US3253556A

US3253556A - Gondola railway car

Info

Publication number: US3253556A
Application number: US293518A
Authority: US
Inventors: Kurt F Glaser; Frederick G Stewart
Original assignee: Reynolds Metals Co
Current assignee: Reynolds Metals Co
Priority date: 1963-07-08
Filing date: 1963-07-08
Publication date: 1966-05-31
Anticipated expiration: 1983-05-31

Description

May 31, 1966 Filed July 8, 1963 K. F. GLASER ETAL GONDOLA RAILWAY CAR 2 Sheets-Sheet l INVENTORS [fa/P r F 64 195 EA 5:05am GSrnmer Midi,

ATTORNEYS May 31, 1966 K. F. GLASER ETAL 3,253,556

GONDOLA RAILWAY CAR Filed July 8, 1963 2 Sheets-Sheet 2 INVENTORS flue 7 f 62 35 ATTORNEYS United States Patent 3,253,556 GONDOLA RAILWAY CAR Kurt F. Glaser, Richmond, Va., and Frederick G. Stewart,

Washington, D.C., assignors to Reynolds Metals Company, Richmond, Va, a corporation of Delaware Filed July 8, 1963, Ser. No. 293,518 14 Claims. (Cl. 105-406) This invention relates to railway car construction and in particular to an improved construction and arrangement of the frame with the side and end walls of the car to provide increased load capacity while retaining proper strength and side clearance.

It is a primary object of the invention to provide a railway car, such as a gondola car or tank car having a pair of novelly arranged and constructed side sills extending the length of the car and an improved end construction by which compressive forces are transmitted from the draft lug to the car frame and by which the car end walls are supported against forces created by the load during deceleration of the car.

It is a further object to provide a car of the above type constructed substantially completely of aluminum and in which the arrangement is designed to employ a minimum amount of metal while providing strength and rigidity necessary for carrying the heavy loads typical of this type of car.

It is a further object to provide a side sill construction for a railway car in which the sills are disposed at or below the level of decreasing maximum width and are constructed of outwardly facing channel members, each having a downwardly and inwardly extending web so as to increase loading capacity while maintaining the standard side clearance for this portion of the car.

It is another object to provide a railway car having a short center stub sill which receives the impact forces from the draft lug of the car and transmits them to laterally spaced elongated side sills by means of a horizontal shear plate secured to the stub sill and the side sills.

It is yet another object to provide a railway car having an inclined end wall which is braced so as to resist longitudinal forces transmitted to and from the load by a rigid brace member of substantial transverse" area engaging the end wall.

It is a still further object to provide a gondola car having end walls braced as described above wherein the end walls are reinforced by external horizontal ribs or corrugations and wherein the brace is secured to the ribs.

The invention will be more fully understood from the following detailed description taken with the drawings in which:

FIGURE 1 is a schematic side elevational view of a gondola car;

FIGURE 2 is an end view, on an enlarged scale, of the car of FIGURE 1 partly in section and looking in the direction of the arrows 2-2 in FIGURE 1;

FIGURE 3 is a schematic, longitudinal, vertical sectional view of' one end of the car;

FIGURE 4 is a fragmentary sectional view taken on the line 4-4 of FIGURE 2;

FIGURE 5 is a fragmentary sectional view taken on ice elongatedv side sills 12, 13' which are supported near their ends by track-engaging wheels 14 journalled in the usual manner on trucks (not shown). A vertically flat side wall 16 of trapezoidal shape is welded along its lower edge 18 to the top of each

side sill

12, 13 and is reinforced along its inner surface by spaced vertical channel members 20.

Near each end of the car 10 an inclined end wall 22 extends upwardly and longitudinally outwardly between the side walls 16 and is welded thereto. 'Each end wall 22 is braced by an inclined brace 24 which extends upwardly and longitudinally inwardly from about the level of the

side sills

12, 13 to about the midpoint of the end wall 22. The bottom dump doors and mechanism for operating them, illustrated at 25, are conventional and are located along the lower edge of the car.

Referring to FIGURES 2, 3 and 4, one of the important features of the invention lies in the relationship of a short center stub sill 26 at each end of the car 10 to the

side sills

12, 13 and to the end walls 24. Longitudinal center stub sills of steel have been in use for some years on certain types of railway cars and are conven tionally constructed in the shape of an inverted channel formed in two opposite longitudinal halves which are welded together along their upper edges. Each of the stub sills 26 of the present invention may be of this general type and, as shown, consists of a horizontal web 26a, depending legs 26b and outwardly extending flanges 260 at the lower ends of the legs. The outer end of each stub sill 26 terminates slightly inwardly of the end of the car 10 and is adapted in any suitable manner to receive a draft lug 28. The inner end of each sill 26 abuts a transverse inclined plate 27 which is adjacent the outer surface of the lower portion of the end wall 22.

The car 10 is, of course, subjected to very large impact forces applied at the draft lugs 28 during use and these forces are transmitted directly to the stub sills 26. Since the stub sills are short, the force must be t'nansmitted to the

side sills

12, 13 where it will be resisted without plastic deformation of the material. According to the invention this is accomplished by a shear plate 36 riveted as at 32 to the top of the stub sill 26 and welded to the

side sills

12, 13 as at 34.

As is conventional in railway cars, a bolster arrangement is provided at each end. In the present end construction two bolster units 36, 38 are disposed on opposite sides of the stub sill 26 and extend transversely to the

side sills

12, 13. As seen in FIGURES 2 and 4. the left bolster unit 36 is an inverted channel-shaped member having upstanding legs 40 welded to a horizontal web 44 which extends laterally beyond the

legs

40, 42. Along its upper edge 46 and outer edge 48 the bolster unit 36 is welded to the shear plate 30 and to the side sill 1 2, respectively. A pair of vertical steel gusset plates (not shown) extending transversely of the car 10 are welded along one edge to the leg 26a of the center sill 26 and are riveted to the

webs

40, 42 near the inner ends of the latter. The opposite bolster unit 38 is of the same construction. The truck (not shown) for the wheels 14 is pivoted on a plate 50 which is riveted to the Webs of the bolster units 36, 38 and to the flanges 26c of the center sill 26 by means of rivets 52.

An end sill arrangement, also conventional, is provided at each end of the car in the form of two inwardly facing channel members 53 which extend transversely of the car. The channel members 53, or end sills, are disposed just below the shear plate with their inner ends abutting the web 2612 of the stub sill 26 and their outer ends abutting the

respective side sills

12 and 13.

Another important feature of the invention lies in the construction and arrangement of the

side sills

12 and 13 to provide maximum load capacity within the permissible transverse dimensions of the car 10. All railway cars are constructed within certain transverse dimensions which are standard in the industry to assure that the cars will clear all switches, platforms and the like during use. These dirnensions are smaller near the lower part of the car than near the upper part, and as seen in FIGURE 2 are determined by a clearance line 54 on each side of the car 10. Each clearance line 54 includes an upper vertical portion 56 and a lower, inwardly inclined portion 58. In railway car construction it is desirable to locate the side sills of the car as low as possible and as far apart as. possible in order to achieve maximum load capacity. However, these two features are mutually exclusive because of the inwardly inclined portion 58 of the clearance line. It has been the usual practice heretofore to locate the side sills above the point at which the clearance line 54 begins to incline inwardly because this arrangement sacrifices less capacity than placing the sills closer together at a lower level.

In the present arrangement, however, the

side sills

12 and 13 are disposed below the point of narrowing transverse dimensions but are shaped so as to reside completely within the clearance lines 54. As seen in FIGURES 2 and 5, the

sills

12 and 13 are constructed in the shape of outwardly facing channel members having upper and lower legs and an inwardly and downwardly inclined web. Only the left sill 12 will be described in detail and it will be understood that the right sill 13 is of identical construction.

The left side sill 12 is disposed so that its upper horizontal leg '60 is substantially on a level with the point at which the clearance line 54 begins to incline inwardly. The inwardly extending web 62 is parallel to the inclined portion 58 of the clearance line, and the lower horizontal leg 64 is about the same width as the upper leg 60 and is thereby inwardly offset from the upper leg 60. A down-' wardly and inwardly inclined side plate 66 is secured to the surface of the web 62 facing the center of the car and to the side wall 16 at its junction therewith and serves to support and guide the load toward the bottom dump doors. The vertical channel members pass through slots in the plate 66.

As best seen in FIGURE 5, the outer upper leg 60 of the sill 12 has an upwardly facing shoulder 68 along the outer edge thereof for receiving the lower edge of the side wall 16 which is welded thereto at 18. Opposite the shoulder 68 is a downwardly facing shoulder 70 adapted to receive the upper edge of a short side plate 72 which is welded across the inner edges of both the legs 60 and i 64. As seen in FIGURE 1, a side plate 72 is provided only at the ends of the side sill 12, thus leaving the channel open for most of the length of the car 10.

Conventional ladder rungs

74 and 76 are secured to the plate 72 inside the inclined portion 58 of the clearance line.

A further feature of the invention lies in the arrangement and construction of the end walls 22 for enabling shock forces to be transmitted to and from the load near the center of gravity of the car when loaded and for preventing roeking movements of the stub sill 26 about a transverse axis. This construction cooperates with the center stulb sill construction to provide a compact and relatively lightweight arrangement. The principal element of the arrangement is the inclined brace 24 which, as seen in FIGURES 2 and 3, extends between the shear plate and the outer surface of the end wall 22 intermediate the upper and lower ends thereof. The brace 24 is a thick triangular member of hollow construction secured along its lower horizontal edge to the top of the shear plate 30 directly above the stub sill 26 and along an adjoining edge to the end wall 22.

More in particular, part of the lower edge of the brace 24 is welded to a relatively narrow transverse plate 78 which is welded to the shear plate 30, and part is welded directly to the shear plate 30. The rear surface of the end wall 22 is provided with a plurality of vertically spaced, inwardly facing, horizontal channels 80 welded thereto, and an inclined end plate 82 is welded to the exterior of the channels 80. The edge of the brace 24 facing the end wall 22 abuts the end plate 82 and is welded thereto. The surface area of the end plate 82 is substantial so that compressive forces on the end wall in the direction of the longitudinal axis of the car 10 will not collapse or distort those channels 80 engaged by the end plate 82.

Other features of the end wall construction include a pair of relatively narrow transversely spaced straps 84 extending upwardly along the channels from the top of the end plate 82. The straps 84 are welded to the outer surfaces of the channels 80 and above the uppermost channel 80 are bent toward the end wall 22 and welded thereto. A single thin rib 86 extends from the bent portion of each strap 84 to the top of the end wall 22.

While the car 10 is of the bottom dump door type it is also adapted to be emptied by being inverted by appropriate equipment which rotates the car about a longitudinal axis. In order to prevent deflection of the side walls 16 when the car 10 is being rotated, the top of the car 10 is provided with trusses extending between the side walls 16.

As seen in FIGURE 6, spaced transverse trusses 88 are connected to opposite vertical channels 20 and diagonal trusses 90 of the same type are connected to alternate channels 20. Each truss 88, 90 includes a body portion 92 of generally oval tubular construction and end plates 94 extending therefrom. A generally V-shaped bracket 96 is secured to each vertical channel 20 with the legs of the V extending toward the center of the car, and each of the truss end plates 94 is secured to one leg of a bracket 96 as by means of bolts.

With the exception of the stub sill 26 and the gussets (not shown) for connecting the stub sill to the bolster units 36, 38 substantially all the components of the car 10 are constructed of aluminum. All aluminum-to-aluminum joints or connections are welded and the aluminum-t-o-steel connections are riveted.

It will thus be appreciated that the use of aluminum together with the design of the side sills, stub sill, shear plate and brace provide a car of greatly reduced weight. That is, the reduced weigh-t is effected not only by the use of aluminum, but also by the improved design which provides the necessary strength at a savings in metal. While the inclined side sill construction which permits lower side sills and corresponding greater capacity is of primary value in a gondola car, it will be understood that this feature is not limited to use in this type of car. Similarly, the stub sill and brace construction are of great value in a gondola car but may also be used in, for example, a tank car in which similar problems of transmitting longitudinal forces to and from the load are involved. It will be apparent also that various modifications of the described construction are contemplated within the scope of the invention and that the details of the embodiment described above are not intended to be limiting except as they appear in the appended claims.

What is claimed is:

1. In a gondola railway car: two horizontally spaced apart rigid side sills extending from one end of the car to the other; a stub center sill disposed midway between and parallel to said side sills at one end of the car; end sill means extending transversely of said car and connecting said stub center sill to said side sills; horizontal plate means fixed to the top of said stub center sill and fixed to said side sills; and end wall disposed adjacent the inner .end of said stub center sill and extending upwardly and longitudinally outwardly; and inclined brace means extending upwardly and inwardly toward said end wall and having one end secured to said end wall and having the other end secured to said horizontal plate means at a location intermediate the ends of said stub center sill;

and means interconnecting the inner end of said stub center sill with said side sills and said end wall whereby rocking movement of said stub center sill about an axis transverse to said car is prevented.

2. Apparatus as in claim 1 wherein bolster means secures said horizontal plate means to said side sills.

3. Apparatus as in claim 2 wherein said stub center sill is an inverted channel member.

4. Apparatus as in claim 2 wherein said brace means includes a plate engaging said end wall over a substantial portion thereof intermediate the upper and lower edges of said end wall.

5. Apparatus as in claim 2 wherein said end wall is provided with elongated exterior horizontal reinforcing elements and wherein a plate means is disposed between and secured to the brace means and to the outermost surfaces of said reinforcing elements.

6. Apparatus as in claim 2 including side walls extending longitudinally beyond said end wall and secured to said end wall and to said horizontal plate means.

7. Apparatus as in claim 2 wherein said side sills are disposed below the level at which the maximum transverse dimension of said car must decrease as a result of the inwardly inclined clearance line stipulated for railway cars.

8. Apparatus as in claim 2 wherein said side sills, plate means, end wall, and brace means are constructed of aluminum and wherein said stub center sill is constructed of steel.

9. In a railway car having a horizontal longitudinal frame extending from one end of the car to the other .for supporting a load-carrying container having side walls and end walls, the improvement in the arrangement of said frame with an end wall comprising: an upwardly and outwardly inclined end wall; a flat plate of substantial width and length, but of lesser area than said end wall secured to the outside surface of said end wall intermediate the upper and lower edges thereof; an upwardly and longitudinally inwardly inclined brace secured to said plate and disposed on the center line of said car; support means for said brace secured to the lower surface thereof and to the remainder of said frame, said support means including a stub center sill and end sill means, the latter extending transversely of the car and connecting said stub center sill to said frame, said brace being disposed intermediate the ends of said stub center sill; and means interconnecting the inner end of said stub center sill with said frame and said end wall, whereby said brace and said interconnecting means prevent rocking movement of said stub center sill about an axis transverse to said car.

10. Apparatus as in claim 9 wherein said end wall is provided with vertically spaced elongated exterior horizontal reinforcing members and wherein said plate is secured to the outermost surfaces of said members.

11. Apparatus as in claim 9 wherein the side walls of said car extend beyond said end wall and are secured to said end wall and to said support means.

12. Apparatus as in claim 9 wherein said center sill is an inverted channel member.

13. In a railway car having longitudinal frame members extending substantially the length of the car on each side of the centerline thereof for supporting a load carrying container having side and end walls, the improvement which comprises: a stub center sill disposed at one end of said car along the centerline thereof; plate means overlying said center sill and rigidly interconnecting said stub center sill to the frame members on either side thereof; a brace directly above said stub center sill, said brace extending upwardly and inwardly and including a hollow triangular member secured along one edge to said plate and disposed intermediate the ends of said stub center sill so as to abut an end wall of said load-carrying container; and means interconnecting the inner end of said stub center sill with said longitudinal frame members and said end wall, whereby said brace and interconnecting means prevent rocking movement of said stub center sill about an axis transverse to said car.

14. In a gondola railway car: two horizontally spaced apart rigid side sills extending from one end of the car to the other, each of said side sills including a channel member facing outwardly of said car, each channel member having an upper leg, a lower leg offset inwardly from said upper leg and a downwardly and inwardly inclined web; a stub center sill disposed midway between and parallel to said side sills at one end of the car; end sill means extending transversely of said car and connecting said stub center sill to said side sills; horizontal plate means fixed to the top of said stub center sill and fixed to said side sills; an end wall disposed adjacent the inner end of said stub center sill and extending upwardly and longitudinally outwardly; inclined brace means disposed inwardly from the outer end of said stub center sill, said brace means being secured to the top of said plate means opposite said stub center sill at a location intermediate the ends of said stub center sill and secured to the outside surface of said end wall, said brace means extending upwardly and inwardly toward said end wall and means interconnecting the inner end of said stub center sill with said side sills and said end wall whereby said brace and interconnecting means prevent rocking movement of said stub center sill about an axis transverse to said car.

References Cited by the Examiner UNITED STATES PATENTS 852,935 5/1907 Dodds -247 956,841 '5/1910 Becker -a 105'247 1,400,867 12/1921 Campbell 105247 1,605,635 11/1926 Anderson 105-247 2,180,530 ll/ 1939 Kassler et al 10525 3 2,286,954 6/1942 Clarke et al. 105-418 2,565,678 8/1951 Dean 105419 2,620,751 12/ 1952 Watter 105-416 2,754,770 7/1956 Cooke 105406 2,865,309 12/1958 Lich 105406 3,139,841 7/ 1964 Krause 105360 OTHER REFERENCES Railroad Locomotives and Cars, April 1960, pp. 27- 29, Gondolas Have Aluminum Bodies.

ARTHUR -L. LA POINT, Primary Examiner.

MILTON BUCHLER, Examiner.

D. E. HOFFMAN, Assistant Examiner.

Claims

1. IN A GONDOLA RAILWAY CAR; TWO HORIZONTALLY SPACED APART RIGID SIDE SILLS EXTENDING FROM ONE END OF THE CAR TO OTHER; A STUB CENTER SILL DISPOSED MIDWAY BETWEEN AND PARALLEL TO SAID SIDE SILLS AT ONE OF THE CAR; END SILL MEANS EXTENDING TRANSVERSELY OF SAID CAR AND CONNECTING SAID STUB CENTER SILL TO SAID SIDE SILLS; HORIZONTAL PALTE MEANS FIXED TO THE TOP OF SAID STUB CENTER SILL AND FIXED TO SAID SIDE SILLS; AND END WALL DISPOSED ADJACENT THE INNER END OF SAID STUB CENTER SILL AND EXTENDING UPWARDLY AND LONGITUDINALLY OUTWARDLY; AND INCLINED BRACE MEANS EXTENDING UPWARDLY AND INWARDLY TOWARD SAID END WALL AND HAVING ONE END SECURED TO SAID END WALL AND HAVING THE OTHER END SECURED TO SAID HORIZONTAL PLATE MEANS AT A LOCATION INTERMEDIATE THE ENDS OF SAID STUB CENTER SILL; AND MEANS INTERCONNECTING THE INNER END OF SAID STUB CENTER SILL WITH SAID SIDE SILLS AND SAID END WALL WHEREBY ROCKING MOVEMENT OF SAID STUB CENTER SILL ABOUT AN AXIS TRASVERSE TO SAID CAR IS PREVENTED.