US2115037A

US2115037A - Car underframe structure

Info

Publication number: US2115037A
Application number: US83945A
Authority: US
Inventors: Edwin P Moses
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-06-06
Filing date: 1936-06-06
Publication date: 1938-04-26
Anticipated expiration: 1955-04-26

Description

April 26, 1938. E. P. MOSES CAR UNDERFRAME' Sr'JRUCTURy Filed June e, A1956 2 Sheets-Sheei'T l In Ver) for .5a/wif? @Moses gy Zr/y Api-n.26, 1938. v E, P, MOSES 2,115,037

CAR UNDERFRAME STRUCTURE Filed June 6,41936 2 Sheets-Sheet 2 Patented Apr. 26, 1938 UNITED STATES PATENT OFFICE CAE UNDERFRAME STRUCTURE Edwin. P. Moses, White Plains, N. Y. Application June s, 1936, serial'Nu. 83,945

1oc1aims. 01. 105;-415) The invention'relates to railway rolling stock and comprises features of vehicle underframe construction particularly adapted for use in hopper cars although not limited to such application. n

The` invention consists primarily in center sill, bolster, and associated structure whereby Various accessories usually made separately from the underframe and forming no partthereof are combined with the underframe structure. One object of the invention is to reinforce the center sill bolster and center plate structure as is necessary for heavy service requirements to 'f which hopper cars, for example, are subjected without unduly increasing the weight of the structure. n l

Another object of the invention is toV construct and locate equipment such as air reservoirs, brake cylinders, etc. so that space limitations may be accommodated and, preferably, so that this equipment may contribute to the framing. Structure embodying the present invention and other structure having the same general objectives is disclosed in the copending application of the present applicant, Serial No. 734,080, filed July 7, 1934, now Patent No. 2,085,762, of which the present application is in part a division and continuation. These and other detailed objects indicated below are obtained by the structure illustrated in the accompanying drawings, in which- Figure 1 is a top View of one longitudinal half of a hopper car underframe structure embodying the invention. l

Figure 2 is a side elevation of the same, a portion being sectioned to more clearly illustrate a detail of the structure. Y y K Figure 3 is a verticaltransverse view and section taken on the line. 3--3 of Figure 1.

Figure 4 is a longitudinal section taken on the line 4-4 of Figure 1.

Figure 5 is a detailed transverse section taken on the line 5-5 of Figure 4.

Preferably the underframe comprises a single unitary construction such as a one-piece casting, although this preferred form is not essential for most features of the invention. Such a casting is illustrated in the drawings and includes boxshaped center sill structure having a top wall I, side walls 2, and a bottom wall 3 with substantial openings 4 for lightening the structure and facilitating production of the casting. This sill structure extends from end to end of the car with its forward portion comprising draft sills 5 with suitable rib openings E' for receiving draft gear keys (not shown).

f Transverse vertical Webs I brace the center sill structure at intervals and preferably these Webs are apertured to receive piping 8, the marginal portions of the apertures includingv brackets 9 for mounting the piping either directly or through clamps such as indicated at Ill.

Bolster structure indicated generally at merges with the center sill structure and extends transversely thereof to the sides of the car. At the intersection of the bolster Vandcenter sill, lower wall 3 is depressed as at I2 to form center plate structure arranged for interengagement in the usual manner with the center plate of a supporting truck (not shown) lAn upstanding tubular member I3 extends upwardly from the central portion of VVthe center plate structure, rigidifying the latter and providing a mounting for the king pin (not shown) which connects the underframe and truckf. v

A vertical transverse web I4 at the rear of center plate I2 forms a part of the bolster structure and reinforces the sill structure at this point. An upright rib I5 extends between member I3 and webV I4 and into the depressed center sill forming portion of bottom wall 3. A draft gear stop block I6 extends upwardly at the front ofv the center plate structure with its sides spaced from the adjacent side walls 2 ofthe center sill.

Stop block I6 is connected Withrnember i3 by a central vertical rib I'l corresponding generally to rib I5 anddiagonal ribs I8 extend from block i6 rearwardly and downwardly into the depressed center plate forming portion of the bottom wall 3 bracing elements I2 and IB from each other.

The bolster structure at the sides of the center l sill structure is of general I-shaped cross-section having a vertical web I9, a top flange 20 substantially horizontal from end to end, and a bottom flange 2I which is inclined upwardly and outwardly from the center plate to the side of the car. An air reservoir 22 is located in one of the angles formed by the bolster and draft sill structure and utilizes the adjacent draft sill as an end wall and the adjacent portion of web I9 as an element of the side wall. The adjacent portion 23 of the inclined bottom flange 2| of the bolster merges with the outer end of the reservoir and the reservoir constitutes a substantial bracing structure across the angle betweenV the bolster and draft sill.

Preferably a horizontal bracket 24 projects from the forward portion of the air reservoir and mounts a diagonal brace 25 extending to the forward corner of the built-up platform structure (not shown) carried by the underframe. An upright web 26 intermediate the ends of reservoir 22 braces the walls of the latter and resists the thrusts transmitted to bracket 2,4.

A gusset 21 extends between the bolsterand draft sill at the side of the latter opposite to reservoir 22 anda brake cylinder 28 is carried by this gusset, and the cylinder and its support 29Y are shown as cast integral with the'remainder of the underframe. VGusvset 21 Vincludes a bracket 32 corresponding to bracket 24. Between cylinder 28 and reservoir 22.is a rectangular bracket 30 for mounting the air brake valve 3l, and bracket 30 also is preferably formed as part of the underframe casting.

The above described structure comprises an effective underframe for hopper cars and the relation of the underframe to the sloping end floors and hopper structure is indicated by the broken lines H in V'Figure 2.' The provision of complete'separately formed reservoir and brackets therefor on the underframe is avoided by the unitary structure.v The arrangement of thecenter plate isy simplified and the elements of the center plate and the reinforcement thereof also constitute elements of the center sill and draft stop structure.

As previously indicated, the casting of theelements in one piece is not essential to all features of the invention and other modifications of the has invention maybe made without departing from the spirit of the invention and the exclusive use of such modifications as come within the scope of the claims Vis contemplated. What is claimed is: V Y Y l. A railway vehicle underframe integralstruc- Vture including intersectingrcenter sill and bolster members, and a fluid reservoir between said bolster member and theend of the underframe, said. reservoir having walls mergingwith and forming a part of the upright websl of said bolster member and center sill members. t

2. Structure as specied in claim 1 which also includes a bracket projecting from the reservoir for mounting a platform framing member.

3. Structure as specified in claim 1 which also includes a bracket projecting from the reservoir intermediate the ends of the latter for mounting a platform framing member, there-being a Yreinforcing web extending across saidreservoir between said bracket and bolster structure;

4. In a railway car underframe; a centersill, a bolster having a verticalweb extending from said center silll to the side of the car, there Ybeing a lateral flange projecting from the lower portion of said web at one side thereof, van air reservoir located at the opposite side of said web Vand extending along the same towards the side of the Vcar but terminating short ofthe end of saidbolster, and the lateral flange on the opposite side of said web extending inwardly from the end of the bolster and merging with the end of said reservoir.

5. A railway vehicle underframe rigid onepiece structure comprising intersecting center sill and bolster members, a uid pressure brake cylinder and a fluid `reservoir in theV respective corners between said members and merging therewith, and an air brake valve mounting merging with said center sill betwee'n'said cylinder and reservoir. i

6. In a railway vehicle underframe, a bolste having an upright web, a draft sill extending from said bolster towards the adjacent end of the underframe, and a ilui-d reservoir located vbetweensaid bolster andsaid underframe end and having a portion of its wall structure formed by said bolster web.

'7. In a railway vehicle underframe, abolster having an upright web, a draft sill extending from' said bolster towards the adjacent end 'of the underframe, and a flui-d reservoir located between said bolster and said underframe end and having va portion of its wall' structure formed by said bolster web and draft sill.Y

8. In a railway vehicle underframe, a bolster, a draft sill extending from said bolster towards the adjacent end of the underframe, and a fluid reservoir located between said bolster and said underframe endV and having a portion of its wall structure formed by said bolster, said reservoir g being-constructed and arranged to mount a diag- Vonal corner brace at a point spaced from` said Vbolster and to transmit thrust from the same to said blster independently o f other framing members. Y

9. In a railway vehicle underframe, a bolster, a draft sill extending from said bolster towards itheadjacent end of the underframe, and al fluid reservoir located between s-aid bolster and said underframe end and having a portion` of its wall structure formed by said bolster, said reservoir being constructed and arranged to mount a diagonal corner brace at a point spaced from said draft sill and to transmit thrust from the same to said draft sill independently of other framing members.

10. In a railway vehicle underframe, a bolster,