US2363135A - Door construction - Google Patents

Description

Nov. 21,/1/944. T, MDLAND 2,363,135

DOOR CONSTRUCTION Filed May 12, 1942 www , Patented Nov. 2l, 1944 i FFICEy DOOR CONSTRUCTION Thorvald Madland, Chicago, Ill., assignor to The `Youngstown Steel Door Company, Cleveland,

Ohio, a corporation of Ohio Application May 12, 1942, Serial No. 442,699 iciaims (o1. .2o- 26) This invention relates to door construction and is directed more particularly to sliding `lift doors `for railway house cars and to the construction for securing a Weather-tight seal for the upper edge thereof. `It is an object ofthis invention to provide sliding lift `doors for railway house cars the upper edge of Whichshall be so constructed as to furnisha flexible weather-tight seal.

, if further Objectis the provision of doors of the character stated above, the upper edge of which shall be so constructed and related to door headersV that a flexible weather-tight seal is secured by a simple flexing action when the doors are lowered. Y

"A further object is to providedoors of the character stated above, the upper edge of which s hall incorporate -iiexible sealing members so related to the doors as to be protected thereby.

Other objects of the invention will become clear as the description thereof proceeds njthe `drawing forming part of this specification: i

` Fig. 1 is a partial elevation of a sliding lift door and associated car side illustrating theinvention, 'parts being broken away `to more clearly show the invention.

Fig. 2 is a horizontal section taken on of Fig. 1.

line 2-2 Fig. 3 is a vertical section taken on line 3--3 ofFig. 1.

Referring to the drawing wherein a preferred embodiment of the invention is illustrated, ref-` erence numeral Idesignates the side plateof a sidewall of a railway house car. The side plate is usually Z-shaped in section `embodying an` upstanding flange II shown partially in Figs. l and `3 of the drawing, a horizontal web l2 andra `dependingflange I3; f l l A 'Z-shaped retaining bar I4 is fastened to the depending flange I3 as by `means of rivets I5 which pass through the upstanding leg IB ofthe retaining bar. The web I1 of said bar extends outwardly and carries a depending leg I8 spaced from thedepending flange I3 of the side plate.

`A door header I9 is also fastenedto the:de pending flange I3 4of the side plate as by means of rivets 20. The door header extends across the door opening and is substantiallyY J-shaped in section and embodies an inner upstanding flange 2l which is fastened to the dependingflange I3 of the side plate by the rivets 20, anoutwardly extending web 22 and an upwardly extending angc `23. The header presents a trough 24 capable of catching and disposing of foreign matter which might otherwise nd its way into the car through the door opening. It will be observed` from Fig. 3 of the drawing that the upstanding flange 23 of the headeris spaced from the depending leg I8 of the retaining bar I4 so as to provide with said leg a guide and retaining construction for a sliding lift door.

The door illustrated is formed of metal and embodiesa metallic panel 25 formed with a plurality of horizontal corrugations, the uppermost of which is shown at 26. These corrugations merge' at their ends into vertical corrugations 2'I and 28 formed in the panel adjacent to the front and rear vertical edges thereof.` A substantially channel shaped reinforcing member 29 is secured to the front vertical margin of the door. The rear vertical margin of the door is reinforced by means of a sealing strip 30 and a buffer angle 3l.` `When the door is closed the sealing strip 30 is adapted to cooperate with a spark strip 32 to seal the rear edge of the door. 'I'he spark strip 32 is fastened to the outwardly extending Aleg 3.3 `of an angle member 34 which is secured as by means `of rivets 35 to the leg 36 of a door post 31 shown partially in Fig. 2 of the drawing.

While the door has been described in some de tail, its construction` is well known and it is to be understood that the instant invention is not limited to Such a door but may beutilized with doors constructedof different materials and of different designs.

The upper margin of the door is reinforced by means of an angle member 38, the `vertical leg 39 of which is secured as by means of rivets 40 upon. the outside of the metallic panel 25. The horizontal leg 4I of the reinforcing angle 38 extends inwardly across the upper edge of the panel and the upstanding` fiange 23 of the door header I9 so as to lieabove the trough 24 of said header. It

. willbe observed from Fig. 3 of the drawing that the inwardly extending flange 4I of the reinforcing angle is spaced above the upper edge of the upstanding flange 23 ofthe door header. `The instant invention provides a construction whereby this space is effectively closed so as to prevent 2 L v y sealing strip 42 also embodies a horizontal flange 44 which bears against the underside of the horizontal flange 4I of the reinforcing angle 39. The flange 44 is formed with a return bend and is extended downwardly and outwardly in the form of`a readily flexed flange 45.

The door illustrated on the drawing is of the lift type, that is, a door which inits lowered position is frictionally supported upon' a track and which is adapted to be elevated and supported upon rollers or other anti-friction means when it is desired to open or close the door. The door is illustrated in its lowered position in full lines i in Fig. 3 of the drawing and Vin elevated posi-tion in dot and dash lines. Any desired means may be provided for effecting elevation and anti-frictional support of the door, an, example of such meansA being shown in the patent to Madland'v the door header I9 is established andas the door continues its lowering movement to frictional lengagement with its supporting track flange 45 of the sealing strip is flexed so as to insure sealing engagement thereof with the header ilange 23. It will be apparent that when such engagement has been established no foreign matter can be forced out of the header trough 24 over the ange 23 into the-car. Any foreignmatter which may be in the trough will be disposed ofthrough the end of the trough which is open beyond the spark strip 32 and outwardly 'of thedoor opening.

-To insure against damageto the sealingstrip 4.2y when the door is being closed the upstanding` flange 23 of the header is bevelled, as indicatedat 46. This flange is extended rearwardly beyond the attaching 'ange ,of thelspark strip 32 .as more clearlyshown in Fig. l. The sealingstrip 42 is similarly l.extended and its-end bevelled .as shown in Fig. 2 :to avoid interference with the door sealing strip-3B .which extends upwardly Ato the leg 4I of the reinforcing angle 38. The upper rear corner of the door is thereby effectively sealed.

`It is apparent that the invention is not limited to the particular shape of the illustrated sealing strip nor to the `mode of securement ofthe sealing strip to the door. In the employment ofthe instant invention modification of the .door structure and car side structure is avoided. The sealing strip does not interfere with interchange-y ability with doors which may not beprovided with such a strip and its disposition is such vthat it is protectedv during. shipment of the doors and at all other times by the door reinforcing angle.

It will be apparent that numerous changes .an'd modifications in the details of the invention will be clear to those skilled in the art. It is intended, therefore, that all such modifications and changes be comprehended within this invention, which is to be limited only by .the scope of the claims appended hereto.

I claim: i 1. A sliding lift door for railway house cars comprising a panel, a metallic reinforcing member secured to the upper margin of said panel, said member having a vertical flange fastened to the outside of said panel and a flange extending inwardly across the upper edge of said panel, and a flexible metallic sealing strip, said sealing strip having a flange frictionally secured between said panel and said vertical flange of said reinforcing member and a flange abutting the underside of and'terminating within said inwardly extending flange of said reinforcing member, said latter flange of said sealing strip having an outwardly and downwardly inclined sealing flange. 4

I2.4In a railway house car embodying a wall having a door opening therein, a .trough-shaped door ,headerl secured to said'wall across said door opening, `said header yhavingyan outer upwardly extending flange, a longitudinally sliding lift door mounted upon said car, a reinforcing flange at.

the-upper margin of said door extending inwardly abovesaid header flange, a flexible metallic sealingstrip secured to said door, said sealing strip` 1 having a flange abutting against the underside .of` said reinforcing flange and a downwardly and4 outwardly inclined sealing flange, said.l `latter flange overlapping and being engaged and flexed by the upper edge of lsaid header flange when said door is lowered. i

3. In a railway house car having a door opening therein, a trough-shaped door `header `secured to said wall `across said door opening, said header having an outerl upwardly extending flange, a longitudinally sliding lift door mounted upon said car, la reinforcing flange at the upper margin of said door extending inwardly above said header flange, a flexiblemetallic sealing strip secured tosaid door, said sealingv strip abutting against .the underside of said reinforcingI flange and having a downwardlyin'- clined `sealing flange, said latter flange overlapping and being engaged and flexed by the upperv having a flange frictionally secured between said panel and said vertical flange of said reinforcing member, said sealing strip abutting the andere side of said inwardly extending flange of said re inforcing member and having a downwardly inclined sealing flange terminating within said inwardly extending ilangeof said reinforcing member.

THoRvALD embodying va wall

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