US1300958A - General-service railway-car. - Google Patents

Description

H. S. HART.

GENERAL SERVICE RAILWAY CAR. APPLICATION FILED ocT. I4, I9I8.

1 ,300,958, Patented Apr. 15, 14919.

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APLICATION FILED 001114, i918.

Patented Apr. 15, 1919.

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H. S. HART.

GENERAL SERVICE RAILWAY CAR.

Pafented Apnl, 1919.

APPLICATION FILED OCT. I4, 19418. 1,800,958.

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H. S. HART.

GENERAL SERVICE RAILWAY CAR.

APPLICATION FILED OCT. I4. 1918.

Patented Apr. 15, 1919.

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H. S. HART.

GENERAL SERVICE RAILWAY CAR.

APPLICATXON FILED 0CT.14,1918.

Patented A p1'. 15, 1919.

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GENERAL SERVICE RAILWAY CAR.

APPLICATION FILED OCT. i4. 1918. 1,300,958. Patented 1111.151919.

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HAERY s. HART, or OHIOAGO, ILLINOIs, AssIGNOR 'ro NATIONAL DUMP OAR COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF MAINE.

GENERAL-sentirci: RAILWAY-OAR.

specification of Letters Patent.

Patented Apr. 15, 1919.

To all whom t may concern Be it known that I, HARRY S. HART, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and `useful Improvements in General-Service Railway-Cars, of which the followin'g is a specification.

This invention relates to general service railway cars.

As is well known, the general service type ofA railway car is a car having a level iioor extending from end to end of the ycar and being largely composed of hinged doors arranged to drop toA discharge the load from the car.

These cars'are commonly constructed with the entire Hoor composed of the drop doors. Itis apparentr that in substituting for the ordinary stationary floor of a gondola or other flat bottom car, aI fioor composed of drop doors, no advantage can be taken of theloor as a shock and strain resisting element. Y

The shocks and strains must, therefore, be transmitted wholly through the underframe membersY or through the sides of the car, or both. As railroad cars are subjected to severe racking strains, it is necessary in this type'of car toA make provision to resist such strains.

It has been sometimes the practice, therefore, in building generalA service cars, to make a portion of the car Hoor extending inwardly from the end sills stationary with the remainder of the horizontal ioor composed of drop doors. This,1whi1e adding to the stiifnessof the car, necessitates shoveling out a portion of the load which is carried upon the stationary ends.

The object of my present invention is, therefore, to provide a car of the general service type, which, while having the desirable feature of discharging substantially the entire load, will at the same time possess the necessary strength for the resisting of racking strains and also to provide a construction by meansof which the floor of the car may be considerably lowered, making it possible to increase the carrying capacity of the car without increasing its length.`

`In accomplishing these objects, I have provided a car of this type withI a rigid stationary door extending inwardly from the end sill and sloping downwardly and outwardly, toward the sides of the car. This rigid floor portion may extend inwardly to such distance as may be desirable so as to connect to underframe members of the car, such `as the bolster or an adjacent cross member, forming at the same time a discharging floor from which dumpable material may readily be unloaded. The remainder of the floor between these rigid portions l form as usual of drop' doors normally substantially horizontal and substantially in the plane with the center sill to form therewith a continuous level floor.

The invention will be further understood by reference to the following specification and drawings, inwhichf.

Figure l is a: fragmentary side elevation of a general service car embodying my invention;

Fig. 2 is a fragmentary plan view of the same car;

Fig. 3 is an end elevation of the same car;

Fig. 4 is a transverse sectional view of the same car, the section beingtaken over one of the trucks;

Fig, 5 is a fragmentary plan view of a general service car embodying a modified floor structure over the trucks; and,

Fig. 6 is a transverseA sectional: view of a general service car showing a further modified form of floor.

As is well known, a general service car may be used for carrying dumpab'le material one day, and for carrying non-dump'able material, such as lumber and the like, another day. As stated above, heretofore it sometimes has been the practice to provide general service cars with a horizontal fiat bottom floor in a single plane and including pivotally mounted dump doors largely or entirely throughout the length of the car. With such construction it is necessary that the floor of the car be at a relatively high level in order that' the door doorsv over the trucks might be moved into an open position for dumping a dumpable `load to the sides of the car. The carrying capacity of the general service car can be increased effectively if the floor of the car over the trucks is lowered, and the car be made self-cleaning if these door portions are made to slope downwardly and outwardly toward the sides i of the car, the stiffness `and rigidity of the car at the same time being maintained at a maximum.

ATo this end I have provided a general service car having a body 10,including sides 11, ends 12, and a single floor, the end portions 13 of which over the trucks preferably are A-shaped, including rigid stationary portions 14 which, as shown in Figs. 1 to 5, inclusive, extend from the center of the car at the level of the top of the center sill 15 downwardly and outwardly toward the sides of the car. The discharge openings between the` lower edges of the sides 11 of the car and the outer edges of the sloping stationary floor members 14, normally are closed by lside dump doors 15 which may be operated in any suitable manner, such as operating shafts 16 and chains 1'7 connecting said shafts with the lower edges of said doors 15.

By referring to Fig. l of the drawings, it will be noted that the stationary A-shaped floor portion 18 over the trucks at each end extends inwardly from the end sill 27 to the bolster 18 and is connected to the underframe members to stiifen the car. However, if de sired, the'stationary A-shaped Hoor portion 13 may extend the full length of the truck to an adjacent cross member 28, as shown 1n Fig. 5, in which event the side dump doors will extend the same length. By giving the Hoor portions over the truck of the general service car an A-shaped construction, the eil'ective carrying capacity of the car is effectively increased, the car made self-cleaning, and at the same time because of the rigid connection of these floor portions to the cross members the stiffness and rigidity of the car body is maintained at a maximum without the use of an abnormally heavy and expensive underframe structure.

Y The floor intermediate the trucks comprises dump doors 19 which are pivotally connected along the center sill and normally being in a horizontal position in the same plane with the upper surface of the center sill to provide a flat bottom. These dump doors 19 preferably are arranged to swing downwardly and inwardly away from the sides of the car for dumping the load outwardly with respect to the track. The operating mechanism for the floor doors 19 may include operating shafts 21 and suitable chains A22 connecting said shafts with lsaid doors. The doors 19 when in their normal horizontal position, not only are suitable for supporting a dumpableload, but also anondumpable load, such as lumber and the like. The sloping oor portions over Vthe trucks may receive and hold any of the usual material' shipped in the gondola or other flat bottom type of car.

construction in which the floor is set at a lower level than shown in the otherfigures of trolled by the same operating mechanism rey ferred to in connection with the other gures of the drawings. The modiication provides an arrangement in which the capacity of the car is increased an additional amount. .It will be noted in all the forms shown that the floor portions over the trucks extend toa level lower than the floor portion intermediate the trucks.

By means of my invention I have provided a general service railway car in which the sloping oor portions overfthe trucks make the car self-cleaning, Yor substantially so, increase the capacity of the car, and. give the car a stiff and rigid construction capable' of resisting effectively the racking strainsoccurring in regular service without the use of a heavy and expensive underframe, and at the same time providing a car suitable for carrying in an approved manner dumpableand non-dumpable loads.

It is my intention to cover all modifications of the invention falling within. the spirit and scope of the following claims.

I claim:

Y 1. A car of the class described havingthe usual underframe comprising longitudinal and transverse members and a floor, said floor at the ends of the car comprising .stationary portions sloping downwardly and outwardly toward the sides of the car, said stationary portions being disposed below fthe upper level of the longitudinal and transverse members and being rigidly connected to adjacent transverse members, the remainder of the floor being substantially horizontal and in a single plane and composed largely of doors arranged to discharge the oac.

2. Acar of the class described having the usual underframe comprising 'longitudinal and transverse membersand a single floor, the floor between adjacent transverse members at the end of the car being formed with 4downwardly and outwardly slopingportions extending between said transverse'rnembers and rigidly connected thereto, the floor between the remaining transverse members being substantially horizontal and composed of doors hinged at or near the center sill and dropping away from the sides of the car to discharge the load. Y Y

3. A car of the class described,'having a single floor which comprises stationary down` wardly and outwardly sloping end portions extending inwardly from the end sills and being connected to the underframe members to stiffen the car, the remainder of the Hoor being substantially horizontal and substantially in the plane of the top of the center sill.

4. In a general service railway car, a car body having sides, ends and a single floor, the floor over the trucks comprising stationary portions extending downwardly and outwardly toward the sides of the car between adjacent cross members and being rigidly connected thereto, and side dump doors eX- tending between the lower edges of the sides of the car and the outer edges of the stationl ary portions, the floor between the trucks comprising pivotally mounted doons normally in a substantially horizontal plane and above portions of the floor over the trucks.

5. A car of the class described having the usual underframe comprising longitudinal and transverse members and a single floor, the floor between adjacent transverse members at the end of the car being formed with downwardly and outwardly sloping portions extending between said transverse members and rigidly connected thereto, the fioor between the remaining transverse members being substantially horizontal and composed of doors hinged at or near the center sill and dropping away from the sides of the car to discharge the load, and operating mechanism for said doors.

Signed at Chicago, Illinois, this 10th day of October, 1918.

HARRY S. HART.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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