US3703239A - Center brace filter and center plate assembly - Google Patents

Center brace filter and center plate assembly Download PDF

Info

Publication number
US3703239A
US3703239A US98243A US3703239DA US3703239A US 3703239 A US3703239 A US 3703239A US 98243 A US98243 A US 98243A US 3703239D A US3703239D A US 3703239DA US 3703239 A US3703239 A US 3703239A
Authority
US
United States
Prior art keywords
center
brace
plate
walls
center brace
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 - Lifetime
Application number
US98243A
Inventor
Loree Elwyn Furniss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Buckeye Steel Castings Co
Original Assignee
Buckeye Steel Castings Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Buckeye Steel Castings Co filed Critical Buckeye Steel Castings Co
Application granted granted Critical
Publication of US3703239A publication Critical patent/US3703239A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/16—Centre bearings or other swivel connections between underframes and bolsters or bogies

Definitions

  • the present invention relates to the underframe of a railway vehicle such as a freight car, and more specifically pertains to improvements in the structure between the vertical walls of the center sill in the area of the body bolster and to improvements in the mounting of the center plate.
  • An object of the present invention is to provide a center plate of high tensile strength which may be fitted into the bottom portion of the center brace so as to provide greater resistance to wear and deformation as a consequence of impact loads and to provide a higher resistance to fatigue cracks.
  • Another object of the invention is to provide a center brace for mounting within the center sill of a railway car to provide walls which resist the shear strains imposed by the central portion of the body bolster with the walls of the center brace spaced fore and aft of a bolster center line and approximately in line with the bolster diaphragm plates and thereby provide improved strength from one corner of the center brace diagonally to another corner thereof where the lines of maximum force are applied when rocking occurs.
  • FIG. 1 is a sectional plan view of a portion of the center sill in the area of the body bolster and taken on the line 1-1 ofFIG. 2;
  • FIG. 2 is a longitudinal sectional view taken on the line 2-2 of FIG. 1;
  • FIG. 3 is a transverse sectional view taken on the line 3-3 of FIG. 2;
  • FIG. 4 is a plan view of the center plate structure and taken on the line 44 of FIG. 3.
  • the center sill is of conventional construction and includes lateral flanges 12 and 14 at the lower ends of the side walls 10 and 11.
  • the body bolster diaphragm plates are indicated at 16 and 17.
  • the rear end portion of a draft rigging for a coupler is shown at 15.
  • the present invention is directed to the structure which is mounted within and substantially fills the space between the walls 10 and 11 of the center sill in the vicinity of the body bolster and in the area over the center plate.
  • the center brace is formed of two complementary portions or members 21 and 22 welded to each other as indicated at 25 or the center brace may be formed of one piece.
  • the member 21 as shown in FIG. 1 includes draft lugs 28 and this portion of the center brace has a vertical wall 29 which lies along the inner face of the side walls 10 of the center sill.
  • the member 22 is similarly formed and includes a draft lug 31 formed integral with the wall portion 32 which lies along the inner face of the side wall 11 of the center sill.
  • the walls 29 and 32 desirably extend towards the mid-portion of the underframe and beyond the center plate area as shown at 33 and 34 in FIG. 1.
  • the center brace is formed with shear walls 37 to deal with the stress imposed by the center portion of a body bolster. These walls 37 are spaced fore and aft the bolster center line and approximately in line respectively with the diaphragm plates 16 and 17 of the body bolster as best shown in FIG. 1.
  • the walls 37 may be provided with openings 39 for weight reducing purposes and to facilitate casting but they are solid from comer to diagonal corner where the maximum forces are applied when rocking of the car body occurs. It will be noted that the top surfaces of the walls 37 are recessed as indicated at 42 in FIG. 3 to avoid interference with the weld area of the center sill.
  • the center plate assembly includes a rectangular shaped plate portion 48 which is best shown in FIG. 4.
  • the plate portion of the center plate assembly is disposed longitudinally of the center sill structure as will be apparent from consideration of FIG. 1.
  • the plate portion 48 fits within a cavity in the lower portion of the center brace and the edge portions of the plate 48 are welded by means of butt welds 51 which are applied at the fore and aft edges of the center plate casting.
  • the center plate casting may be reinforced by means of radially disposed ribs 53 as shown in FIG. 4 and the center brace may be strengthened in the vicinity of the center plate by radially disposed webs 50.
  • the center plate bowl is relieved at 56 (FIG. 3) on each side to avoid interference with the inside lower corners of the center sill.
  • a center brace and center plate assembly for the center sill structure of a railway vehicle comprising, a center brace within said center sill structure in an area of the body bolster, said center brace having walls extending along opposite inner faces of the center sill structure and fore and aft walls spaced from each other longitudinally of the center sill structure and spanning space between the first said walls a center plate structure including a rectangular shaped plate portion underlying said center brace, weld material joining the fore and aft edges of the plate portion of the center plate structure to said center brace.
  • a center brace and center plate assembly according to claim 1 including radially disposed webs on the center brace overlying and extending radially of the center plate structure.
  • the center brace is composed of (1) two complimentary castings each having a wall extending along an inner face of the center sill, a radially disposed web integral with the said wall, fore and aft walls spaced longitudinally of the center sill structure and terminating in a radial web, the last said radial webs of the two castings being disposed against each other and welded together to join the castings to form the center brace, a socket in the bottom of the center brace, and (2) a separate center plate comprising a plate disposed in the said socket, said plate being welded adjacent its fore and aft edges to the center brace.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

A center brace for mounting within the center sill of a railway car in the area of the underframe over the center plate and where the body bolster intersects the center sill and to provide an improved mounting of the center plate on the center brace.

Description

[4 1 Nov. 21, 1972 Lusink et al.................213/57 Hankins et al...............2l3/57 Blattner.......................2l3/57 Couch.........................213/57 ABSTRACT References Cited UNITED STATES PATENTS 5 Claims, 4 Drawing Figures Primary Examiner-Gerald M. Forlenza Assistant Examiner--Howard Beltran Att0rneyClelle W. Upchurch A center brace for mounting within the center sill of a railway car in the area of the underframe over the center plate and where the body bolster intersects the center sill and to provide an improved mounting of the center plate on the center brace.
Loree Elwyn Furniss, Casa Grande, Ariz.
pany, Columbus, Ohio Dec. 15, 1970 ..B61i l/l4, B6lf 5/16, B6lg 7/10 PLATE ASSEMBLY [72] Inventor:
Int.
Field of Search......
United States Patent Furniss [54] CENTER BRACE FILTER AND CENTER [73] Assignee: The Buckeye Steel Castings Com- [22] Filed:
[21} Appl. No.: 98,243
INVENTOI? ATTORNEY SHEET 1 OF 3 LOREE ELWYN FUR/W55 (9 .4. LL
PATENTED Nov 2 I972 CENTER BRACE FILTER AND CENTER PLATE ASSEMBLY The present invention relates to the underframe of a railway vehicle such as a freight car, and more specifically pertains to improvements in the structure between the vertical walls of the center sill in the area of the body bolster and to improvements in the mounting of the center plate.
It is now permissible for the center of gravity of a loaded freight car to be at a higher position than in the past and some railway vehicles have greater spacing between the trucks. Such railway cars often develop severe rocking at certain critical speeds. One consequence of such rocking movements results in the lifting of the wheels off the rails leading to derailment. Another result of such rocking movements provides increased wear on the body center plate and on the bolster center plate. The rocking of a railway car provides unequal reactions on the car body bolster when the support of the load shifts from the center plate to one of the side bearings and then shifts back to the center plate then onto the side bearing at the other side of the car body. Such shifting of the reactions becomes detrimental to the body bolster when the portion in the vicinity of the center sill is not properly braced. This shifting causes fatigue cracks to develop in the top portion of the center plate around the periphery of the bowl portion. The cracks develop on either side near the center line of the body bolster. The center filler which has for many years given satisfactory service develops fatigue cracks in the partial cross-walls as a result of the rocking of the car body.
An object of the present invention is to provide a center plate of high tensile strength which may be fitted into the bottom portion of the center brace so as to provide greater resistance to wear and deformation as a consequence of impact loads and to provide a higher resistance to fatigue cracks.
Another object of the invention is to provide a center brace for mounting within the center sill of a railway car to provide walls which resist the shear strains imposed by the central portion of the body bolster with the walls of the center brace spaced fore and aft of a bolster center line and approximately in line with the bolster diaphragm plates and thereby provide improved strength from one corner of the center brace diagonally to another corner thereof where the lines of maximum force are applied when rocking occurs.
Other objects and features of the invention will be appreciated and become apparent to those skilled in the art as the present disclosure proceeds, and upon consideration of the accompanying drawings taken with the following detailed description wherein an exemplary embodiment of the invention is disclosed.
In the drawings:
FIG. 1 is a sectional plan view of a portion of the center sill in the area of the body bolster and taken on the line 1-1 ofFIG. 2;
FIG. 2 is a longitudinal sectional view taken on the line 2-2 of FIG. 1;
FIG. 3 is a transverse sectional view taken on the line 3-3 of FIG. 2; and
FIG. 4 is a plan view of the center plate structure and taken on the line 44 of FIG. 3.
Referring to the drawings, there is shown at 10 and 1 l the vertical walls of a center sill structure for a railway vehicle. The center sill is of conventional construction and includes lateral flanges 12 and 14 at the lower ends of the side walls 10 and 11. The body bolster diaphragm plates are indicated at 16 and 17. The rear end portion of a draft rigging for a coupler is shown at 15.
The present invention is directed to the structure which is mounted within and substantially fills the space between the walls 10 and 11 of the center sill in the vicinity of the body bolster and in the area over the center plate. In the embodiment shown in the drawings the center brace is formed of two complementary portions or members 21 and 22 welded to each other as indicated at 25 or the center brace may be formed of one piece. The member 21 as shown in FIG. 1 includes draft lugs 28 and this portion of the center brace has a vertical wall 29 which lies along the inner face of the side walls 10 of the center sill. The member 22 is similarly formed and includes a draft lug 31 formed integral with the wall portion 32 which lies along the inner face of the side wall 11 of the center sill. The walls 29 and 32 desirably extend towards the mid-portion of the underframe and beyond the center plate area as shown at 33 and 34 in FIG. 1.
The center brace is formed with shear walls 37 to deal with the stress imposed by the center portion of a body bolster. These walls 37 are spaced fore and aft the bolster center line and approximately in line respectively with the diaphragm plates 16 and 17 of the body bolster as best shown in FIG. 1. The walls 37 may be provided with openings 39 for weight reducing purposes and to facilitate casting but they are solid from comer to diagonal corner where the maximum forces are applied when rocking of the car body occurs. It will be noted that the top surfaces of the walls 37 are recessed as indicated at 42 in FIG. 3 to avoid interference with the weld area of the center sill.
Another feature of the invention is the provision of a center plate structure 46 which is formed of high tensile steel and which fits into the lower portion of the center brace. The center plate is provided with a vertical opening 47 for the king pin. The center plate assembly includes a rectangular shaped plate portion 48 which is best shown in FIG. 4. The plate portion of the center plate assembly is disposed longitudinally of the center sill structure as will be apparent from consideration of FIG. 1. The plate portion 48 fits within a cavity in the lower portion of the center brace and the edge portions of the plate 48 are welded by means of butt welds 51 which are applied at the fore and aft edges of the center plate casting. The center plate casting may be reinforced by means of radially disposed ribs 53 as shown in FIG. 4 and the center brace may be strengthened in the vicinity of the center plate by radially disposed webs 50. The center plate bowl is relieved at 56 (FIG. 3) on each side to avoid interference with the inside lower corners of the center sill.
While draft lugs have been shown as forming a part of the center brace it will be appreciated that they may be omitted and that the center brace may be formed as a one piece casting. These and other modifications may be made without departing from the spirit and scope of the invention as set forth in the appended claims.
What is claimed and desired to be secured by Letters Patent is:
l. A center brace and center plate assembly for the center sill structure of a railway vehicle comprising, a center brace within said center sill structure in an area of the body bolster, said center brace having walls extending along opposite inner faces of the center sill structure and fore and aft walls spaced from each other longitudinally of the center sill structure and spanning space between the first said walls a center plate structure including a rectangular shaped plate portion underlying said center brace, weld material joining the fore and aft edges of the plate portion of the center plate structure to said center brace.
2. A center brace and center plate assembly according to claim 1 including radially disposed webs on the center brace overlying and extending radially of the center plate structure.
3. The assembly of claim 1 wherein said center brace has a rectangularly shaped socket in the bottom thereof and the said rectangular plate of the center plate is disposed in the socket.
4. The assembly of claim 1 wherein the center plate is high tensile steel.
5. The assembly of claim 1 wherein the center brace is composed of (1) two complimentary castings each having a wall extending along an inner face of the center sill, a radially disposed web integral with the said wall, fore and aft walls spaced longitudinally of the center sill structure and terminating in a radial web, the last said radial webs of the two castings being disposed against each other and welded together to join the castings to form the center brace, a socket in the bottom of the center brace, and (2) a separate center plate comprising a plate disposed in the said socket, said plate being welded adjacent its fore and aft edges to the center brace.

Claims (5)

1. A center brace and center plate assembly for the center sill structure of a railway vehicle comprising, a center brace within said center sill structure in an area of the body bolster, said center brace having walls extending along opposite inner faces of the center sill structure and fore and aft walls spaced from each other longitudinally of the center sill structure and spanning space between the first said walls a center plate structure including a rectangular shAped plate portion underlying said center brace, weld material joining the fore and aft edges of the plate portion of the center plate structure to said center brace.
1. A center brace and center plate assembly for the center sill structure of a railway vehicle comprising, a center brace within said center sill structure in an area of the body bolster, said center brace having walls extending along opposite inner faces of the center sill structure and fore and aft walls spaced from each other longitudinally of the center sill structure and spanning space between the first said walls a center plate structure including a rectangular shAped plate portion underlying said center brace, weld material joining the fore and aft edges of the plate portion of the center plate structure to said center brace.
2. A center brace and center plate assembly according to claim 1 including radially disposed webs on the center brace overlying and extending radially of the center plate structure.
3. The assembly of claim 1 wherein said center brace has a rectangularly shaped socket in the bottom thereof and the said rectangular plate of the center plate is disposed in the socket.
4. The assembly of claim 1 wherein the center plate is high tensile steel.
US98243A 1970-12-15 1970-12-15 Center brace filter and center plate assembly Expired - Lifetime US3703239A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9824370A 1970-12-15 1970-12-15

Publications (1)

Publication Number Publication Date
US3703239A true US3703239A (en) 1972-11-21

Family

ID=22268302

Family Applications (1)

Application Number Title Priority Date Filing Date
US98243A Expired - Lifetime US3703239A (en) 1970-12-15 1970-12-15 Center brace filter and center plate assembly

Country Status (1)

Country Link
US (1) US3703239A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797674A (en) * 1971-05-11 1974-03-19 Buckeve Steel Castings Co Center brace filler and center plate assembly
US4180001A (en) * 1977-12-22 1979-12-25 Pullman Incorporated Center filler for railway vehicle
US4206710A (en) * 1978-05-15 1980-06-10 Pullman Incorporated Railway car center plate filler arrangement
US5135117A (en) * 1991-04-12 1992-08-04 Mcconway & Torley Corporation Combination railway car draft gear stop and bolster spacer plate apparatus
US5704296A (en) * 1996-09-13 1998-01-06 Mcconway & Torley Corporation Cast draft sill with low profile center plate
US5927521A (en) * 1997-10-02 1999-07-27 Buckeye Steel Castings Co. Lightweight and topless draft arm
US5943964A (en) * 1998-03-18 1999-08-31 Buckeye Steel Castings Light weight draft arm
US6305298B1 (en) 1997-06-30 2001-10-23 Amsted Industries Incorporated Light weight draft sill

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569606A (en) * 1946-11-05 1951-10-02 Hankins Cyrus Center sill filler assembly
US2942738A (en) * 1956-02-24 1960-06-28 Symington Wayne Corp Draft attachment
US2995258A (en) * 1958-07-29 1961-08-08 Symington Wayne Corp Cast-weld center filler
US3102643A (en) * 1958-07-29 1963-09-03 Symington Wayne Corp Cast-weld center filler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569606A (en) * 1946-11-05 1951-10-02 Hankins Cyrus Center sill filler assembly
US2942738A (en) * 1956-02-24 1960-06-28 Symington Wayne Corp Draft attachment
US2995258A (en) * 1958-07-29 1961-08-08 Symington Wayne Corp Cast-weld center filler
US3102643A (en) * 1958-07-29 1963-09-03 Symington Wayne Corp Cast-weld center filler

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797674A (en) * 1971-05-11 1974-03-19 Buckeve Steel Castings Co Center brace filler and center plate assembly
US4180001A (en) * 1977-12-22 1979-12-25 Pullman Incorporated Center filler for railway vehicle
US4206710A (en) * 1978-05-15 1980-06-10 Pullman Incorporated Railway car center plate filler arrangement
US5135117A (en) * 1991-04-12 1992-08-04 Mcconway & Torley Corporation Combination railway car draft gear stop and bolster spacer plate apparatus
US5704296A (en) * 1996-09-13 1998-01-06 Mcconway & Torley Corporation Cast draft sill with low profile center plate
US6305298B1 (en) 1997-06-30 2001-10-23 Amsted Industries Incorporated Light weight draft sill
US5927521A (en) * 1997-10-02 1999-07-27 Buckeye Steel Castings Co. Lightweight and topless draft arm
US5943964A (en) * 1998-03-18 1999-08-31 Buckeye Steel Castings Light weight draft arm
WO1999047403A1 (en) * 1998-03-18 1999-09-23 Buckeye Steel Castings Company Lightweight draft arm
AU742892B2 (en) * 1998-03-18 2002-01-17 Columbus Steel Castings Company Lightweight draft arm

Similar Documents

Publication Publication Date Title
US6978720B2 (en) Gondola railcar construction
US3703239A (en) Center brace filter and center plate assembly
US3789773A (en) Railway hopper car side wall construction
US3308769A (en) Railway tank car
US2652006A (en) Cross-bearer construction for railway cars
US3677198A (en) Draft sill arrangement for high capacity car
US2859709A (en) Body and underframe structure for mine cars
US3078814A (en) Single beam railway car
US3295465A (en) Railway vehicle underframe construction
US3670662A (en) Car body bolster center plate assembly
US3719155A (en) Railway flat car having stub center sills
US1793474A (en) Car underframe
US3631811A (en) Railway car body bolster center plate assembly
CN201833928U (en) Self-unloading automobile and compartment bottom plate structure thereof
US1950001A (en) Railway car
US728800A (en) Car construction.
US2020391A (en) Railway car
US775559A (en) Car-truck bolster.
US825030A (en) Metallic car-bolster.
US3365250A (en) Center plate assembly
US827646A (en) Bolster for railway-cars.
US2231358A (en) Car underframe
US1944421A (en) Railway car
US1938587A (en) Railway car
US2180450A (en) Center sills construction for freight cars