US2853958A - Snubbed truck - Google Patents
Snubbed truck Download PDFInfo
- Publication number
- US2853958A US2853958A US482955A US48295555A US2853958A US 2853958 A US2853958 A US 2853958A US 482955 A US482955 A US 482955A US 48295555 A US48295555 A US 48295555A US 2853958 A US2853958 A US 2853958A
- Authority
- US
- United States
- Prior art keywords
- friction
- bolster
- vertical
- wedge
- truck
- 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
Links
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- B61F5/04—Bolster supports or mountings
- B61F5/12—Bolster supports or mountings incorporating dampers
- B61F5/122—Bolster supports or mountings incorporating dampers with friction surfaces
Definitions
- My invention relates to railway car trucks, and more particularly to a type of truck wherein snubbing means are mounted in each end of the bolster for cooperation with friction plates or panels on the adjacent side frame columns.
- a general object of the invention is the provision of a snubbing arrangement wherein the device is operative to resist the lateral, as well as the vertical, motion of the bolster, relative to the side frames of a railway car truck.
- a more specific object of the invention is the provision of a snubbed truck in which a pair, of spaced friction shoes are positioned in pockets at the ends of the bolster in angular relationship to each other and to the longitudinal axis of the bolster.
- Another specific object of the invention is the provision of a railway car truck in which the side frame columns offer vertical friction vsurfaces disposed in converging planes.
- Figure l is a fragmentary side elevational view of a railway car truck embodying the invention.
- Figure 2 is a partial sectional view taken in the transverse vertical plane indicated by the line 2-2 of Figure 1,
- Figure 3 is a fragmentary top plan View, partially in section, of the structure illustrated in Figure 2 being taken in the horizontal plane indicated by the line 3-3 of Figure 2, and
- Figure 4 is a vertical sectional view of the shoe pocket taken along the longitudinal axis of the bolster indicated by the line 4 4 of Figure 3.
- the truck comprises a side frame indicated generally at6, having compression and tension members 8 and 10, respectively, which are spaced from each other centrally of the frame and have their ends merged.
- Vertical columns 12 and 14 connect the tension and compression members, intermediate the ends of the frame, and are horizontally spaced from each other to define a bolster opening 16 therebetween.
- the tension member 10 is provided with upwardly extending flanges 18 which surround spring seat 20 in opening 16.
- the inward edges of the vertical columns are V-shaped and .have corresponding inboard and outboard sides 22 and 24, respectively, which converge to form points 26 opposite each other in the opening 16.
- Sides 24 are disposed in inbo-ardly converging Vertical planes, and sides 22 are disposed in outboardly converging vertical planes.
- each column intersects at the ⁇ longitudinal axis of the bolster which is indicated by line A-A and are angularly related to the longitudinal axis of the side frame which is indicated by line B-B.
- Columns 12 and 14 may be provided with V-shaped wear plates 27 welded thereto as .at 28 and which provide friction surfaces 30 parallel to and corresponding with the outer surfaces ofwalls 22 and 24 respectively.
- a plurality of coil load support springs indicated diay 2 grammatically at 34 may be positioned on the-spring seat 20 of the tension member in the opening 16 between the columns.
- Flanges 18 serve to retain the coil spring in position.
- the springs afford resilient support for a bolster indicated generally at 36 which extends transversely of the truck.
- the bolster comprises spaced top and bottom,
- Each end of the bolster is provided with a box section indicated generally at 46, which comprises spaced top and bottom walls 48 and 50. Only one end of the Vbolster and one side frame are shown as both sides of the .truck are symmetrical.
- the lower surface 42 rides on the load springs 34.
- the box section 46 may be provided with a pluralityVVV of pockets 54 spaced from each other in'angular rela? 4 tionship to each other and to the longitudinal axis of the I bolster; each of the pockets may be normal to and adfjacent one of the surfaces 30 of the columns. ⁇
- the pockets are each defined by inboard and outboardr the walls are preferably. f offset inwardly at 57 and 59, respectively, to define ak narrow inner portion of the pocket. rlfhe portions 57and l side walls 56 and 58, respectively,
- a friction shoe 66 may be positioned in each pocket.
- Each shoe is of generallyA cup-like form having front and? 4 of pocket wall 62.
- the wedge surfaces 84 may be crowned from the top to bottom to permit a rocking movement of the shoe against the associated surfaces 64 to .v
- a handle-like portion 86 of the rear wall of the shoe extends upwardly between the spaced wedge surfaces of the pocket.
- a coil friction spring 90 is positioned in the pocket between a bottom wall'50 of the pocket and the spring seat 78 of shoe wal176.
- the spring 90 urges the spring shoe upwardly causing a wedge action between surfaces 64 of the pocket and the surfaces 84 of the shoe which forces the shoe friction surface 80 into frictional engagement with the vertical friction surface 30 of the wear plate to v snub or dampen the vertical oscillation of the'bolster.
- a side frame comprising tension and compression members and column members interconnecting said tension and compression members and defining an opening therebetween, said column mern- E I bers presenting Vertical friction surfaces obliquely related l to the longitudinal axis of the side vframe, a-p1ur ⁇ ality of 'i l Patented Sept.l 3Q, T1958!l of bottom'plate 50 ⁇ v
- the front wall 68 pre- ⁇ side wallsv 72 and 74 are formed with wing-v, like wedges 82 having on the outer sides thereof wedge surfaces p84 which are engageable with wedge surfaces 64 ⁇ coil load springs seated on said tension member in said opening, a bolster -member having au end supported by the load springs, and friction means at the end of said bolster adjacent said surfaces to dampen the vertical oscillation of'the bolster member, said friction means comprising vertical rear and side walls and a horizontal wall at the end of said bolster interconnected to form a pocket therebetween adjacent each of said surfaces, the side
- a side frame comprising tension and compression members, columns interconnecting said members and defining an opening therebetween, the sides of the respective columns being adjacent said opening and presenting vertical friction surfaces obliquely related to the longitudinal axis of the frame, a plurality of load supporting springs seated on said tension member in said opening, a bolster extending transversely of the truck and having an end received in said opening and lsupported by said springs, friction means disposed in the end of said bolster adjacent each of said friction surfaces and each comprising a bottom wall perpendicular to said adjacent surface, an inner vertical wall parallel to and spaced from said adjacent surface, and vertical side walls perpendicular to said adjacent surface and interconnecting said bottom and rear walls to form a pocket therebetween, said pocket being open adjacent said adjacent surface, an inclined wall in said pocket presenting wedge surfaces thereon, a friction shoe positioned in said pocket and presenting friction and wedge surfaces thereon parallel to and engageable, respectively, with said first mentioned friction and wedge surfaces, and means in said pocket engaging said shoe
- a side frame comprising a column having a vertical friction surface thereon, the plane of said surface being at an angle with respect to the longitudinal axis of the frame, a bolster resiliently supported by the frame adjacent the column, friction means carried by the bolster and engageable with the surface, said friction means comprising horizontally spaced vertical side walls obliquely related to the longitudinal axis of the bolster and perpendicular to the surface, a horizontal bottom wall perpendicular to the surface, and a vertical end wall connecting said side and bottom walls to define a cavity therebetween, the open end of said cavity being immediately adjacent the surface, a sloping wall in said cavity extending between said side walls and having at least one wedge surface thereon, a friction shoe resiliently positioned in said cavity and having a vertical friction surface thereon and at least one wedge surface thereon, said last mentioned friction and wedge surfaces being parallel to and bearing against the first mentioned friction and wedge surfaces, respectively.
- a side frame comprising a pair yof vertical columns defining an opening therebetween, a bolster extending transversely of the truck and having an end resiliently supported in said opening, said bolster end presenting at opposite sides thereof substantially V-shaped vertical channels therein, vertical surfaces presented by the columns, said surfaces being disposed in the channels of said end and lying in vertical planes that converge outboardly of the longitudinal axis of the side frame at the longitudinal axis of the bolster, said bolster having pockets at each end thereof, wedge means in eachof Asaid pockets, the longitudinal axes of said pockets being normal to the respective vertical friction surfaces and converging inwardly at the longitudinal axis of the bolster, a friction shoe resiliently positioned in each of said pockets, each of said shoes comprising a boxlike member having a vertical friction surface engageable with the first mentioned friction surfaceand a wedge surface engageable with said wedge means.
- a side frame having a pair of spaced vertical friction surfaces lying in planes which converge outboardly of the longitudinal axis of the side frame, a bolster resiliently supported by said frame intermediate said surfaces, said bolster presenting on opposite sides thereof substantially vertical channels in which are disposed the respective surfaces of the side frame, a pair of friction devices on said bolster positioned at an angle with respect to each other, each of said friction devices being associated with, and positioned normal to, one of said surfaces, each of said devices comprising a pocket formed in said bolster and having a wedge surface therein, a friction shoe resiliently positioned in said pocket and having a wedge surface engaging the wedge surface of the pocket and a vertical friction surface engaging said associated friction surface.
- a supporting member a transverse member supported thereby, a pair of spaced vertical friction surfaces on one of said members disposed in substantially vertical recesses presented by the other member, the planes of said surfaces converging at the longitudinal axis of the transverse member, one of said members having a pair of pockets therein, said pockets having longitudinal axes angularly related to the longitudinal axis of the bolster member, each of said pockets being positioned adjacent one of said surfaces and having wedge means therein, a friction shoe resiliently supported in each of said pockets and comprising a wedge surface engageable with said wedge means, and a friction surface engageable with said adjacent friction surface.
- a side frame comprising a column member, a movable member resiliently supported by said frame adjacent said column member, and friction means between said members, each of said means comprising a vertical friction surface onone of said members and disposed Within a substantially vertically extending recess presented by the other member, said surfaces being obliquely related to the longitudinal axis of the movable member, a horizontal wall and spaced diagonally substantially coplanar wedge surfaces on the other of said members, a friction shoe engageable with said friction and wedge surfaces, and spring means positioned between said diagonal surfaces and abutting said shoe and said horizontal wall.
- a side frame comprising compression and tension elements, a pair of spaced column members interconnecting said elements and defining an opening therebetween, resilient means positioned on said tension member in said opening, a bol-ster member extending transversely of the truck and having an end supported by said resilient means in said opening adjacent said column members, each of said column members having a pair of sides converging to form a point in said opening, vertical friction surfaces on corresponding sides of the respective column members, the end of said bolster having pockets therein located adjacent and normal to said surfaces, wedge surfaces in said pockets, and resiliently supported friction shoes in ⁇ said pockets having friction and wedge surfaces engaging said first mentioned friction and wedge surfaces, respectively, to dampen the vertical oscillation of the bolster member and to resist the longitudinal and transverse movement of the bolster member with respect to the side frame.
- a box-like end portion having a pocket on each side thereof, the longitudinal axes of the pockets converging inwardly at the longitudinal axis of the bolster, spaced substantially coplanar diagonal friction surfaces in each pocket, and a spring seat in vertical alignment with the space between said surfaces.
- a side member a movable member resiliently supported thereby and extending transversely thereof, spaced vertical friction surfaces on one of said members disposed to extend in openings presented by the other member, said surfaces being disposed in planes intersecting at the longitudinal axis of the movable member, resilient friction devices in said other member abutting and engaging said vertical friction surfaces to snub vertical oscillation of the movable member relative to the side member and to resist the movement of the movable member relative to the longitudinal and transverse axes of the side member.
- a railway car truck according to claim 1l wherein the vertical friction surfaces are on the side member and the friction devices are in the movable member.
- a side frame having a pair of spaced column members defining an opening therebetween, a bolster member extending transversely of the truck and having an end resiliently supported in said opening adjacent saidl column members, each of said column members having a pair of sides converging to form a point in said opening, vertical friction surfaces on corresponding sides of the respective column members, said bolster end having pockets disposed adjacent the respective surfaces, wedge surfaces presented in the pockets, and resiliently supported friction shoes disposed in the pockets and frictionally engageable with the respective pocket wedge surfaces and column friction surfaces.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Description
Sept. 30, 1958 o. w. NEUMANN SNUBBED TRUCK 2 Sheets-Sheet 1 Filed Jan. 20, 1955 NVENTOR. @zi/0V W Q/Zeamyz/ Sept 30, 1958 O. w. NEUMANN 2,853,958
SNUBBED TRUCK Filed Jan. 20, 1955 2 Sheets-Sheet-2 United States Patent* SNUBBED TRUCK Otto W. Neumann, Chicago, Ill., assignor to American Steel Foundries, Chicago, Ill., a corporation of New Jersey Application `lanuary 20, 1955, Serial No. 482,955
13 Claims. (Cl. 10S-197) My invention relates to railway car trucks, and more particularly to a type of truck wherein snubbing means are mounted in each end of the bolster for cooperation with friction plates or panels on the adjacent side frame columns.
A general object of the invention is the provision of a snubbing arrangement wherein the device is operative to resist the lateral, as well as the vertical, motion of the bolster, relative to the side frames of a railway car truck.
A more specific object of the invention is the provision of a snubbed truck in which a pair, of spaced friction shoes are positioned in pockets at the ends of the bolster in angular relationship to each other and to the longitudinal axis of the bolster.
Another specific object of the invention is the provision of a railway car truck in which the side frame columns offer vertical friction vsurfaces disposed in converging planes.
These and other objects of the invention will become apparent from anexamination of the following description and drawings, wherein:
Figure l is a fragmentary side elevational view of a railway car truck embodying the invention,
Figure 2 is a partial sectional view taken in the transverse vertical plane indicated by the line 2-2 of Figure 1,
Figure 3 is a fragmentary top plan View, partially in section, of the structure illustrated in Figure 2 being taken in the horizontal plane indicated by the line 3-3 of Figure 2, and
Figure 4 is a vertical sectional view of the shoe pocket taken along the longitudinal axis of the bolster indicated by the line 4 4 of Figure 3.
Describing the invention in detail, it will noted that the truck comprises a side frame indicated generally at6, having compression and tension members 8 and 10, respectively, which are spaced from each other centrally of the frame and have their ends merged. Vertical columns 12 and 14 connect the tension and compression members, intermediate the ends of the frame, and are horizontally spaced from each other to define a bolster opening 16 therebetween. The tension member 10 is provided with upwardly extending flanges 18 which surround spring seat 20 in opening 16.
The inward edges of the vertical columns are V-shaped and .have corresponding inboard and outboard sides 22 and 24, respectively, which converge to form points 26 opposite each other in the opening 16. Sides 24 are disposed in inbo-ardly converging Vertical planes, and sides 22 are disposed in outboardly converging vertical planes.
The respective planes of each column intersect at the` longitudinal axis of the bolster which is indicated by line A-A and are angularly related to the longitudinal axis of the side frame which is indicated by line B-B. Columns 12 and 14 may be provided with V-shaped wear plates 27 welded thereto as .at 28 and which provide friction surfaces 30 parallel to and corresponding with the outer surfaces ofwalls 22 and 24 respectively. A
A plurality of coil load support springs indicated diay 2 grammatically at 34 may be positioned on the-spring seat 20 of the tension member in the opening 16 between the columns. Flanges 18 serve to retain the coil spring in position. The springs afford resilient support for a bolster indicated generally at 36 which extends transversely of the truck. The bolster comprises spaced top and bottom,
The box section 46 may be provided with a pluralityVVV of pockets 54 spaced from each other in'angular rela? 4 tionship to each other and to the longitudinal axis of the I bolster; each of the pockets may be normal to and adfjacent one of the surfaces 30 of the columns.`
The pockets are each defined by inboard and outboardr the walls are preferably. f offset inwardly at 57 and 59, respectively, to define ak narrow inner portion of the pocket. rlfhe portions 57and l side walls 56 and 58, respectively,
59 merge with the rear wall 60 which is formed integrally with the top and bottom walls 48 and 50. Also formed integrally with each of the walls 4S and '50` is an interrupted oblique wall 62 having spaced substantially coplanar wedge surfaces 64 which slope upwardly towardv I the surface 30 of adjacent plate 27. l
A friction shoe 66 may be positioned in each pocket.
Each shoe is of generallyA cup-like form having front and? 4 of pocket wall 62. The wedge surfaces 84 may be crowned from the top to bottom to permit a rocking movement of the shoe against the associated surfaces 64 to .v
accommodate irregularities in the wear plate. It will be noted that a handle-like portion 86 of the rear wall of the shoe extends upwardly between the spaced wedge surfaces of the pocket. A coil friction spring 90 is positioned in the pocket between a bottom wall'50 of the pocket and the spring seat 78 of shoe wal176. k
In operation, the spring 90 urges the spring shoe upwardly causing a wedge action between surfaces 64 of the pocket and the surfaces 84 of the shoe which forces the shoe friction surface 80 into frictional engagement with the vertical friction surface 30 of the wear plate to v snub or dampen the vertical oscillation of the'bolster.
It will also be apparent, that because the vertical friction surfaces of the column members are disposed in outwardly converging planes, the engagement between the friction shoes and the respective column members also operates to restrict lateral movement outwardly of the bolster.` A similar pair of friction shoes engaging column `members on the side frame on the opposite side of the truck restricts lateral movement of the bolster in the opposite direction. Additionally, the engagement between," the shoes and the column members restricts any movement of the bolster in a direction longitudinal of the truck.Vv
I claim:
1. In a railway car truck, a side frame comprising tension and compression members and column members interconnecting said tension and compression members and defining an opening therebetween, said column mern- E I bers presenting Vertical friction surfaces obliquely related l to the longitudinal axis of the side vframe, a-p1ur`ality of 'i l Patented Sept.l 3Q, T1958!l of bottom'plate 50 `v The front wall 68 pre-` side wallsv 72 and 74 are formed with wing-v, like wedges 82 having on the outer sides thereof wedge surfaces p84 which are engageable with wedge surfaces 64` coil load springs seated on said tension member in said opening, a bolster -member having au end supported by the load springs, and friction means at the end of said bolster adjacent said surfaces to dampen the vertical oscillation of'the bolster member, said friction means comprising vertical rear and side walls and a horizontal wall at the end of said bolster interconnected to form a pocket therebetween adjacent each of said surfaces, the side and horizontal Walls of each pocket being perpendicular to the adjacent surface, spaced wedge walls in said pockets formed integrally with said side walls and presenting wedge surfaces thereon, a friction shoe in each of said pockets, said shoe presentinga vertical friction surface parallel to said first mentioned friction surface and a wedge surface parallel to said tirst mentioned wedge surface, and a coil spring positioned in each of said pockets between the friction shoe and said horizontal Wall to urge said shoe into engagement with the first mentioned friction and wedge surfaces.
2. In a railway car truck, a side frame comprising tension and compression members, columns interconnecting said members and defining an opening therebetween, the sides of the respective columns being adjacent said opening and presenting vertical friction surfaces obliquely related to the longitudinal axis of the frame, a plurality of load supporting springs seated on said tension member in said opening, a bolster extending transversely of the truck and having an end received in said opening and lsupported by said springs, friction means disposed in the end of said bolster adjacent each of said friction surfaces and each comprising a bottom wall perpendicular to said adjacent surface, an inner vertical wall parallel to and spaced from said adjacent surface, and vertical side walls perpendicular to said adjacent surface and interconnecting said bottom and rear walls to form a pocket therebetween, said pocket being open adjacent said adjacent surface, an inclined wall in said pocket presenting wedge surfaces thereon, a friction shoe positioned in said pocket and presenting friction and wedge surfaces thereon parallel to and engageable, respectively, with said first mentioned friction and wedge surfaces, and means in said pocket engaging said shoe to urge its surfaces into engagement with said first mentioned friction and wedge surfaces.
3. In a railway car truck, a side frame comprising a column having a vertical friction surface thereon, the plane of said surface being at an angle with respect to the longitudinal axis of the frame, a bolster resiliently supported by the frame adjacent the column, friction means carried by the bolster and engageable with the surface, said friction means comprising horizontally spaced vertical side walls obliquely related to the longitudinal axis of the bolster and perpendicular to the surface, a horizontal bottom wall perpendicular to the surface, and a vertical end wall connecting said side and bottom walls to define a cavity therebetween, the open end of said cavity being immediately adjacent the surface, a sloping wall in said cavity extending between said side walls and having at least one wedge surface thereon, a friction shoe resiliently positioned in said cavity and having a vertical friction surface thereon and at least one wedge surface thereon, said last mentioned friction and wedge surfaces being parallel to and bearing against the first mentioned friction and wedge surfaces, respectively.
4. In a railway car truck, a side frame comprising a pair yof vertical columns defining an opening therebetween, a bolster extending transversely of the truck and having an end resiliently supported in said opening, said bolster end presenting at opposite sides thereof substantially V-shaped vertical channels therein, vertical surfaces presented by the columns, said surfaces being disposed in the channels of said end and lying in vertical planes that converge outboardly of the longitudinal axis of the side frame at the longitudinal axis of the bolster, said bolster having pockets at each end thereof, wedge means in eachof Asaid pockets, the longitudinal axes of said pockets being normal to the respective vertical friction surfaces and converging inwardly at the longitudinal axis of the bolster, a friction shoe resiliently positioned in each of said pockets, each of said shoes comprising a boxlike member having a vertical friction surface engageable with the first mentioned friction surfaceand a wedge surface engageable with said wedge means.
5. In a railway car truck, a side frame having a pair of spaced vertical friction surfaces lying in planes which converge outboardly of the longitudinal axis of the side frame, a bolster resiliently supported by said frame intermediate said surfaces, said bolster presenting on opposite sides thereof substantially vertical channels in which are disposed the respective surfaces of the side frame, a pair of friction devices on said bolster positioned at an angle with respect to each other, each of said friction devices being associated with, and positioned normal to, one of said surfaces, each of said devices comprising a pocket formed in said bolster and having a wedge surface therein, a friction shoe resiliently positioned in said pocket and having a wedge surface engaging the wedge surface of the pocket and a vertical friction surface engaging said associated friction surface.
6. In a railway car truck, a supporting member, a transverse member supported thereby, a pair of spaced vertical friction surfaces on one of said members disposed in substantially vertical recesses presented by the other member, the planes of said surfaces converging at the longitudinal axis of the transverse member, one of said members having a pair of pockets therein, said pockets having longitudinal axes angularly related to the longitudinal axis of the bolster member, each of said pockets being positioned adjacent one of said surfaces and having wedge means therein, a friction shoe resiliently supported in each of said pockets and comprising a wedge surface engageable with said wedge means, and a friction surface engageable with said adjacent friction surface.
' 7. A railway car truck according to claim 6, wherein the vertical planes defined by said first mentioned friction surfaces converge outboardly of the truck.
8. In a railway car truck, a side frame comprising a column member, a movable member resiliently supported by said frame adjacent said column member, and friction means between said members, each of said means comprising a vertical friction surface onone of said members and disposed Within a substantially vertically extending recess presented by the other member, said surfaces being obliquely related to the longitudinal axis of the movable member, a horizontal wall and spaced diagonally substantially coplanar wedge surfaces on the other of said members, a friction shoe engageable with said friction and wedge surfaces, and spring means positioned between said diagonal surfaces and abutting said shoe and said horizontal wall.
9. In a railway car truck, a side frame comprising compression and tension elements, a pair of spaced column members interconnecting said elements and defining an opening therebetween, resilient means positioned on said tension member in said opening, a bol-ster member extending transversely of the truck and having an end supported by said resilient means in said opening adjacent said column members, each of said column members having a pair of sides converging to form a point in said opening, vertical friction surfaces on corresponding sides of the respective column members, the end of said bolster having pockets therein located adjacent and normal to said surfaces, wedge surfaces in said pockets, and resiliently supported friction shoes in `said pockets having friction and wedge surfaces engaging said first mentioned friction and wedge surfaces, respectively, to dampen the vertical oscillation of the bolster member and to resist the longitudinal and transverse movement of the bolster member with respect to the side frame.
l0. In a bolster for a railway car truck, a box-like end portion having a pocket on each side thereof, the longitudinal axes of the pockets converging inwardly at the longitudinal axis of the bolster, spaced substantially coplanar diagonal friction surfaces in each pocket, and a spring seat in vertical alignment with the space between said surfaces.
11. In a railway car truck, a side member, a movable member resiliently supported thereby and extending transversely thereof, spaced vertical friction surfaces on one of said members disposed to extend in openings presented by the other member, said surfaces being disposed in planes intersecting at the longitudinal axis of the movable member, resilient friction devices in said other member abutting and engaging said vertical friction surfaces to snub vertical oscillation of the movable member relative to the side member and to resist the movement of the movable member relative to the longitudinal and transverse axes of the side member.
12. A railway car truck according to claim 1l, wherein the vertical friction surfaces are on the side member and the friction devices are in the movable member.
13. In a railway car truck, a side frame having a pair of spaced column members defining an opening therebetween, a bolster member extending transversely of the truck and having an end resiliently supported in said opening adjacent saidl column members, each of said column members having a pair of sides converging to form a point in said opening, vertical friction surfaces on corresponding sides of the respective column members, said bolster end having pockets disposed adjacent the respective surfaces, wedge surfaces presented in the pockets, and resiliently supported friction shoes disposed in the pockets and frictionally engageable with the respective pocket wedge surfaces and column friction surfaces.
References Cited in the file of this patent UNITED STATES PATENTS 2,352,595 Bachman July 4, 1944 2,394,872 Pierce Feb. 12, 1946 2,434,838 Cottrell Jan. 20, 1948 2,495,570 Cottrell Ian. 24, 1950 2,597,909 Tack May 27, 1952 2,669,944 Spenner Feb. 23, 1954
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US482955A US2853958A (en) | 1955-01-20 | 1955-01-20 | Snubbed truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US482955A US2853958A (en) | 1955-01-20 | 1955-01-20 | Snubbed truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2853958A true US2853958A (en) | 1958-09-30 |
Family
ID=23918070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US482955A Expired - Lifetime US2853958A (en) | 1955-01-20 | 1955-01-20 | Snubbed truck |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2853958A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3330224A (en) * | 1965-01-29 | 1967-07-11 | Amsted Ind Inc | Railway car truck |
| US3677363A (en) * | 1970-06-22 | 1972-07-18 | Henricot Usines Emile Sa | Damping and control device for a bogie bolster |
| FR2644743A1 (en) * | 1989-03-24 | 1990-09-28 | Sambre & Meuse Usines | BOGIE WITH DEFORMABLE CHASSIS |
| US5046431A (en) * | 1988-12-15 | 1991-09-10 | A. Stucki Company | Railway truck |
| US5417163A (en) * | 1991-05-15 | 1995-05-23 | Sambre Et Meuse (Societe Anonyme) | Railway bogie with frame having selective deformability |
| US20030041772A1 (en) * | 2001-08-01 | 2003-03-06 | National Steel Car Ltd. | Rail road freight car with damped suspension |
| US7004079B2 (en) | 2001-08-01 | 2006-02-28 | National Steel Car Limited | Rail road car and truck therefor |
| US7143700B2 (en) | 2003-07-08 | 2006-12-05 | National Steel Car Limited | Rail road car truck and fittings therefor |
| US7255048B2 (en) | 2001-08-01 | 2007-08-14 | Forbes James W | Rail road car truck with rocking sideframe |
| US7328659B2 (en) | 2001-08-01 | 2008-02-12 | National Steel Car Limited | Rail road freight car with resilient suspension |
| US7631603B2 (en) | 2004-12-03 | 2009-12-15 | National Steel Car Limited | Rail road car truck and bolster therefor |
| US7654204B2 (en) | 2002-08-01 | 2010-02-02 | National Steel Car Limited | Rail road car truck with bearing adapter and method |
| US7775163B2 (en) | 2004-12-23 | 2010-08-17 | National Steel Car Limited | Rail road car and bearing adapter fittings therefor |
| US7823513B2 (en) | 2003-07-08 | 2010-11-02 | National Steel Car Limited | Rail road car truck |
| US11414107B2 (en) | 2019-10-22 | 2022-08-16 | National Steel Car Limited | Railroad car truck damper wedge fittings |
| US11807282B2 (en) | 2020-11-09 | 2023-11-07 | National Steel Car Limited | Railroad car truck damper wedge fittings |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2352595A (en) * | 1941-11-17 | 1944-07-04 | American Steel Foundries | Car truck |
| US2394872A (en) * | 1944-07-19 | 1946-02-12 | Raymond C Pierce | Truck |
| US2434838A (en) * | 1944-04-21 | 1948-01-20 | American Steel Foundries | Car truck |
| US2495570A (en) * | 1945-01-12 | 1950-01-24 | American Steel Foundries | Truck arrangement |
| US2597909A (en) * | 1947-09-27 | 1952-05-27 | American Steel Foundries | Snubbed truck |
| US2669944A (en) * | 1950-12-06 | 1954-02-23 | Scullin Steel Co | Railway car truck construction |
-
1955
- 1955-01-20 US US482955A patent/US2853958A/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2352595A (en) * | 1941-11-17 | 1944-07-04 | American Steel Foundries | Car truck |
| US2434838A (en) * | 1944-04-21 | 1948-01-20 | American Steel Foundries | Car truck |
| US2394872A (en) * | 1944-07-19 | 1946-02-12 | Raymond C Pierce | Truck |
| US2495570A (en) * | 1945-01-12 | 1950-01-24 | American Steel Foundries | Truck arrangement |
| US2597909A (en) * | 1947-09-27 | 1952-05-27 | American Steel Foundries | Snubbed truck |
| US2669944A (en) * | 1950-12-06 | 1954-02-23 | Scullin Steel Co | Railway car truck construction |
Cited By (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3330224A (en) * | 1965-01-29 | 1967-07-11 | Amsted Ind Inc | Railway car truck |
| US3677363A (en) * | 1970-06-22 | 1972-07-18 | Henricot Usines Emile Sa | Damping and control device for a bogie bolster |
| US5046431A (en) * | 1988-12-15 | 1991-09-10 | A. Stucki Company | Railway truck |
| FR2644743A1 (en) * | 1989-03-24 | 1990-09-28 | Sambre & Meuse Usines | BOGIE WITH DEFORMABLE CHASSIS |
| WO1990011216A1 (en) * | 1989-03-24 | 1990-10-04 | Usines Et Acieries De Sambre Et Meuse | Deformable chassis-bogie and process and spare parts assembly for improving same |
| US5072673A (en) * | 1989-03-24 | 1991-12-17 | Usines Et Acieries De Sambre Et Meuse | Bogie with a deformable underframe including an oblique faced friction wedge and direct engagement between bolster and side-frame |
| US5417163A (en) * | 1991-05-15 | 1995-05-23 | Sambre Et Meuse (Societe Anonyme) | Railway bogie with frame having selective deformability |
| US20100095864A1 (en) * | 2001-08-01 | 2010-04-22 | National Steel Car Limited | Rail road freight car with damped suspension |
| US7603954B2 (en) | 2001-08-01 | 2009-10-20 | National Steel Car Limited | Rail road car and truck therefor |
| US7004079B2 (en) | 2001-08-01 | 2006-02-28 | National Steel Car Limited | Rail road car and truck therefor |
| US10745034B2 (en) | 2001-08-01 | 2020-08-18 | National Steel Car Limited | Rail road car and truck therefor |
| US7255048B2 (en) | 2001-08-01 | 2007-08-14 | Forbes James W | Rail road car truck with rocking sideframe |
| US7328659B2 (en) | 2001-08-01 | 2008-02-12 | National Steel Car Limited | Rail road freight car with resilient suspension |
| US20080035011A1 (en) * | 2001-08-01 | 2008-02-14 | National Steel Car Limited | Rail road car truck with rocking sideframe |
| US9789886B2 (en) | 2001-08-01 | 2017-10-17 | National Steel Car Limited | Rail road car and truck therefor |
| US7571684B2 (en) | 2001-08-01 | 2009-08-11 | National Steel Car Limited | Rail road freight car with damped suspension |
| US6895866B2 (en) | 2001-08-01 | 2005-05-24 | National Steel Car Limited | Rail road freight car with damped suspension |
| US7610862B2 (en) | 2001-08-01 | 2009-11-03 | National Steel Car Limited | Rail road car truck with rocking sideframe |
| US8011306B2 (en) | 2001-08-01 | 2011-09-06 | National Steel Car Limited | Rail road car and truck therefor |
| US8770113B2 (en) | 2001-08-01 | 2014-07-08 | National Steel Car Limited | Rail road freight car with damped suspension |
| US20100037797A1 (en) * | 2001-08-01 | 2010-02-18 | National Steel Car Limited | Rail road car and truck therefor |
| US7699008B2 (en) | 2001-08-01 | 2010-04-20 | National Steel Car Limited | Rail road freight car with damped suspension |
| US20030041772A1 (en) * | 2001-08-01 | 2003-03-06 | National Steel Car Ltd. | Rail road freight car with damped suspension |
| US20100139521A1 (en) * | 2001-08-01 | 2010-06-10 | National Steel Car Limited | Rail road car truck with rocking sideframe |
| US7654204B2 (en) | 2002-08-01 | 2010-02-02 | National Steel Car Limited | Rail road car truck with bearing adapter and method |
| US9254850B2 (en) | 2002-08-01 | 2016-02-09 | National Steel Car Limited | Rail road car truck with bearing adapter and method |
| US20110126392A1 (en) * | 2002-08-01 | 2011-06-02 | National Steel Car Limited | Rail road car truck with bearing adapter and method |
| US7845288B2 (en) | 2003-07-08 | 2010-12-07 | National Steel Car Limited | Rail road car truck and members thereof |
| US9278700B2 (en) | 2003-07-08 | 2016-03-08 | National Steel Car Limited | Fittings for railroad car truck |
| US20110073002A1 (en) * | 2003-07-08 | 2011-03-31 | National Steel Car Limited | Rail Road Car Truck and Members Thereof |
| US20110185939A1 (en) * | 2003-07-08 | 2011-08-04 | National Steel Car Limited | Rail road car truck |
| US7823513B2 (en) | 2003-07-08 | 2010-11-02 | National Steel Car Limited | Rail road car truck |
| US7143700B2 (en) | 2003-07-08 | 2006-12-05 | National Steel Car Limited | Rail road car truck and fittings therefor |
| US8272333B2 (en) | 2003-07-08 | 2012-09-25 | National Steel Car Limited | Rail road car truck and members thereof |
| US8413592B2 (en) | 2003-07-08 | 2013-04-09 | National Steel Car Limited | Rail road car truck |
| US8720347B2 (en) | 2003-07-08 | 2014-05-13 | National Steel Car Limited | Relieved bearing adapter for railroad freight car truck |
| US8726812B2 (en) | 2003-07-08 | 2014-05-20 | National Steel Car Limited | Rail road freight car truck with self-steering rocker |
| US8746151B2 (en) | 2003-07-08 | 2014-06-10 | National Steel Car Limited | Rail road car truck and fitting therefor |
| US10286932B2 (en) | 2003-07-08 | 2019-05-14 | National Steel Car Limited | Rail road car truck and members therefor |
| US7497169B2 (en) | 2003-07-08 | 2009-03-03 | National Steel Car Limited | Rail road car truck and fittings therefor |
| US7946229B2 (en) | 2003-07-08 | 2011-05-24 | National Steel Car Limited | Rail road car truck |
| US9475508B2 (en) | 2003-07-08 | 2016-10-25 | National Steel Car Limited | Rail road car truck and fitting therefor |
| US7631603B2 (en) | 2004-12-03 | 2009-12-15 | National Steel Car Limited | Rail road car truck and bolster therefor |
| US8113126B2 (en) | 2004-12-03 | 2012-02-14 | National Steel Car Limited | Rail road car truck and bolster therefor |
| US7775163B2 (en) | 2004-12-23 | 2010-08-17 | National Steel Car Limited | Rail road car and bearing adapter fittings therefor |
| US11414107B2 (en) | 2019-10-22 | 2022-08-16 | National Steel Car Limited | Railroad car truck damper wedge fittings |
| US11807282B2 (en) | 2020-11-09 | 2023-11-07 | National Steel Car Limited | Railroad car truck damper wedge fittings |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2853958A (en) | Snubbed truck | |
| US2378414A (en) | Car truck | |
| US2378415A (en) | Car truck | |
| US3714905A (en) | Dampened railway car truck | |
| US2551064A (en) | Snubbed bolster truck | |
| US2355450A (en) | Car truck | |
| US2365198A (en) | Truck | |
| US2528473A (en) | Snubbed truck | |
| USRE31008E (en) | Dampened railway car truck | |
| US2661702A (en) | Snubbed truck | |
| US2437359A (en) | Snubbed truck | |
| US2702512A (en) | Snubbed truck | |
| US2550910A (en) | Snubbed bolster truck | |
| US2444009A (en) | Ride control truck | |
| US2687295A (en) | Stabilizing means for railway car trucks | |
| US3358614A (en) | Snubbed railroad car truck | |
| US2283332A (en) | Four-wheel truck | |
| US3079873A (en) | Universal side frame for snubbed railway car trucks | |
| US2953995A (en) | Snubbed bolster truck | |
| US2672102A (en) | Control for railway truck bolster spring action | |
| US2548223A (en) | Snubbed bolster truck | |
| US2435385A (en) | Friction damped railway truck | |
| US2898870A (en) | Railway car truck conversion method | |
| US2346614A (en) | Railway truck | |
| US2652244A (en) | Spring package |