CA1054448A - Transition member with integral end-of-car device stop means - Google Patents
Transition member with integral end-of-car device stop meansInfo
- Publication number
- CA1054448A CA1054448A CA250143A CA250143A CA1054448A CA 1054448 A CA1054448 A CA 1054448A CA 250143 A CA250143 A CA 250143A CA 250143 A CA250143 A CA 250143A CA 1054448 A CA1054448 A CA 1054448A
- Authority
- CA
- Canada
- Prior art keywords
- sill
- transition member
- combination
- center
- draft sill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Vibration Dampers (AREA)
Abstract
TRANSITION CASTING WITH CENTER PLATE AND END OF CAR
DEVICE STOP MEANS FOR USE IN FREIGHT CARS
Abstract of the Disclosure. The invention relates to railway cars having a fixed center sill in the underframe and a standard Z type draft sill at each end and a transition member con-necting the draft sill to the fixed center sill, the transition member having a center plate extending downwardly therefrom and containing means for retaining a portion of an end of car cush-ioning device.
DEVICE STOP MEANS FOR USE IN FREIGHT CARS
Abstract of the Disclosure. The invention relates to railway cars having a fixed center sill in the underframe and a standard Z type draft sill at each end and a transition member con-necting the draft sill to the fixed center sill, the transition member having a center plate extending downwardly therefrom and containing means for retaining a portion of an end of car cush-ioning device.
Description
~0~4~48 In the past, conventional freight car construction has used a continuous sill construction having an inverted U-shape section with laterally outwardly extending lower flanges commonl~ called the AAR standard Z sill section~ In certain applications, it would be beneficial to use a tubular or tubular-like sill in combination with the end of car AAR standard ~ draft 5ill. In such cases, a transition member for connecting the two would be necessary. On certain types of cars, it would be necessary for the transition member to pass through the bolster in which case it would require the added provision of a downwardly extending center plate. Advantageously, it could contain stop means for contemporary end of car cushioning devices.
Such type of transition member could also be used with the AAR
standard Z center sill mentioned above Accordingly, it is among the objects of the present invention to provide a transition member incorporating a center plate for connecting a fixed center sill to a standard AAR 2 section draft sill and means for retaining an end of car cushioning device without deleteriously affecting strength and shock requirements.
Broadly speaking, the present invention may be defined as a transition member suitable for use in an underframe of a railway car, the transition member having a center sill end adapted to telescope into a mate with a fixed, elongated center sill and a draft sill end adapted to mate with an inverted U-shaped draft sill, ~he sills being in the underframe of a railway car, the draft sill end containing means for retaining an end of car cushioning device, the transition member having an upper and lower surface, there being a center plate extending from the lower surface thereof.
In the Drawings: Fig. l is a perspective view of an inYerted disassembled-construction according to one embodiment of A -`
,.
- :~05444E~
the invention;
Fig, 2 is a perspective view of an inverted disassembled construction according to another embodiment of the invention;
Fig. 3 is a perspective vi.ew of a port.on of an inverted AAR standard Z center sill;
~ Fig. 4 is a perspective view of a portion of a typical :~ end of car cushioning device; and Fig. 5 is a perspective view of a backstop for use with the construction of Fig. 1.
In accordance with the present invention, there is provided a construction for use in an underframe of a railway car. The construction contains one or more centrally located inverted .
.
~ - la -,.
~`' : ' . -' :
U-shaped or AAR (American Asso(~iation of Railroads) Z section draft sills disposed longitudinally at one or more ends thereof. A fixed, elongated, longitudinally extending center sill is connected to the ¦~
draft sill by a transition member. The transition mem~er has an ¦~
upper and lower surface, a draft sill end and a center sill end.
The center sill end telescopingly engages and mates with surfaces of the center sill. The draft sill end mates with the draft sill and contains a means for retaining a portion of an end of car cush-ioning device. A center plate extends from the lower surface of the transition member.
Referring to the drawings, there is shown in Fig. 1, view-ing from the bottom, a portion of a tubular center sill 5 which would be the main member of a welded or otherwise assembled under-frame of a railway car. The sill extends centrally between the body bolsters tnot shown) which normally carry the center plate or bear-ings that interface with the trucks that pivotally support the car body.
A draft sill 6 is attached to each end of the underframe and extends from the bolster to the end of the underframe. The ~0 draft sill accommodates the backstop, end of car cushioning device and coupler shank ~not shown). As shown in the drawings, the draft sill contains a laterally extending flange 10 at the lower end of ~
each side and is usually foxmed from the AAR standard Z section. , The transition member 17, which is generally formed by casting, is shown to be bo~ like or rectangular in cross-section.
~t has an upper surface 1 and a lower surface 2. It contains a ; draft sill end 3 and a tubular sill end 4. The draft sill end contains longitudinally extending sidewalls 18 with inner, opposed vertical recesses 40 for retaining the end of car cushioning de-vice of Fig. 4 in combination with the backstop of Fig. 5 which will be described subsequently. The sidewalls engage the coplaner sidewalls of ~he draft sill and mate with corresponding surfaces
Such type of transition member could also be used with the AAR
standard Z center sill mentioned above Accordingly, it is among the objects of the present invention to provide a transition member incorporating a center plate for connecting a fixed center sill to a standard AAR 2 section draft sill and means for retaining an end of car cushioning device without deleteriously affecting strength and shock requirements.
Broadly speaking, the present invention may be defined as a transition member suitable for use in an underframe of a railway car, the transition member having a center sill end adapted to telescope into a mate with a fixed, elongated center sill and a draft sill end adapted to mate with an inverted U-shaped draft sill, ~he sills being in the underframe of a railway car, the draft sill end containing means for retaining an end of car cushioning device, the transition member having an upper and lower surface, there being a center plate extending from the lower surface thereof.
In the Drawings: Fig. l is a perspective view of an inYerted disassembled-construction according to one embodiment of A -`
,.
- :~05444E~
the invention;
Fig, 2 is a perspective view of an inverted disassembled construction according to another embodiment of the invention;
Fig. 3 is a perspective vi.ew of a port.on of an inverted AAR standard Z center sill;
~ Fig. 4 is a perspective view of a portion of a typical :~ end of car cushioning device; and Fig. 5 is a perspective view of a backstop for use with the construction of Fig. 1.
In accordance with the present invention, there is provided a construction for use in an underframe of a railway car. The construction contains one or more centrally located inverted .
.
~ - la -,.
~`' : ' . -' :
U-shaped or AAR (American Asso(~iation of Railroads) Z section draft sills disposed longitudinally at one or more ends thereof. A fixed, elongated, longitudinally extending center sill is connected to the ¦~
draft sill by a transition member. The transition mem~er has an ¦~
upper and lower surface, a draft sill end and a center sill end.
The center sill end telescopingly engages and mates with surfaces of the center sill. The draft sill end mates with the draft sill and contains a means for retaining a portion of an end of car cush-ioning device. A center plate extends from the lower surface of the transition member.
Referring to the drawings, there is shown in Fig. 1, view-ing from the bottom, a portion of a tubular center sill 5 which would be the main member of a welded or otherwise assembled under-frame of a railway car. The sill extends centrally between the body bolsters tnot shown) which normally carry the center plate or bear-ings that interface with the trucks that pivotally support the car body.
A draft sill 6 is attached to each end of the underframe and extends from the bolster to the end of the underframe. The ~0 draft sill accommodates the backstop, end of car cushioning device and coupler shank ~not shown). As shown in the drawings, the draft sill contains a laterally extending flange 10 at the lower end of ~
each side and is usually foxmed from the AAR standard Z section. , The transition member 17, which is generally formed by casting, is shown to be bo~ like or rectangular in cross-section.
~t has an upper surface 1 and a lower surface 2. It contains a ; draft sill end 3 and a tubular sill end 4. The draft sill end contains longitudinally extending sidewalls 18 with inner, opposed vertical recesses 40 for retaining the end of car cushioning de-vice of Fig. 4 in combination with the backstop of Fig. 5 which will be described subsequently. The sidewalls engage the coplaner sidewalls of ~he draft sill and mate with corresponding surfaces
-2-, :
11~)54~48 thereof. The tubular sill end 4 contains a peripheral recess 21 that enbales it to mate with the tubular sill.
The transition member 17 contains a laterally extending wing 16 on the lower surface 2 which mates with the extending flange 10 of the draft sill and while not shown, may taper inwardly toward the tubular sill if desired. The member 17 has a circular boss or center plate 19 extending down from the lower surface 2. The tran-sition member would pass through a pr~vided opening in the car body bolster and the boss would mate with a circular bowl in the bolster of a railway car truck that pivotally supports the car body. A
transverse hole extending through the transition member 17 centrally of the boss 19 is provided for accommodating a king pin (not shown) ;`~
extending upwardly from the truck center plate bowl to maintain ver-tical alignment of the boss 19 and bowl.
The transition member 17 contains internal center filler structure 23 which generally consists of a plurality of ribs 24 extending between the upper and lower surfaces and cast integrally ;
therewith. This is for support of the transition member and circu lar boss which is also shown to be cast integrally in this embodi~
ment.
The tubular sill may contain a reinforcement plate 22, having a curved portion 25, attached, as by welding, to the lower surface 26 of the tubular sill. When the tubular sill is mated with the transition member, the plate 22 will rest on the lower surface 2 and the curved ~ortion 25 will mate with the circular boss 19. The plate may be welded or otherwise attached to the sur~
face.
The transition member is constructed such that when mating with the tubular sill and the draft sill, substantially all mating surfaces o the transition member are flush with substantially all mating surfaces of the draft sill and tubular sill. When itted together, the mating surfaces can be welded or otherwise secured.
1~54448 ~
This constructi~n provides for the relatively smooth flow of stresses from end to end of the railway car.
While the tubular sill has been illustrated as rectangular in cross-section, other configurations, such as circular and the like, may also ~e employed so long as the tubular sill end of the transition member is adapted to conform to that configuration for telescoping therein.
In Figs. 2 and 3, where like parts contain like numerals, there is shown one type of separable or removable center plate that may be utilized in the present invention along with other types of fixed center sills.
In Fig. 2, the transition member 17 has a relatively flat lower surface 2~ A flat plate 30 with a downwardly extending cen-ter plate 38, is fitted on the lower surface 2 and may be welded, bolted or otherwise secured thereon. Other separable center plates could be employed while not shown herein. For example, the tran-sition member could contain a box like opening through the lower surface. A 1at plate having peripheral sidewalls and an ex~ending center plate could be fitted into the lower opening and welded or otherwise secured therein.
The draft sill end 3 contains longitudinally extending sidewalls 42 with inner, opposed, vertical projections 44. These projections define a slot 46 for retaining the cushioning device ¦5 of Fig. 4. The end 3 has a peripheral recessed portion-20 that enables it to telescopingly engage the draft sill and mate with ~ -corresponding surfaces thereof.
Also, Fig. 2 illustrates use of the transition member 17 - -with a so called Weirton center sill 36. When in place in the underframe, its tubular-like cross-section can be characterized ~
as being inverted U-shaped with lateral inwardly extending flanges ;
at the lower ends.
The transition castings of the invention can be used to -4- ~
:
1~54448 connect an AAR standard Z center sill 32 ~Fig. 3) to the draf-t sill 6. When in place in the underframe, it can be characterized as inverted U-shaped in cross-section with lateral outwardly extending flanges 10 at the lower ends.
Referring to Fig. 4, there is shown a portion of an end of car cushioning device 50. It typically consists of a cylinder 51 sealed at both ends. A piston rod 52 having an external piston head 54 extends from one end. There usually is an internal piston head (not shown) which abuts a compressible material (not shown) within the cylinder in a manner well known to those skilled in the art.
In Fig~ 5, ther~ is shown a backstop 56 having a rear wall 58, a bottom wall 60 and longitudinally extending sidewalls 62. The sidewalls contain inner, opposed, vertical projections 64 which de-fine a slot 66 and external, opposed, vertical ears 68. The backstop 56 is disposed in the transition member 17 of Fig. 1 by mating the ears 68 with the recesses 40 in member 17. The piston head 54 is disposed in slot 66 and can be secured in place with interlocking plate 70. The cylinder 51 of the cushioning device 50 would be dis- `
posed in the draft sill 6 which is mated with and secured to the -member 17 when assembled.
In the transition member of Fig. 2, the construction of ¦~
the draft sill end precludes the need for an insertable backstop.
Here the piston head 54 is disposed in the slot 46 in the casting and interlocking plate 70 can be used to secure it.
While the invention has been described with re~ard to par-ticular embodiments and illustrations, it should be understood that modifications may be made therein without departing from the spirit and scope of the present invention.
Having thus described the invention in detail and with sufficient particularity as to enable those skilled in the art to practice it, what is desired to have protected by Letters Patent is set forth in the following claims.
, :
11~)54~48 thereof. The tubular sill end 4 contains a peripheral recess 21 that enbales it to mate with the tubular sill.
The transition member 17 contains a laterally extending wing 16 on the lower surface 2 which mates with the extending flange 10 of the draft sill and while not shown, may taper inwardly toward the tubular sill if desired. The member 17 has a circular boss or center plate 19 extending down from the lower surface 2. The tran-sition member would pass through a pr~vided opening in the car body bolster and the boss would mate with a circular bowl in the bolster of a railway car truck that pivotally supports the car body. A
transverse hole extending through the transition member 17 centrally of the boss 19 is provided for accommodating a king pin (not shown) ;`~
extending upwardly from the truck center plate bowl to maintain ver-tical alignment of the boss 19 and bowl.
The transition member 17 contains internal center filler structure 23 which generally consists of a plurality of ribs 24 extending between the upper and lower surfaces and cast integrally ;
therewith. This is for support of the transition member and circu lar boss which is also shown to be cast integrally in this embodi~
ment.
The tubular sill may contain a reinforcement plate 22, having a curved portion 25, attached, as by welding, to the lower surface 26 of the tubular sill. When the tubular sill is mated with the transition member, the plate 22 will rest on the lower surface 2 and the curved ~ortion 25 will mate with the circular boss 19. The plate may be welded or otherwise attached to the sur~
face.
The transition member is constructed such that when mating with the tubular sill and the draft sill, substantially all mating surfaces o the transition member are flush with substantially all mating surfaces of the draft sill and tubular sill. When itted together, the mating surfaces can be welded or otherwise secured.
1~54448 ~
This constructi~n provides for the relatively smooth flow of stresses from end to end of the railway car.
While the tubular sill has been illustrated as rectangular in cross-section, other configurations, such as circular and the like, may also ~e employed so long as the tubular sill end of the transition member is adapted to conform to that configuration for telescoping therein.
In Figs. 2 and 3, where like parts contain like numerals, there is shown one type of separable or removable center plate that may be utilized in the present invention along with other types of fixed center sills.
In Fig. 2, the transition member 17 has a relatively flat lower surface 2~ A flat plate 30 with a downwardly extending cen-ter plate 38, is fitted on the lower surface 2 and may be welded, bolted or otherwise secured thereon. Other separable center plates could be employed while not shown herein. For example, the tran-sition member could contain a box like opening through the lower surface. A 1at plate having peripheral sidewalls and an ex~ending center plate could be fitted into the lower opening and welded or otherwise secured therein.
The draft sill end 3 contains longitudinally extending sidewalls 42 with inner, opposed, vertical projections 44. These projections define a slot 46 for retaining the cushioning device ¦5 of Fig. 4. The end 3 has a peripheral recessed portion-20 that enables it to telescopingly engage the draft sill and mate with ~ -corresponding surfaces thereof.
Also, Fig. 2 illustrates use of the transition member 17 - -with a so called Weirton center sill 36. When in place in the underframe, its tubular-like cross-section can be characterized ~
as being inverted U-shaped with lateral inwardly extending flanges ;
at the lower ends.
The transition castings of the invention can be used to -4- ~
:
1~54448 connect an AAR standard Z center sill 32 ~Fig. 3) to the draf-t sill 6. When in place in the underframe, it can be characterized as inverted U-shaped in cross-section with lateral outwardly extending flanges 10 at the lower ends.
Referring to Fig. 4, there is shown a portion of an end of car cushioning device 50. It typically consists of a cylinder 51 sealed at both ends. A piston rod 52 having an external piston head 54 extends from one end. There usually is an internal piston head (not shown) which abuts a compressible material (not shown) within the cylinder in a manner well known to those skilled in the art.
In Fig~ 5, ther~ is shown a backstop 56 having a rear wall 58, a bottom wall 60 and longitudinally extending sidewalls 62. The sidewalls contain inner, opposed, vertical projections 64 which de-fine a slot 66 and external, opposed, vertical ears 68. The backstop 56 is disposed in the transition member 17 of Fig. 1 by mating the ears 68 with the recesses 40 in member 17. The piston head 54 is disposed in slot 66 and can be secured in place with interlocking plate 70. The cylinder 51 of the cushioning device 50 would be dis- `
posed in the draft sill 6 which is mated with and secured to the -member 17 when assembled.
In the transition member of Fig. 2, the construction of ¦~
the draft sill end precludes the need for an insertable backstop.
Here the piston head 54 is disposed in the slot 46 in the casting and interlocking plate 70 can be used to secure it.
While the invention has been described with re~ard to par-ticular embodiments and illustrations, it should be understood that modifications may be made therein without departing from the spirit and scope of the present invention.
Having thus described the invention in detail and with sufficient particularity as to enable those skilled in the art to practice it, what is desired to have protected by Letters Patent is set forth in the following claims.
, :
Claims (18)
1. In a railway car having an underframe, the combination of at least one centrally located inverted U-shaped draft sill dis-posed longitudinally at an end thereof, a fixed, elongated, longi-tudinally extending center sill and a transition member connecting the center sill to the draft sill, said transition member having a center sill end which telescopes into and mates with surfaces of the center sill and a draft sill end which mates with surfaces of the draft sill, said draft sill end containing means for retaining an end of car cushioning device, said transition mem-ber having an upper and lower surface, there being a center plate extending from the lower surface thereof.
2. The combination of claim 1, in which the draft sill end contains longitudinally extending sidewalls with inner, opposed, vertical projections which define a slot for retaining said cush-ioning device.
3. The combination of claim 2, in which said sidewalls telescope into said draft sill.
4. The combination of claim 1, in which the draft sill end contains longitudinally extending sidewalls with inner, opposed, vertical recesses for retaining said cushioning device.
5. The combination of claim 4, in which said sidewalls are coplaner with sidewalls of the draft sill.
6. The combination of claim 1, in which the draft sill contains a lateral outwardly extending flange at the lower end of each side thereof.
7. The combination of claim 6, in which the transition member has a laterally extending wing at the lower end of each side thereof which mates with the flange of the draft sill.
8. The combination of claim 1, in which the center sill is tubular in cross-section.
9. The combination of claim 1, in which the center sill is inverted U-shaped in cross-section and contains lateral outwardly extending flanges at the lower end thereof.
10. The combination of claim 1, in which the center sill is inverted U-shaped in cross-section and contains lateral inwardly extending flanges at the lower end thereof.
11. The combination of claim 1, in which substantially all mating surfaces of the transition member are flush with sub-stantially all mating surfaces of the draft sill and center sill.
12. The combination of claim 8, in which the tubular sill has a laterally extending plate attached to the lower end thereof for disposition on the lower surface of the transition member and mating with the center plate.
13. The combination of claim 1, in which the transition member contains center filler structure disposed therewithin.
14. The combination of claim 1, in which the center plate is integral with the transition member.
15. The combination of claim 1, in which the center plate is separable from the transition member.
16. A transition member suitable for use in an under-frame of a railway car, said transition member having a center sill end adapted to telescope into and mate with a fixed, elongated cen-ter sill and a draft sill end adapted to mate with an inverted U-shaped draft sill, said sills being in the underframe of a railway car, said draft sill end containing means for retaining an end of car cushioning device; said transition member having an upper and lower surface, there being a center plate extending from the lower surface thereof.
17. The transition member of claim 16, in which the draft sill end contains longitudinally extending sidewalls with inner, opposed, vertical projections which define a slot for re-taining said cushioning device.
18. The transition member of claim 16, in which the draft sill end contains longitudinally extending sidewalls with inner, opposed, vertical recesses for retaining said cushioning device.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US59242375A | 1975-07-02 | 1975-07-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1054448A true CA1054448A (en) | 1979-05-15 |
Family
ID=24370589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA250143A Expired CA1054448A (en) | 1975-07-02 | 1976-04-13 | Transition member with integral end-of-car device stop means |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1054448A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009062317A1 (en) * | 2007-11-16 | 2009-05-22 | National Steel Car Limited | Railroad car center sill structure |
-
1976
- 1976-04-13 CA CA250143A patent/CA1054448A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009062317A1 (en) * | 2007-11-16 | 2009-05-22 | National Steel Car Limited | Railroad car center sill structure |
| US8479661B2 (en) | 2007-11-16 | 2013-07-09 | National Steel Car Limited | Railroad car center sill structure |
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