US1344208A - Drop-door for railway-cars - Google Patents

Description

1.0. NEIKIRK.

nso? nooR FOR RAILWAY CARS.

APPLICATION FILED AUG.6, 19H.

Patented June 22, 1920 2 SHEETS- SHEET I.

JZAWI l I '.I. 0. NEIKIRK.

DROP DOOR FOR RAILWAY CARS. APPLICATION msn Auen?. 19H.

1,344,208. Panted Junezz, 1920.

2 SHEETS-SHEET 2.

,JoHN o. nninnx, 'e LOMBARD, Immers AssIGNoR To QMPANY, A CORPORATION or MAINE.

RODGER BALLAST CAR n: or-noon ron RAILWAY-CARS.

' Application filed August 6,

To all "to/"tom 'it may concer/a:

Be it known that l, Jol-1N O. Niemann, a citizen of the United States, and .resident of Lombard, in the county of Dupage and State of Illinois, have invented certain new and luseul Improvements in Droppoors for llailway-Cars,l of 'which the following is a specification. V-

This invention relates to railway cars ol' the type more particularly liinown as gen# eral utility cars, which have drop. doors hinged to the underframe and extending beneath certain of the members of the underframe, and the invention has `for its object 'to improve the constructionof such cars by providing. means for minimizing the leakage of material therefrom and for strengthening the doors so as toA adapt the cars to meet the various requirements tor successful commercial operation.

These and other objects are accomplished by providing a drop door comprising a piece of material having corrugations formed therein for giving strength to the l door and also being of Z-section, the flanges giving added strength to the door and the same being arranged to preventlleakage.

The invention is illustrated on the accompanying sheets of drawings in which,

Figure l is a fragmentary plan View of a freight oar embodying my invention;

Fig. 2 isa fragmentary sectional view of the same;

Fig. 3 is a fragmentary plan view of/my improved door;

Fig. 4 is a sectional view of the same door taken inthe plane of line 4-4 of Fig. and 'i Fig. 5 is another sectional view of the same door taken in the plane of line 5 5 Of Fig. 3. l;

The various novel features of my invention will be apparent from the followingy dem siription and drawings and will be particularly set Jforth in the appended claims.

My invention is illustrated-in connection with a railway freight car supported. on wheels l0 and including side plates 1l which are reinforced by stakes 12. Spaced center sills 13 and 14 are arranged lengthwise of the car and secured to the tops thereof is a cover plate 15 which spans the center sillsV Suitably supported a't the sides and also upon the cover plate 15 at each end of the car is a relatively elevated floor portion 18.

` eachy side of the car shedding l connect 'theide members 11 'with thejstop Specification. of Letters Patent. Patcnted June 22, 1920.

1317. Serial No. 184,600.

ntermediate the ends .of the car and below the level of the floor portion 18 at each end ot the oar are oppositely arranged doors 19 and 20, which are of Z-eross section. To withstand the heavy service to which they are subjected, the body portions of the doors7 which may be made of metal, are provided with` corrugations 2l, the depth of which increases toward the middle of the door.y giving the lower portion of the door a general tapered effect extending downward toward the middle of the door. The upper or top portion of each of the doors is straight and normally lies in a horizontal plane. The corrugations do not extend entirely across' the door, there being plane portions 22 and 23 adjacent the flanges 24 and 25, the former of which extends downwardly at right angles to the main portion of the door and the latter flange 25 of which extends upwardly at right angles-t0 the main portion of the door. The corrugations in. the body of the door add greatly to the strength of the door,A this being especially true where the depth of the corrngations is greatest along the middle of the door. shown. The flanges 24.- and25 also add to the strength of the door. A

By referring to Fig. 2 it will'be noted that the upwardly extending flanges 25 of each of the doors is connected to a hinge 26 which in turn is secured to one of the center sill members, whereupon these pivotally mounted doors may be swung or dropped downwardly to permitv outward dumping of the load to either side of the car. The operation of the doors 19 and 20 is controlled by shafts 27 extending alongl the sides of the car and around which chains-28 are wound, one end of each of the chains being connected to .the front or outer por.- tions of the doors. If it is desired to unload the car. `it is merely necessary to actuate the shaft 27 in a manner to permit the doors 19 and 20 to drop or swing about their pivots. It will be noted that the outer portion of the doors engage. stop members 29 and that the downwardly extending flan es 24 also engage the downwardly exten ing flanges 30 of the stop members 29. Not only do the flange ortions 24 and 25 of the door greatly strengt en the same to withstand the heavy service', but .they also preventilealr'a 011- em rs 31 members 29. It is apparent from the above description that I have provided a car of the type described, in which the drop doors eX- tend beneath the underframe members and are provided with flanges so arranged to cooperate with the frame of the car as to minimize the leakage .of material. This is a matter of great importance since it greatly lessens claims for damage arisingfrom loss of material in transit. Further, I have pro.-

vided a door which is strengthenedby this arrangement of fianges and, if desired, by

the construction of the body of the door so that it will withstand the heavy service to .which these cars are subjected.

It is evident that there may be various 'modifications of the arrangement herein shown and described, and'it ,is my intention to cover all such modifications which do not involve a departure fromfthe spirit and scope of my invention as set forth in the Vfollowing claims. .f

I claiin :V

1. A drop door for railway cars, the `top VVportion of which is in a single plane andthe under portion of which is provided with corrugations extending in the line of flow v of the dumpable material andr being deeper point than at ,f ,other creasing toward the middle of the door, andi? Y flanges extendingY from the body portion "ofA the door for giving strength to the same.

4. In a railway car, the combination of frame members, a corrugated door having a body portion and flange portions extending therefrom, one ofsaid flanged portions being pivotally connected to one of said frame members @id thepther flange portion arranged adjacent-the other frame member to vprevent lealragepast said door.

5. In a railway car, the combination of a center sillm'ember, a side frame member, Vand corrugated door having a body portionfandl upwardly and downwardly extends ino Hannes. the upwardly extending flanges portion and a downwardly extending flange,

and a corrugated drop door having a body portion and upwardly and downwardly extending flanges, the upwardly extendiner flange being pivotally connected to said sill member and the downwardly extending flange being arranged adjacent the downwardly extending flange of said member, the door being limited in its upward movement by the stop portion of said member.

y A car having an underframe comprising a center sill taking the draft and hilfling strains and the usual cross members, doors hinged to the center sill and extending therefrom beneath the cross members toward the sides of the car, and lianges arranged upon the edges of the doors coperating with the frame members of the car.

8. A car having a center sill taking the draft and buffin/gf strains and the usual eros: members, doors hinged to the center sill ano extending therefrom beneath the cross members toward the sides of the car, said doors beingV provided along their longitudinal edges with oppositely extending Hanges. I

9. In a railway dump car, the' combina tion with the body of the car, of a hinged door forming part of the bottom of the car and adapted to assume an inclined position for dumping, comprising a sheet steel panel formed. with corrugations extending in the direction of movement of the cargo when dumped, which merge one into the other so that the panel has a sinuous configuration ii cross section.V

" l0. In; combination with the body oi a lfilwflljlllml ...oalprof v.a door,... means Yfor hinging the door to the bottom of the car body, means for supporting the edge of the door opposite the hinges when the door is closed; the door comprising a. sheet metal panel formed with corrugations which ex tend substantially from the hinged edge of the door-to said opposite edge. Signed at Chicago, Ill., this 27th day of July, 19TH JOHNO. NEIKIRK.

' Witnesses:

C.` E. JoRGnNsEN, JOHN S. MAURER.

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