofthe Wedge castings 158 is shown in detail in Figure9 and is in the formof a substantially rectangular plate 160having spaced side flanges 1611-161 projecting-at right angles therefro1n, by Which thecasting is Asecured to the post 143, the-flanges of the plate straddling the post and being provided withalined openings adapted to receiveV securing bolts 162 extending through thepost.` As shown in Figure 9, each ofthefianges 161 is preferably provided Witli three bolt receiving openings. On vtheside of the plate 160 opposite to 'theiianges 161 is provided -a.,wedge` projection. 163 adapted to cooperate with a similar vwedge projection on one ofthe Wedge castingsv 159. The castings 158 are preferaoV ably two in niunber, one being fixed to the i upper end and; the oth'er tothe lower end kof the .post 143, and each coacting with onei of the vve'dge castingsl159. The Wedge cast-v ings 159 are of similar construction,each comprising a fiat plate providedwith a VWedge projection 164 similar to the projection 163 of the plate 158 but reversely arranged and coacting therewith -to fore-e the door inwardly toward the car Wall When the saine is moved to elosedposition.V

In the double door construction just deings 126 similarrto the' brackets v22,23 and 24 and wedge castings26 are provided, theV` construction and arrangei'nent being thesarne as that disclosed in the copending-'application referred to, the rearloiver corner of the carried bythe car body, andthe frontlower 1120 scribed, guide brackets 124 and Wedge casti corners of each of the doors A and B', that is, the two meeting corners when the doors are in closed position are illustrated in Figure 1 7. preferably being provided with a single `wedge bracket. The wedge brackets 124 are cut out as shown in Figure 3 toaccommodate he downwardly projecting leg of the Z-bar 121 at the lower edge of the door. When the doors A and B are closed, the respective .wedge castings will engage behind the ad- :a gravity controlled latching mechanism to lock the same in closed position.

T he iatching mechanism comprises, broadly, a pivoted latch C; a retaining member D; and a socket member E iXed to the door.

The latch C, as best shown in Figure 5, is in the torm of a flat plate, having upwardly diverging side edges 42 and 43, a convex top edge 44 ot a curvature of relatively great radius, and a` convex bottom edge 45 of a curvature of relatively short radius. The side edge 42 is et greater length than the side edge 43 thereby providing a toe portion 46 adapted to coact with the socket member E. Upon reference to Figure 5, itwill be noted that the toe portion 46 is adapted to engage within the socket member E to hold the door in locked position. The latch C is recessed as indicated at 47 fora purpose hereinafter described, the recess 47 being provided with a pair ot diverging side walls 48 and 49. At its lower end, the latch C is provided with a pivot opening concentric with the convex lower edge face 45 of the latch adapted to receive the bolt 50 by which the latch is pivotally mounted. To provide means for withdrawing the latch C from its locking posi-A pivot opening at-the lower end of the latch and receiving the bolt 50. The upper end portion of the retaining member D is iiXed to the post 17 by means of a bolt passing through the boss 52.

As clearly shown in Figure-5, the latch C is swingingly mounted on the post 17 by having its lower end pivoted on the retaining member D by means of the boss 58, the boss 52 extending into the opening 47 and the body portion of the retaining member .spanning the space between the pivot opening at the lower end of the member C and the open-V ing 47, holding the-latch in position against lateral movement away from the post and forming aguide for the same. rl`heboss 52 is adapted to coact with the walls 48 and 49 ot the recess 47 to limit the swinging movement of the latch C, both in an upward and downward direction. In the lowermost position of the latch C, as shown in full lines in FigureA 5, the wall 4S) is in abutment with the boss 52, holding the toe ot the latch in its lowermost position. Upon the latch being raised, the wall 48 will limit the upward movement of the same by engagement with the boss 52, the limit of the upward movement of the latch being indicated by the dotted lines in Figure 5. As will be evident, the

. boss 52 is fixed, being so positioned with ret'- erence to the pivot point of the latch that it will arrest the upward movement of the latch with the center of 'gravity of the latter located to the leftof the pivot as seen in Figure V5, thereby assuring the automatic return of the latch to its lowermost position.

rllhe socket member E is of generally rectangular outline and is provided with a continuous flange The socket member E is set into the brace 127 as clearly shown in Figure 5, being secured thereto by screws, or any other suitable fastening devices passing through the flange as clearly shown in Figure 4. As will be evident upon reference to Figure 4, the socket member E is spaced the proper distance from the rear end of the door to permit the latch C to drop into the same when the door is closed to hold the door locked in that position.

The operation of the automatic locking` mechanism is as follows, assuming that the door is being moved from open to closed position. At the beginning of the sliding movement et the door, the latch will be supported by the toe thereof engaging with the inner flat surface of the brace 127, and during the sliding movement of the door will ride on the brace 127.Y In the sliding closingl movement Vof the door the socket member E is brought into registration with the latch, whereupon the latter will drop into the socket due to the influence oi" gravity, thus automatically locking the door in closed position.

To unlock the latching mechanism, the t e 46 of the latch C is withdrawn from the socket member E by raising the latch C to the dotted line position shown in Figure whereupon the-door is free to be moved to open position. In the operation of opening thel door whenl the socket member E has passed beyond the latch C the latter due to the influence of gravity drops into position in front of the socket with the toe engi ging the brace 27.

Referring to the embodiment of the invention'disclosed in Figure 8, the construction is in all respects similar to that shown in Figures 4, 5, 6 and 7 with the exception that the door A2 corresponding to the door A is not provided with the projecting fiange 137 and does not have the strip 133 projecting beyond the edge of the door, the strip 13? placed by a single angular section secured to the outer face of the door fand extending over theedgeat the frontofithe latter.- l

Theconstruction showinV in `Figure 8 comprises`,amain door B2 and an auxiliary `door A2. Themain door B2 is inallrespects similar to-the door A'Bshow-n inFigures Sand 7 with the `exception that the 'Z-bar 142fisreplaced by anj'angle stripl242 appliedl to-the exposed face of theA frnftedge andthe outer side thereof. `The frontedgeof the door 'A2, which is the edge-adj acentthel door B2 when thedoors arein closed position, comprises a strip 235 *identical with the strip 135 shown in Figure :6, and asection of Vangle -bar 233 having a relatively wide flange 233 secu-redto the outerl face of the door byfboltsor any other suitable fastening devicesl and.` an elongatedl leg 238 abutting thefront edge of 'the door and having itsfinner edge portion riveted to the inner edge portion of the strip 235. The elongated leg 238of the angle section236` provides a support for a block 243 similar to the block 143 shown in Figure 6. When the-doors A2 and B2 are in closed position, the: edges of the sameabut with the flat front face of the strip 242abutting the flat faceof the'leg238. x Y.

Referring next to the embodiment of the invention illustrated in.` Figure 10, the con struction is similar to that shown in AFigures 1 and 2 with the exceptionthattherfront edge of the door is ofa somewhat different design. In FigurevlO, 318 indicates the'door post at the front .end ofthe 'door opening, 141 the wear plate.` and 141 the` angular. strip secured to the outer sideofthe car. 'Ihe sinfrle outsidedoorzis designated by A3, the rear edge `of which-lis of a construction'identical with thedoornA. The'front edge of the .doornAt comprises. a vertically disposed metal strip 333` and Vasectionpof Z-shaped strip 336. iThe Zstrip hasla narrow and a relatively wide lange-337 and 338extending parallel to thefside wall of the car. ,TheZ- strip has the `flange 338 lying flat against'the inner surface` of thedoor, and the portion intermediate the flanges abutting the ,front edge of the same. The outer-face of the flange 337 lies inthe plane of the outer surface of the door andis riveted or otherwise rigidly secured to the strip 333. Bolts340 or anyf other suitable fastening devices: serve to secure the strips 333` and 336 tothe door.` In this connection, it Awill be notedthat the two-l ply projecting.` portion 333. and 337 coacts with the angle strip 141 ina manner similar to the parts 33, 37'and 41 shown in Figure2, to form a sparkan'd Weather seal.

' Referring next to the embodiments of the invention illustrated in Figure 11, theconf struction is also similar to that shown in Figures 1 and 2,` with the exception that the frontedge of the door is of'somewhat different desigiiand'the outer side of the car adj'acentxthe` front edge of the door is provided 'withrlan angle strip arranged re"- versely toV therangle strip 41 shown in Figlure 2. i In Figure 11, 418 indicatesthe door post'at the front end 'of the door` opening and 441 the'fwear plate.` The single-outside door is designated by A4,`the rear edge of 'which is'of a construction identical withthe door rEhe front edge of the door-1A?"` com;- prises two vertically disposedv Vangle lbars 433 and 435 secured respectively to the outer and: inner surfaces of the door. The angle bar 433 has a relatively wide flange434 lying flat against the outer surface of the door and an elongated leg 438 extending inwardly, transverselyv of the car and lying flat against the front edge" of `the door. The angle bar 435 alsohas a relatively wide iange 436, lying fiat against the inner surface of the door and a leg 439 extending inwardly, transversely ofthe car and lying 'fiat against the @leg 438 and'rigidly'secured thereto in any suitable manner. The parts 438 and'439provide a iiange of two-ply metal. |Ihe flanges ,434 and 4350i the bars are fixedto the-door by anysuitable means such as bolts 440'extending therethrough. A vertically disposed angular strip 441 is'secured to the outer side ofthe car at thefront` edge of the door opening, being fixed to the Vpost 418 by one of its flanges and having the other `flange project'- ing outwardlyl from the post with the face thereof nearest the 'door in substantially" the same plane as the inner transverse face of the postV andV adapted to coact with and overhang the front edge of thedoor to provide a weather or spark seal. v .Y It will be evident that my invention is not limited tothe use of the yvarious designs of front edges of doors shown in Figures 2, 10 and 11 in-connection with single doors, but that thesame may be 'employed equally well in connection with a rdouble door vconstruction of the type illustrated in `Figures 3-to 7 inclusive. t willi alsobe evident thatthe designs of` front edges ffor `doors shown,"in Figures 3 to 8 inclusive, as applied todouble doors may be employed equally well in connection with single doors. Y

I have herein shown and described what I now consider` the preferred manner of carry` ing out `the invention, but the same 4is mere.L ly 4illustrative and I contemplate all changes and `modifications that come within thescope ofthe claims vappended hereto. f

lgclaimz.: Y i

1.. In a car door, Athe combinationv with a mainwoodendoor portion; of a front edge portion for said wooden portion comprised of fabricated metal, said metal including certainrparts arranged with reference to the wooden door portion as to .provide a hollow tubular formation. Y. v

2. As an articleY of manufacture,vv ua door having the main portion thereof formed flat and provided along one vertical edge with a flat metal strip; a metal strip secured to the main body portion of the door at the inner side thereof inwardly of said edge and diverging from said body portion; and a metal member rigidly connecting the edges of both of said strips.

3. As an article of manufacture, a door having a main body portion and provided on one side thereof along one vertical edge with Y a flat metal strip extending beyond said edge; a metal strip secured to the main body portion of the door at the other side thereof inwardly of said edge and diverging from said body portion; and a third metal member secured to the free edges of said strips.

4. As an article of manufacture, a door having the body portion thereof formed flat and provided along the vertical edge at one side thereof with a flat metal strip extending beyond said edge; a metal strip secured to the main body portion of the door at the other side thereof inwardly of said edge and diverging from said body portion; and a third metal member secured to the free edges of said strips and spanning the space therebetween.

5. In a car having a door opening defined in part by posts, the combination with a slidable door having a front edge composed of fabricated metal and forming a substantially triangular cross section with the inner face of said door, said fabricated front edge including a portion extending beyond the front edge of the door proper and spaced from the side wall of the car, a strip connected to said portion and extending substantially normal to the main plane of said door, and a member connected to said strip in spaced relation to said portion and connected to said door, of a vertically extending member secured to the side of the car adjacent the front end of the door opening and having a projecting flange adapted to coact with said projecting edge portion to form a spark and weather seal.

6. In a car, provided with a side wall having a door opening therein, the combination with a slidable door having the front edge thereof composed of fabricated metal and forming a triangular cross-section with the inner face of said door, said fabricated front edge comprising a vertically extending strip secured to the outer side of the door and projecting beyond the front edge of the main body portion thereof, a strip secured to the inner side of the door inwardly of said main body portion edge, and an angle strip secured to the free edges of said first and second named strips, one arm of said angle strip being disposed in flat face-to-face Contact with the projecting portion of said first named strip and forming therewith a double ply edge portion; and a metal strip secured to the outer side of the said wall adjacent said door opening and coacting with said double ply edge to provide a spark and weather seal.

7. In a car provided with a side wall having a door opening therein, the combination with a slidable vdoor adapted to close said opening, said door having the front edge thereof fabricated of sheet metal and forming an approximately triangular, tubular cross-section with the inner surface of said door, said fabricated front edge including a two ply metal ange extending beyond the front edge of the main body portion of the door; a vertically extending strip secured to the outerside of the car Wall adj ajacent one end of said door opening and having a vertically disposed outwardly projecting flange, said strip coacting with said two ply flange of the door to form a spark and weather seal; and coacting means on the side wall of the car adjacent the other end of the door ope-ning and on the adjacent end of the door, when the door is in closed position, providing a second spark and Weather seal.

8. In a car, the combination with a main sliding'door; of an auxiliary braced sliding door, the latter having the front edge thereof composed of fabricated metal and forming a substantially triangular horizontal crosssection with the inner face of said door; and a block secured to said front edge and adapted to over-'lap the adjacent edge of the main door when the doors are in closed position.

9. In a member having a door opening defined in parts by posts, the combination with a main sliding door; of an auxiliary braced sliding door, the latter having the front edge thereof composed of fabricated metal and forming a substantially triangular cross-section with the inner face of said door, said fabricated front edge including a portion extending beyond the front edge of the main body portion of said door and coacting with the adjacent end of the main door when the doors are in closed position a block secured to the front edge of said auxiliary door and adapted to over-lap the adjacent edge of the main door when the doors are in closed position, said block and edge of the auxiliary door coacting with the adjacent end of said main door to provide a spark and weather seal.

10. In a car, the combination with a sliding door having a longitudinally extending bra-ce; of means carried by a car body adj acent the rear edge of the door, when the latter is in closed position, cooperating with said door for automatically locking it in closed posititon, said means including a gravity actuatedlatch member, and a socket member mounted on the door and disposed outside of the inner plane of the bra'ce.

l1. In a ear, the combination with a sliding door; of a brace extending longitudinally of the door; a socket member seated within said brace rigidly fixed with reference to the door and spaced from the rear edge thereof;

llO

ine bevond the edge thereof' a second metalV .Y n D strip secured to the inner side of the door; and a third metal strip secured to the 'free edges ot sai-d lirst and second named strips and lying dat against the adjacent edge of e door. 13. an article of manufacture, a door having the main portion thereof formed flat and pix, Sided along one vertical edge at the enter side thereof with a fiat metal strip; an e bar having one arm secured toi said strip to provide a two-ply flange and having the other arm extending transversely, inivardly of the car beyond the rear face. of said door; and a third metal member having one end secured to the main'bodv of the door Y and the other end secured to said inwardly extending arm to provide a two ply flange.

le. in a car having a door opening dened in part by posts, the combination with slidable door having aront edge composed .Il

o iabriwted metal arranged withrreference t l do. so as to provide a hollow tubular i" Lon substantially triangular in crosssection, said fabricated front edge including a portion extending beyond the front edge or the door proper and spaced from the side wall ot the car; of a vertically extending member secured to the side ot the car adjacent the iront end orp the door opening and having a projecting flange adapted to coact with eaid projecting edge port-ion to form a spark and weather seal.

l5. fr car door comprising a wooden body portion, having the. front edge thereof comoi" fabricated metal, said metallic edge n including a vertically arranged meniber liviosed substantially at right angles tov the i inplane of the door, and extending inwardly of said plane to provide means to which a grain closure may be attached when the latter is applied on the inner side of said door, said member overlying and directly bearing against the front edge of the wood portion. Y

1G. A car door, comprising a wooden body portion, having the front edge thereof comfabricated metal embracing the posed t front edge and inner and outer faces thereof, said metallic edge portion including a vertically arranged member disposed substantially at right angles to the main plane of the door, and extending inwardly of said plane to provide means to which a grain closure Ving the latter.

may be attached when the latter is applied on the inner side of said door; and means extending from a point spaced from the front edge between said main body portion and said vertically disposed member for brac- 17. A car door, comprising a main wooden body portion, having a metallic edge including a metallic element extending substan` tially perpendicularly to the main plane of said body portion; and means for bracing said member against rotation about its longitudinal axis with reference to the main body portion ot said door, said meansvextending diagonally from the wood portion to said memberand attached to the latter inwardly of the inner plane of the wood portion.

1S. In arcar, the combination with a main sliding door and an auxiliary wooden sliding door having a metallic construction at its 'forward end, said construction including a vertically extending portion disposed substantially at right angles to the main plane .of the body portion of said auxiliary door nd adapted to co-operate with the adjacent edge of said mainsliding door; and means associated with said auxiliary door for bracing said metallic portion against rotation about its longitudinal axis, said Vmeans extending diagonally from the wood portion to said member and attached to the latter inwardly of the inner plane ot the wood portion.

19. In a lcar, the combination with main and auxiliary oppositely sliding doors arranged to have their front edges meet whenv the doors are in closed position, said auxiliary door including a main body portion of wood provided at its forward edge with a metallic construction including a vertically extend ing metallic element having a section arranged at substantially right angles to the main body 'portion of said auxiliary door, said section extending inwardly of the main plane of the door; a nailing strip secured to the forward .have hereunto subscribed my name this 7th day of November, 1923.

ALLAN S. BARROVVS.

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