US3577934A - Transition reinforcement for fishbelly underframe - Google Patents
Transition reinforcement for fishbelly underframe Download PDFInfo
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- US3577934A US3577934A US755880A US3577934DA US3577934A US 3577934 A US3577934 A US 3577934A US 755880 A US755880 A US 755880A US 3577934D A US3577934D A US 3577934DA US 3577934 A US3577934 A US 3577934A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F1/00—Underframes
- B61F1/04—Underframes of triangulated type
Definitions
- This invention relates to a railway car underframe of the fishbelly type which generally consists of a-central section, end sections, and transition sections connecting the end sections to the center section.
- the center section is of considerably deeper design than the end sections and thus the transition section is provided for connecting the sections together as a unitary structure.
- The'underframe or center sill is of box-type construction comprising longitudinally extending transversely spaced parallel webs having a topplate and a bottom plateextending the length of the sections and conforming to the shape thereof.
- Underframes of the fishbelly center sill construction generally are subjected to heavy concentrated bending and axial stresses in the transition section as a result of end-.of car impacts and vertical loads on the underframe.
- a reinforcement structure is necessary in the transition section and it is within this field of art wherein the invention resides.
- the present invention provides an improved reinforcing structure for the transition section which will greatly facilitate manufacture in that the positioning of the reinforcement plates is not critical and yet the desired distribution of stresses is obtained despite any manufacturing variations which may occur.
- the invention relates to an improved reinforcement structure for the transition sections of a fishbelly type of underframe or center sill.
- the structure comprises plates disposed between the webs of the center sill with each of the plates having lower edge portions extending longitudinally with the webs and with the bottom edgesof each plate being connected to the bottom plate of the sill and the upper edges of each plate being connected to the web.
- the plates extend diagonally generally upright and the bottom edges are welded to the bottom plate in the area of the bend line so as to have portions of the bottom edges disposed longitudinally on opposite sides of said bend line.
- FIG. 3 is a side elevational view through a transition section of an underframe
- FIG. 4 is a cross-sectional view taken along the line 4-4 of FIG. 2;
- FIG. 5 is a side elevational view of a transition section of a railway car underframe having a portion of a web broken away DESCRIPTION OF THE PREFERRED EMBODIMENT
- the underframe 10 comprises a center section 12 and end sections 13 suitably connected to the center section 12 by means of transition sections 14.
- the underframe I0 is of a box-type'construction including longitudinally extending vertical webs 15 having suitably welded thereto a bottom plate 16.
- the vertical webs 15 in the location of the center section 12 are relatively deep and the end sections 13 are relatively shallow.
- the webs IS in the transition sections are shaped to merge from the greater depth of the center sections to the shallower depth of the end sections, as best shown in FIG. 3.
- The'bottom plate I6, as best shown in FIG. I, conforms to the changes in depth of the sections.
- a top plate17, as best shown in FIG. 4 is suitably welded to the upper ends of the webs I5 .and may form the floor or platform of the railway car.
- the bottom plate 16 in the area where the transition section 14 is joined to each end section I3, is provided with a bend 18 forming an angle A in said bottom plate 16 of less than
- the reference character 19 refers to a transverse bend line or plane, as best indicated in FIG. 3.
- a reinforcement structure is generally designated at 20 and comprises a pair of plates 21 disposed between the webs 15.
- Each of the plates 21 is provided with lower edges 22 which conform to the shape of the bottom plate 16 as best indicated in FIG. 2 which are rigidly welded to said bottom plate 16.
- Upper edges 23 are suitable welded to the webs 15 adjacent the top plate 17 as best shown in FIG. 4.
- FIGS. 2 and 4 include bottom edges 25 connected to the bottom plate 16 and upperedges'26 connected to the side webs 15.
- the reinforcement structure 20 provides for suitable stress distribution to satisfactorily accommodate the stresses to which an underframe of this type is subjected.
- the positioning of the plates 2l' is not critical relative to the transverse bend 18, it being sufficient to have substantial portions of the bottom edges 22 disposed on opposite sides of the bend plane 19.
- the plates 21 are approximately positioned and the criticality of the aforementioned patented structure is not required.
- the bend in the bottom cover plate 16 need not be as carefully controlled in this improved design which again permitsgreater manufacturing tolerances.
- the plates 21 are further provided with relief notches 21' to reduce any possibility of weld fatigue problems at the lower edges 22.
- FIGS. 5 and 6 disclose a modified embodiment.
- the plates 21 have their bottom edges 22 shaped'to conform to the shape of the bottom cover plate 16 in the transition section.
- shaping of the lower edges is not required in that a reinforcement structure designated at 30 comprises two pairs of plates, each pair having a plate 31 and a plate 32.
- the plate 31 has an upper edge 33 suitably connected to the web 15 and the plate 32 has an upper edge 34 suitably connected to the web 15.
- Lower or bottom edges 35 of the plates 32 are suitably connected to the bottom plate 16 and lower or bottom edges 36-of the plates 31 are similarly suitably connected to the bottom plate 16.
- the plates 31 and 32 are positioned in overlapping relation, the plate 32 having a vertical edge .38
- the plate 31 is positioned on one side of the bend plane 19 and the plate 31 has a vertical edge 39 positioned on the other side of the bend plane 19 so that the plates are in overlapping relation.
- the plates 31 and 32 are respectively provided with relief notches 31 and 32' to reduce possible weld fatigue along the welds at the edges 36-35.
- the double plate construction performs the same function as the single plate with the shaped lower edge of the aforementioned embodiment.
- the plates 31 and 32 may be tack-welded together as indicated along the edge 38 in FIG. 5.
- the reinforcement structure 30 further includes, as best shown in FIG. 6, a triangular-shaped gusset 40 suitably welded to the outer surface of each web and to the bottom plate 16.
- the advantages of the plurality of plates 31 and 32 is that they eliminate the necessity of the shaping of the lower edge of a single reinforcement plate to conform to shape of the bottom plate 16. While two plates 31 and 32 have been shown, a greater number may be utilized as long as each of the plates has vertical edges disposed on opposite sides of the bend plane 19.
- a longitudinally extending center sill underframe structure railway car having opposite end sections, a center section and a pair of transition sections connecting said center section with said opposite end sections, each of said sections including laterally spaced vertical side webs and top cover plate means and bottom cover plate means fixed to said vertical webs, said center section being of greater depth than said end sections, said transition sections having a varying depth being greater at the center section and lesser at the end sections, said bottom cover plate means having a center plate portion extending horizontally along said center section and having inclined plate portions sloping upwardly from said center section through each of said transition sections and having end plate portions extending substantially coextensive with said end sections, and bent portions each having a distinct angle less than 180 and a transversely extending apex, and each bend portion joining a respective of said inclined plate portions to a respective of said end plate portions, the improvement comprising:
- each said transition section and end section including a pair of generally upright longitudinally extending inboard slope plates disposed between said webs,
- each slope plate having upper and bottom longitudinally extending edge portions
- each of said upper edge portions being rigidly connected to the upper inner side of an adjacent respective side web and each of said bottom edge portions being rigidly connected to each respective of said inclined plate portions and each respective of said end plate portions, each of said bottom edge portions being spaced away from a respective side web and longitudinally on opposite sides of a respective apex, and
- each of said bottom edge portions of said slope plates conforming generally in shape to the respective bend portion.
- said reinforcement means further including generally upright outboard slope plates each disposed outwardly of a respective of said webs, each outboard slope plate having longitudinally extending upper and bottom edge portions respectively rigidly connected to a respective of said webs and said inclined plate portion and said end plate portions,
- each of said outboard plate bottom edge portions of said outwardly disposed plates extending longitudinally on opposite sides of a respective apex and being spaced away from a respective web.
- each transition section and end section including at least a pair of plate structures disposed between said webs, each plate structure sloping down from and away from a respective web to the bottom plate means,
- each plate structure including first and second sloped adjacent plate members each having longitudinally extending upper and bottom edge portions, each of said upper edge portions being connected to a respective web,
Abstract
A railway car underframe of the fishbelly type wherein transition sections connected between the end section and a center section include a reinforcement structure in the area of the transverse bend line of the bottom plate, the structure comprising upright plates located between and connected to spaced vertical webs of the underframe, with the plates extending longitudinally with the webs, and having their lower edges connected to the bottom plates on longitudinally spaced opposite sides of the bend line, said structure improving the stress distribution on the transition section bottom plate.
Description
United States Patent Inventors Jack E. Gutridge Dyer, lnd.; Kent N. Johnson, South Holland; John H. Spence, Chicago Heights, 111. Appl. No. 755,880 Filed Aug. 28, 1968 Patented May 11, 1971 Assignee Pullman Incorporated Chicago, Ill.
TRANSITION REINFORCEMENT FOR FISHBELLY UNDERFRAME 7 Claims, 6 Drawing Figs.
U.S. Cl 105/414, 105/413, 105/417 Int. Cl B61f l/02 Field of Search 105/368 (B),414,418,422,413
References Cited UNlTED STATES PATENTS 998,697 7/ 191 1 King 105/414 1,097,800 5/1914 Hamilton 105/414 3,145,666 8/1964 Spence et al 105/416 3,163,129 12/1964 Gutridge 105/368(B) 3,207,086 9/1965 Larssen et al. 105/414 3,238,899 3/1966 Gutridge et al. 105/414 3,313,246 4/1967 K00 IDS/368(3) Primary Examiner-Arthur L. La Point Assistant ExaminerRichard A. Bertsch Att0rneysHilmond O. Vogel and Wayne Morris Russell ABSTRACT: A railway car underframe of the fishbelly type wherein transition sections connected between the end section and a center section include a reinforcement structure in the area of the transverse bend line of the bottom plate, the structure comprisingupright plates located between and connected to spaced vertical webs of the underframe, with the plates extending longitudinally with the webs, and having their lower edges connected to the bottom plates on longitudinally spaced opposite sides of the bend line, said structure improving the stress distribution on the transition section bottom plate.
ll/ km? PATENTED HAY] 1 IBYI SHEET 1 OF 2 INVENTORS JACK E. GUTRIDGE KEN T N. JOHNSON j w- SPEN E A T T Y.
PATENTED MAY] 1 IQTI 8, 577.934
SHEET 2 or 2 INVENTORS JACK E. GUTRIDGE KENTN JOHNSON JOHNyPENC W;
- ATT Y.
TRANSITION REINFORCEMENT FOR FISHBELLY UNDERFRAME BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a railway car underframe of the fishbelly type which generally consists of a-central section, end sections, and transition sections connecting the end sections to the center section. The center section is of considerably deeper design than the end sections and thus the transition section is provided for connecting the sections together as a unitary structure. The'underframe or center sill is of box-type construction comprising longitudinally extending transversely spaced parallel webs having a topplate and a bottom plateextending the length of the sections and conforming to the shape thereof. Underframes of the fishbelly center sill construction generally are subjected to heavy concentrated bending and axial stresses in the transition section as a result of end-.of car impacts and vertical loads on the underframe. In order to properly distribute these stresses, a reinforcement structure is necessary in the transition section and it is within this field of art wherein the invention resides.
2. Description of the Prior Art The prior art is best disclosed in one of coapplicants patents US. Pat. No. 3,145,666 patented Aug. 25, 1964. In this patent a railway car underframe is provided with a reinforcement structure in the transition sections designed to .accommodate the concentrated stressesto' which these sections are subjected. The stresses are particularly critical in the area of the bend wherein the transition section bottom plate meets with the beginning marginal edge of the end sections. This bend is atransversely extending bend line and in the patent suitable transverse plates are rigidly welded to the side webs of the underframe and extend laterally between the said webs. The lower edges of the transverse reinforcement plates must be accurately welded to the bottom plate along the transverse bend line in order to effectuate the proper distribution of impact stresses. Due to manufacturing variations and tolerances it is difficult to consistently properly locate and weld the lower edges of the transverse plates in an accurate manner, which .is a critical requirement, and thus the manufacturing operation is difficult to perform. The present invention provides an improved reinforcing structure for the transition section which will greatly facilitate manufacture in that the positioning of the reinforcement plates is not critical and yet the desired distribution of stresses is obtained despite any manufacturing variations which may occur. I
SUMMARY The invention relates to an improved reinforcement structure for the transition sections of a fishbelly type of underframe or center sill. The structure comprises plates disposed between the webs of the center sill with each of the plates having lower edge portions extending longitudinally with the webs and with the bottom edgesof each plate being connected to the bottom plate of the sill and the upper edges of each plate being connected to the web. The plates extend diagonally generally upright and the bottom edges are welded to the bottom plate in the area of the bend line so as to have portions of the bottom edges disposed longitudinally on opposite sides of said bend line.
'BRIEF DESCRIPTION OF THE DRAWINGS FIG. I is a side elevational view of a fishbelly-type underframe or centersill adapted to be supported on railway trucks;
FIG. 2 is a cross-sectional view through a transition section taken substantially along the line 2-2 of FIG. 1;
FIG. 3 is a side elevational view through a transition section of an underframe;
FIG. 4 is a cross-sectional view taken along the line 4-4 of FIG. 2;
FIG. 5 is a side elevational view of a transition section of a railway car underframe having a portion of a web broken away DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now particularly to FIGS. 1 through 4 a railway car underframe 10 of the fishbelly type is adapted to be supported on suitable railway trucks 11. The underframe 10 comprises a center section 12 and end sections 13 suitably connected to the center section 12 by means of transition sections 14. The underframe I0 is of a box-type'construction including longitudinally extending vertical webs 15 having suitably welded thereto a bottom plate 16. The vertical webs 15 in the location of the center section 12 are relatively deep and the end sections 13 are relatively shallow. The webs IS in the transition sections are shaped to merge from the greater depth of the center sections to the shallower depth of the end sections, as best shown in FIG. 3. The'bottom plate I6, as best shown in FIG. I, conforms to the changes in depth of the sections. A top plate17, as best shown in FIG. 4 is suitably welded to the upper ends of the webs I5 .and may form the floor or platform of the railway car.
As best shown in FIG. 3, the bottom plate 16, in the area where the transition section 14 is joined to each end section I3, is provided with a bend 18 forming an angle A in said bottom plate 16 of less than The reference character 19 refers to a transverse bend line or plane, as best indicated in FIG. 3.
A reinforcement structure is generally designated at 20 and comprises a pair of plates 21 disposed between the webs 15. Each of the plates 21 is provided with lower edges 22 which conform to the shape of the bottom plate 16 as best indicated in FIG. 2 which are rigidly welded to said bottom plate 16. Upper edges 23 are suitable welded to the webs 15 adjacent the top plate 17 as best shown in FIG. 4. Outer plates 24, as
best'shown in FIGS. 2 and 4, include bottom edges 25 connected to the bottom plate 16 and upperedges'26 connected to the side webs 15.
During end-of-car impacts the reinforcement structure 20 provides for suitable stress distribution to satisfactorily accommodate the stresses to which an underframe of this type is subjected. The positioning of the plates 2l'is not critical relative to the transverse bend 18, it being sufficient to have substantial portions of the bottom edges 22 disposed on opposite sides of the bend plane 19. Thus it is sufficient for the plates 21 to be approximately positioned and the criticality of the aforementioned patented structure is not required. Further, the bend in the bottom cover plate 16 need not be as carefully controlled in this improved design which again permitsgreater manufacturing tolerances.
The plates 21 are further provided with relief notches 21' to reduce any possibility of weld fatigue problems at the lower edges 22.
DESCRIPTION OF THE MODIFIED EMBODIMENT FIGS. 5 and 6 disclose a modified embodiment. In the preferred-embodiment above, the plates 21 have their bottom edges 22 shaped'to conform to the shape of the bottom cover plate 16 in the transition section. In the modified embodiment, shaping of the lower edges is not required in that a reinforcement structure designated at 30 comprises two pairs of plates, each pair having a plate 31 and a plate 32. The plate 31 has an upper edge 33 suitably connected to the web 15 and the plate 32 has an upper edge 34 suitably connected to the web 15. Lower or bottom edges 35 of the plates 32 are suitably connected to the bottom plate 16 and lower or bottom edges 36-of the plates 31 are similarly suitably connected to the bottom plate 16.
As best shown in FIG. 5,, the plates 31 and 32 are positioned in overlapping relation, the plate 32 havinga vertical edge .38
positioned on one side of the bend plane 19 and the plate 31 has a vertical edge 39 positioned on the other side of the bend plane 19 so that the plates are in overlapping relation. The plates 31 and 32 are respectively provided with relief notches 31 and 32' to reduce possible weld fatigue along the welds at the edges 36-35.
The double plate construction performs the same function as the single plate with the shaped lower edge of the aforementioned embodiment. The plates 31 and 32 may be tack-welded together as indicated along the edge 38 in FIG. 5. The reinforcement structure 30 further includes, as best shown in FIG. 6, a triangular-shaped gusset 40 suitably welded to the outer surface of each web and to the bottom plate 16.
The advantages of the plurality of plates 31 and 32 is that they eliminate the necessity of the shaping of the lower edge of a single reinforcement plate to conform to shape of the bottom plate 16. While two plates 31 and 32 have been shown, a greater number may be utilized as long as each of the plates has vertical edges disposed on opposite sides of the bend plane 19.
It is thus apparent that an improved reinforcement structure for the transition section of a fishbelly type of railway car has been provided. Either the preferred embodiment or the modification will effectively distribute the end-of-car impact stresses to the bottom plate 16 in a manner which will decrease car maintenance and insure continued trouble-free operation of the railway car.
We claim:
1. In a longitudinally extending center sill underframe structure railway car having opposite end sections, a center section and a pair of transition sections connecting said center section with said opposite end sections, each of said sections including laterally spaced vertical side webs and top cover plate means and bottom cover plate means fixed to said vertical webs, said center section being of greater depth than said end sections, said transition sections having a varying depth being greater at the center section and lesser at the end sections, said bottom cover plate means having a center plate portion extending horizontally along said center section and having inclined plate portions sloping upwardly from said center section through each of said transition sections and having end plate portions extending substantially coextensive with said end sections, and bent portions each having a distinct angle less than 180 and a transversely extending apex, and each bend portion joining a respective of said inclined plate portions to a respective of said end plate portions, the improvement comprising:
reinforcement means for each said transition section and end section including a pair of generally upright longitudinally extending inboard slope plates disposed between said webs,
each slope plate having upper and bottom longitudinally extending edge portions,
each of said upper edge portions being rigidly connected to the upper inner side of an adjacent respective side web and each of said bottom edge portions being rigidly connected to each respective of said inclined plate portions and each respective of said end plate portions, each of said bottom edge portions being spaced away from a respective side web and longitudinally on opposite sides of a respective apex, and
each of said bottom edge portions of said slope plates conforming generally in shape to the respective bend portion.
board slope plates having opposed lower end stress relieving notched portions at each lower end thereof.
4. The invention according to claim 1, and said reinforcement means further including generally upright outboard slope plates each disposed outwardly of a respective of said webs, each outboard slope plate having longitudinally extending upper and bottom edge portions respectively rigidly connected to a respective of said webs and said inclined plate portion and said end plate portions,
each of said outboard plate bottom edge portions of said outwardly disposed plates extending longitudinally on opposite sides of a respective apex and being spaced away from a respective web.
5. The invention according to claim 4, and said bottom edge portions of said outboard slope plates conforming generally in shape to said bend portions.
6. in a longitudinally extending center sill underframe structure railway car having opposite end sections, a center section and a pair of transition sections connecting said center section with said opposite end sections, each of said sections including laterally spaced vertical side webs and top cover plate means and bottom cover plate means fixed to said vertical webs, said center section being of greater depth than said end sections, said transition sections having a varying depth being greater at the center section and lesser at the end sections, said bottom cover plate means having a center plate portion extending horizontally along said center section and having inclined plate portions sloping upwardly from said center section through each of said transition sections and having end plate portions extending substantially coextensive with said end sections, and bend portions each having a distinct angle less than and a transversely extending apex, and each bend portion joining a respective of said inclined plate portions to a respective of said end plate portions, the improvement comprising:
reinforcement means for each said transition section and end section including at least a pair of plate structures disposed between said webs, each plate structure sloping down from and away from a respective web to the bottom plate means,
each plate structure including first and second sloped adjacent plate members each having longitudinally extending upper and bottom edge portions, each of said upper edge portions being connected to a respective web,
said first and second plate members extending longitudinally on opposite sides of a respective apex in overlapping relation, said first plate member bottom edge portion being attached to said end plate portion and spaced above said inclined plate portion and said second plate member bottom edge portion being attached to said inclined plate portion and being spaced above said end plate portion.
7. The invention according to claim 6, and said reinforcement means including a generally vertical transversely extending gusset extending outward of a respective web at the respective bend portion and being connected to each web and the bottom plate means at the respective bend portion.
Claims (7)
1. In a longitudinally extending center sill underframe structure railway car having opposite end sections, a center section and a pair of transition sections connecting said center section with said opposite end sections, each of said sections including laterally spaced vertical side webs and top cover plate means and bottom cover plate means fixed to said vertical webs, said center section being of greater depth than said end sections, said transition sections having a varying depth being greater at the center section and lesser at the end sections, said bottom cover plate means having a center plate portion extending horizontally along said center section and having inclined plate portions sloping upwardly from said center section through each of said transition sections and having end plate portions extending substantially coextensive with said end sections, and bent portions each having a distinct angle less than 180* and a transversely extending apex, and each bend portion joining a respective of said inclined plate portions to a respective of said end plate portions, the improvement comprising: reinforcement means for each said transition section and end section including a pair of generally upright longitudinally extending inboard slope plates disposeD between said webs, each slope plate having upper and bottom longitudinally extending edge portions, each of said upper edge portions being rigidly connected to the upper inner side of an adjacent respective side web and each of said bottom edge portions being rigidly connected to each respective of said inclined plate portions and each respective of said end plate portions, each of said bottom edge portions being spaced away from a respective side web and longitudinally on opposite sides of a respective apex, and each of said bottom edge portions of said slope plates conforming generally in shape to the respective bend portion.
2. The invention according to claim 1, and said upper edge portions of said plates being connected to said webs in an area substantially near said top cover plate means.
3. The invention according to claim 1, and each of said inboard slope plates having opposed lower end stress relieving notched portions at each lower end thereof.
4. The invention according to claim 1, and said reinforcement means further including generally upright outboard slope plates each disposed outwardly of a respective of said webs, each outboard slope plate having longitudinally extending upper and bottom edge portions respectively rigidly connected to a respective of said webs and said inclined plate portion and said end plate portions, each of said outboard plate bottom edge portions of said outwardly disposed plates extending longitudinally on opposite sides of a respective apex and being spaced away from a respective web.
5. The invention according to claim 4, and said bottom edge portions of said outboard slope plates conforming generally in shape to said bend portions.
6. In a longitudinally extending center sill underframe structure railway car having opposite end sections, a center section and a pair of transition sections connecting said center section with said opposite end sections, each of said sections including laterally spaced vertical side webs and top cover plate means and bottom cover plate means fixed to said vertical webs, said center section being of greater depth than said end sections, said transition sections having a varying depth being greater at the center section and lesser at the end sections, said bottom cover plate means having a center plate portion extending horizontally along said center section and having inclined plate portions sloping upwardly from said center section through each of said transition sections and having end plate portions extending substantially coextensive with said end sections, and bend portions each having a distinct angle less than 180* and a transversely extending apex, and each bend portion joining a respective of said inclined plate portions to a respective of said end plate portions, the improvement comprising: reinforcement means for each said transition section and end section including at least a pair of plate structures disposed between said webs, each plate structure sloping down from and away from a respective web to the bottom plate means, each plate structure including first and second sloped adjacent plate members each having longitudinally extending upper and bottom edge portions, each of said upper edge portions being connected to a respective web, said first and second plate members extending longitudinally on opposite sides of a respective apex in overlapping relation, said first plate member bottom edge portion being attached to said end plate portion and spaced above said inclined plate portion and said second plate member bottom edge portion being attached to said inclined plate portion and being spaced above said end plate portion.
7. The invention according to claim 6, and said reinforcement means including a generally vertical transversely extending gusset extending outward of a respective web at the respective bend portion and being connected to each web and the bottom plate means at the respective bend portion. >
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75588068A | 1968-08-28 | 1968-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3577934A true US3577934A (en) | 1971-05-11 |
Family
ID=25041057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US755880A Expired - Lifetime US3577934A (en) | 1968-08-28 | 1968-08-28 | Transition reinforcement for fishbelly underframe |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3577934A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3774554A (en) * | 1971-12-13 | 1973-11-27 | Pullman Inc | Railway passenger vehicle underframe construction |
| US4194451A (en) * | 1978-02-27 | 1980-03-25 | Pullman Incorporated | Railway car center sill |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US998697A (en) * | 1909-12-02 | 1911-07-25 | American Car & Foundry Co | Car-underframe. |
| US1097800A (en) * | 1912-09-12 | 1914-05-26 | Bettendorf Co | Underframe for cars. |
| US3145666A (en) * | 1962-03-29 | 1964-08-25 | Pullman Inc | Railway car center sill |
| US3163129A (en) * | 1964-04-01 | 1964-12-29 | Pullman Inc | Skeleton car with long travel cushioning characteristics for transporting freight containers |
| US3207086A (en) * | 1963-07-05 | 1965-09-21 | Acf Ind Inc | Railway car |
| US3238899A (en) * | 1964-03-18 | 1966-03-08 | Pullman Inc | Railway car underframe construction |
| US3313246A (en) * | 1965-05-03 | 1967-04-11 | Acf Ind Inc | Railway car |
-
1968
- 1968-08-28 US US755880A patent/US3577934A/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US998697A (en) * | 1909-12-02 | 1911-07-25 | American Car & Foundry Co | Car-underframe. |
| US1097800A (en) * | 1912-09-12 | 1914-05-26 | Bettendorf Co | Underframe for cars. |
| US3145666A (en) * | 1962-03-29 | 1964-08-25 | Pullman Inc | Railway car center sill |
| US3207086A (en) * | 1963-07-05 | 1965-09-21 | Acf Ind Inc | Railway car |
| US3238899A (en) * | 1964-03-18 | 1966-03-08 | Pullman Inc | Railway car underframe construction |
| US3163129A (en) * | 1964-04-01 | 1964-12-29 | Pullman Inc | Skeleton car with long travel cushioning characteristics for transporting freight containers |
| US3313246A (en) * | 1965-05-03 | 1967-04-11 | Acf Ind Inc | Railway car |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3774554A (en) * | 1971-12-13 | 1973-11-27 | Pullman Inc | Railway passenger vehicle underframe construction |
| US4194451A (en) * | 1978-02-27 | 1980-03-25 | Pullman Incorporated | Railway car center sill |
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| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: PULLMAN STANDARD INC., 200 S. MICHIGAN AVE., CHICA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:M.W. KELLOGG COMPANY, THE;REEL/FRAME:004370/0168 Effective date: 19840224 |