US1022079A

US1022079A - Dump-car.

Info

Publication number: US1022079A
Application number: US24165305A
Authority: US
Inventors: Harry Stillson Hart
Original assignee: RODGER BALLAST CAR CO
Current assignee: RODGER BALLAST CAR CO
Priority date: 1905-01-18
Filing date: 1905-01-18
Publication date: 1912-04-02
Anticipated expiration: 1929-04-02

Description

H. S. HART.

Patented Apr. 2, 1912.

Cowman I'LANOGRAPII co, WASHINGTON, u. c.

H. S. HART.

DUMP OAR.

APPLIOATION FILED June, 1005.

1,022,079. Patented Apr. 2, 1912.

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UNITED STATES PATENT OFFICE.

HARRY STILLSON HART, OF CHICAGO, ILLINOIS, ASSIGNOR TO RODGER BALLAST CAR COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF MAINE.

DUMP-CAR.

To all whom it may concern:

Be it known that I, HARRY S'LILLSON 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 Dump-Cars, of which the following is a specification.

The invention relates to that class of dump cars known as center dump cars of the Rodger ballast type-that is, cars which are arranged to carry loose freight, such as ballast, coal, ore, and similar materials from one point to another and discharge the same when desired in the center between the rails which go to form the railway track.

The principal object of the invention is to provide a dump car of a specific construction with a central longitudinal hopper, the sides of which are sufliciently steep to cause the load to slide off easily by means of gravity, and further to provide such hopper with a door of maximum size, and means for operating the same, so that the largest and heaviestmaterial may be easily held and carried and as easily discharged, whenever desirable or necessary so to do.

An advantage secured by my improved car is that of securing suflicient capacity to render the car available for transporting lighter material, such as coal, as well as heavy material, such as rock or gravel used for ballast. Cars constructed of only sufficient capacity to carry heavy material cannot be economically used for the transportation of lighter material on account of the large ratio of the weight of the rolling stock to that of the material transported. Cars have heretofore been constructed of the type illustrated in the patent to H. S. Hart No. 664,268, granted December 18, 1900, in which cars the ends are movable from a vertical position at the end of the car to an inclined position at some distance from the end of the car where they form the end wall of a longitudinal hopper bottom. \Vhen adjusted at the end of the car the capacity is sufficient for the transportation of lighter materials, and when adjusted to the inclined position at the end of the hopper bottom the capacity of the car is reduced to the requirements of heavier material, such as ballast, and at the same time an inclined end is provided for the hopper bottom whereby all of the contents of the car may be discharged.

Specification 01'. Letters Patent.

Application filed January 18, 1905.

Patented Apr. 2, 1912.

Serial No. 241,653.

One of the advantages of my improved car lies in the fact that the sides are sufficiently high to provide capacity for the economical transportation of lighter mate rials, such as coal, and the high sides so provided are utilized as the longitudinal structural members of the car frame, their height being sufficient when constructed in plate girder form to carry the entire load between the bolsters. The use of intermediate or central longitudinal sills is thus dispensed with, it being necessary merely to employ sectional or articulated intermediate sills made up of parts extending between the bolsters and cross members. Such intermediate sills serve to assist in taking the butting strains, and such part of the load as they bear is transmitted through the cross niembers to the side plate girders. The extra material necessary for increasing the height of the car sides thus serves a twofold purpose resulting in a car of economical con struction, and economical in use by reason of its large capacity which, when fully utilized, permits the transportation of lighter materials, and when partially filled with heavier material, such as ballast, presents an inclined floor throughout from which the contents are readily discharged. The use of the car for all purposes is effected without the adjustment of any of its parts.

Other and further objects of the invention will appear from an examination of the drawings and the following description and claims.

The invention consists in a dump car formed principally of metal members and having metal bolsters at or near each end of the car, metallic side plate girders supported by said holsters, a plurality of transverse cross bearers connecting the side girders together, articulated intermediate sill members arranged parallel with the side girders and connecting the cross bearers together, and metallic gusset plates connecting the side girders and cross bearers together.

The invention consists further, and finally, in the features, combinations and details of construction hereinafter described and claimed.

In the accompanying drawin s-Figure 1 is a side elevation, partly in section, of one type of car as it appears when constructed in accordance with these improvements;

Fig. 2 an end view of the same, looking at it from the right hand side of the drawings; and F ig. 3 a cross sectional detail, taken on line 8 of Fig. 1.

In the art to which this invention relates it is well known that it is very desirable to provide a metallic car of simple construction and arrangement which will be economical to build or repair, and is provided with a dumping hopper portion extending longitudinally thereof, with its apex arranged near the longitudinal center of the car and which is further provided with as large a discharge opening as it is possible to obtain to meet modern conditions for the transportation and dumping of ballast, etc. To accomplish these ends this invention is particularly designed.

In illustrating and describing these improvements I have only illustrated and will here describe that which I consider to be new, taken in connection with so much that is old as will properly disclose the invention to others and enable those skilled in the art to practice the same, leaving out of consideration other and well known elements, which, if set fort-h herein, would only tend to confusion, prolixity and ambiguity.

In Constructing a car in accordance with these improvements I provide two metal bolster portions a, formed of a pair of trans-' versely and vertically arranged plates 6,

secured together at their upper and lowerportions by the horizontally arranged plates 0. To form the sides of the car, so as to carry the entire load therein, two side plate girders are provided and secured to these bolster mechanisms, which are arranged at or near each end of the car, and these side plate girders are formed of a plurality of angular metal pieces cl forming struts and interposed plates 62 forming fillings therefor, such struts being connected together at their upper portions by means of horizontally arranged metal angle members f. It will be seen, therefore, that the entire load of the car is carried by these side plate girders, which, in turn, rest upon the bolster mechanisms, such bolster mechanisms in turn resting upon the truck mechanisms not shown. To complete the framework of the carthe underframingas well as to assist in tying the parts together, a plurality of cross bearers g are provided, formed preferably of metal I-beams secured to and tying the lower ends of the side plate girders together in a very simple and efficient manner. In order to stiifen the structure and assist in the transmission of the stress and strains incident to the use of such a car, as well as to carry and maintain other parts in efiective operative position, two sectional intermediate sill members it are provided, formed of metal channel beams of substantially the same width as the cross bearers, and which are secured in the manner illustrated in the drawings between all and to each of the cross bearers and extending fro-m the bolsters to the next adjacent cross bearers, so as to tie them together. It will be seen that these articulated sill mem bers are arranged parallel with the lower ends of the vertical side plate girders, thereby serving to stiffen the structure at the points where it is subjected to heavy stress and strains. To further assist in tying the parts together, as well as to form as efiective a structure as possible, triangular gusset plates z' are provided and secured to the vertical side plate girders and to the cross bearers, particularly as shown in Fig. 3 of the drawings. It will be understood, however, that these gusset plates can be indirectly as well as directly secured to these cross bearersthat is, they may be secured directly to the articulated intermediate sills, which, as above stated, are in turn secured to the cross bearers, in this way supporting the intermediate girders from the side girders as well as from the cross bearersall of which I consider to be an equivalent structure to that hereinbefore described.

To form a hopper for the car I prefer to make the upper portion thereof with and by the upper parts of the side plate girdersat least the sides thereofand the ends thereof with inclined portions 76 that extend from the upper ends of the side plate girders down to the apex of the hopper, as hereinafter more fully set forth. The remaining or principal portion of the hopper is formed in a V-shaped manner of a pair of inclined walls, the upper ends of which are secured to and supported by cleats m, in turn secured to and supported by the side plate girders, so that the ends of said V- shaped hopper may be truthfully said to be secured toalthough indirectlyand supported by the side plate girders themselves. The middle portion of the inclined walls of the hopper rest upon and are secured to a second set of cleats n, which, in turn, rest upon and are secured to the cross bearers and articulated intermediate sills to more effectually apportion the load and transmit the stress and strains throughout the entire framework of the car. The apex of the hopper extends below the supporting framework of the car, substantially in line with the longitudinal center, so that any material carried therein may be dumped, whenever desirable, directly between or in the center of the rails that form the supporting railway track.-

To provide as large a discharge opening as possible, and at the same time enable the material to be carried as effectively as possible, a swinging discharging door 29 is provided and arranged to form the lower portion of one of the inclined walls of the hopper. The upper edge of this inclined door is pivotally secured to brackets g, in turn secured to the articulated intermediate sills at a point or points substantially at or near the upper level of said articulated sill members; while the lower or free edge of said swinging discharging door is arranged to meet the opposite edge of the other inclined wall at the apex of the hopper.

To open and close the hopper an operating rock-shaft 1" is provided, with its' bearings rotatably mounted in the brackets t, which, in turn, are secured to the other articulated sill member. Chain mechanism a is provided, one end of which is adapted to be wound around the operating rock shaft and the other secured to the free ends of the swinging discharging doors. By this arrangement it will be seen that the door and its operating mechanism are carried in a very simple and effective manner by these articulated sill mechanisms, thus arranging in one instance for as large a discharge opening as possible and for the effective carrying of the operating shaft in the other instance-all of which will be thoroughly understood and appreciated by those skilled in the art.

I claim 1. A car, the load-carrying members of -which consist of bolsters and side plate girders supported thereby, in combination with transverse cross bearers between said side girders, gusset plates connecting said bearers and side girders, sectional sill members intermediate and parallel with said side girders and supported by said cross bearers, and a hopper bottom carried by the sill members.

2. A car, the load carrying members of which consist of bolsters and side plate girders supported thereby, a plurality of transverse cross bearers connecting the side girders together, sectional intermediate sill members arranged parallel with the side girders and connecting the cross bearers together, metallic gusset plates connecting the side girders and cross bearers together, and a hopper. bottom supported by the sectional sill members.

3. In a car of the class described, the combination of bolsters, load carrying plategirder sides supported by said bolsters, a hopper bottom extending downwardly between said sides and supported thereby, a plurality of cross bearers extending through said hopper bottom and connecting said sides, and intermediate sectional sills parallel to said sides and connecting said bolsters and cross bearers, said sills and said cross bearers being adapted to support said hopper.

4c. In a car of the class described, the combination of bolsters, vertical side plate girders supported by the bolsters and carrying the entire load, intermediate girders supported by the side girders, a longitudinal hopper supported by the side and intermediate girders, and a door at or near the bottom of the hopper depending from said intermediate girders.

In a car of the class described, bolsters, end walls inclining downwardly between said bolsters, a center sill structure located wholly outside of said end walls, plate girder sides supported by said bolsters, cross beams between said bolsters and supported by said sides, intermediate longitudinal sills supported by said cross beams and bolsters, and a central hopper between said intermediate sills and supported thereby and by said cross beams and plate girder sides.

6. In a car of the class described, the combination of bolsters, load carrying plategirder sides, a hopper bottom extending downwardly between said sides, a plurality of cross bearers extending through said hopper bottom and connecting said sides, and intermediate sectional sills parallel to said sides and connecting said bolsters and cross bearers, whereby a car without center sills is provided for the purpose set forth.

7. In a car of the class described, the combination of bolsters, plate girder sides carrying the entire load and supported by said bolsters, and a hopper having sides inclining downwardly from and supported by said plate girder sides and meeting at the longitudinal center of the car.

8. In a car of the class described, the combination of bolsters, plate girder sides carrying the entire load and supported by said bolsters, a hopper having sides inclining downwardly from and supported by said plate girder sides and meeting at the longitudinal center of the car, and means intermediate the depth of said inclining sides and supported by said plate girder sides for supporting said hopper.

5). In a car of the class described, the combination of bolsters, plate girder sides carrying the entire load and supported by said bolsters, a hopper having sides inclining downwardly from and supported by said plate girder sides and meeting at the longitudinal center of the car, cross bearers connecting said plate girder sides together and supported thereby, and means connecting said cross bearers together and supported thereby for supporting said hopper.

10. In a car of the class described, the combination of bolsters, plate girder sides carrying the entire load and supported by the bolsters, a plurality of transverse cross bearers connecting the sides together and supported thereby, gusset plates connecting the girders and cross bearers together, intermediate sill members having their ends secured to said cross bearers, and a hopper supported by said members.

11. In a car of the class described, the

combination of bolsters, load carrying plate thereby, and a hopper bottom extending girder sides supported by said bolsters, con downwardly between said sides and suptinuous cross bearers extending from one ported by said sides and said sectional sills. 10

plate girder side to the other and supported HARRY STILLSON HART. 5 by said sides, intermediate sectional sills WVitnesses:

parallel to said sides and connecting said THOMAS FRANCIS SHERIDAN,

bolsters and cross bearers and supported ANNIE C. CoURrENAY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.