US2084859A

US2084859A - Railway car underframe

Info

Publication number: US2084859A
Application number: US741534A
Authority: US
Inventors: William H Meyer; Edwin C Jackson
Original assignee: General Steel Castings Corp
Current assignee: General Steel Castings Corp
Priority date: 1934-08-27
Filing date: 1934-08-27
Publication date: 1937-06-22
Anticipated expiration: 1954-06-22

Description

5 Sheets-Sheet 1 June 22, i937. w. H. MEYER ET A1.

RAILWAY CAR UNDERFRAME Filed Aug. 2v, 19:54

June 22, 1937. w. H. MEYER E1- AL RAILWAY CAR UNDERFRAME Filed Aug. 27, 1934 5 Sheets-Sheet 2 nn. M W /M M W. o #HJ wmf A ./.m .wm Wf W. H. MEYER El' AL RAILWAY CAR UNDERFRAME June 22, 1937.

Filed Aug. 27. 1954 5 Sheets-Sheet 3 June 22, 1937. w. H. MEYER Er AL RAILWAY CAR UNDERFRAME Filed Aug. 27, 1934 5 Sheets-Sheet 4 w m V m June 22, W H MEYER ET AL RAILWAY CAR UNDERFRAME Filed Aug. 27, 1934 5 Sheets-Sheet 5 ll lll/11111 A Fig -f'- Patented .lune 22, 1937 UNETED STATES FATENT QFFlCE Louis, Mo., assignors Corporation, Granite Delaware Application August 27,

Claims.

This invention relates to railway rolling stock and consists particularly in novel underfrarne structure for hopper cars.

An object of the invention is to provide novel 5 means for attaching the hopper walls to and supporting the same from the center sill.

Another object is to provide improved bolster structure adapted for supporting the adjacent hopper slope sheet.

Another Objectis to reinforce the center sill and particularly the portions between the bolster which support the hoppers and lading carried therein.

Another object is to strengthen and simplify the construction of hopper car underframes by forming various parts so as to accomplish the functions of members ordinarily formed separately and secured thereto.

These objects and other more detailed objects hereafter appearing are attained by the structures illustrated in the accompanying drawings in which Figure 1 is a top view showing a portion of the left longitudinal half of a hopper car, portions of the hopper walls or ooring being broken away.

Figure 2 is a top view showing the right longitudinal half of the underframe, the. hoppers being omitted.

Figure 3 is a vertical longitudinal section taken on the line 3 3 of Figure 1.

Figure 4 is a similar section taken on the line 4 4 of Figure 2.

Figure 5 is a vertical transverse section taken on the broken line 5 5 of Figure 1.

Figure 6 is a similar section taken on the line 6 6 of Figure 4.

Figures 7 and 8 are detailed sectional views taken on the inclined lines 1 1 and 8 8, respectively, of Figure. 4.

Figure 9 is a vertical transverse section taken on the line 9 9 of Figure 1.

Figure 10 is a vertical transverse section taken on the line Ill IlI of Figure 3.

Figure 11 is an end View of the center sill structure.

Figure 12 is a partial top View showing a modication.

Figure 13 is a- View corresponding to Figure 3 but showing the form in Figure l2.

Figure 14 is a vertical transverse section taken on the line Iii-I4 of Figure 13.

Figures 15, 16 and 17 are sections taken on the inclined line I5 I5, I6 !6 and H I'l, respectively, of Figure 13.

to General Steel Castings City, Ill., a corporation of 1934, Serial No. 741,534

Figure 18 is a View corresponding to Figure 12 but showing another modification.

Figure 19 is a sectional View corresponding to Figures 3 and 13 but showing the form in Figure 18.

Figure 20 is a vertical transverse section taken on the broken line 2li-2! of Figure 18.

Figures 2l and 22 are sectional views taken on the inclined lines 2 I Ei and 22-22 of Figure 19.

Figure 23 is a view corresponding to Figure 22 but showing another modification.

Figure 24 is a half vertical transverse section corresponding to Figure 20 but showing still another modiiication.

In Figures l to 11 is illustrated a hopper car underframe including the center sill I, draft sills Z having integral striking plates 2a and drawbar carry iron 2b, and the usual draft lugs and guide ribs 3, and intersecting transverse arms, generally indicated at 4, braced from the center sill by

gussets

5, 6 and 1, each gusset 'l having pads 8 for mounting the brake cylinder 9, shown in Figure 5. On the under-surface of each arm 4 at the. middle is the center bearing element I0 and at the ends are the side bearing mountings Ii.

The car illustrated is provided with four hoppers A, two on each side of the center sill, and each having an outer end wall I2, an inner end wall I3 having a hopper opening I4, and an inner side wall I5, the outer side portions of the hoppers being omitted. Projecting laterally from the side walls of the center sill near the arms 4 are the inclined flanges or ledges I6 braced by ribs I'I. Each flange I6 extends the entire depth of the center sill, over the top thereof and beneath the same, and is perforated for riveting, as at I 8, to the supported hopper end wall I2. Between the flanges I6 are the inclined flanges I9 likewise extending the full depth of the center sill and at their bottoms connected with the lower extremities of the flanges I5 by means of the vertical longitudinal flanges 2S depending beneath the lower outer corners of the sill and perforated for riveting to the inner side walls I 5 of the hoppers, as at 2I.

As shown in Figures 4 and 8, a portion of each inclined flange I9 is attached to the lower extremity of the supported wall I3 and the remainder thereof supports the angular element 22 which forms a part of the periphery of the hopper opening and is adapted for receiving the hopper cover 23.

Between the hoppers, the center sill side walls are extended upwardly to form approximately inverted V-shaped brackets 24. These brackets along their upper edges have perforated anges 25 forming continuations of the inclined flanges I9 extending along the center sill side walls. The anges 25 on the center sill extensions 24 cooperate with flanges i9 to support the inner sloping end walls i3 of the hoppers. rIhe extensions 24 are connected at their lower ends and at their tops by the transverse webs 26 and are perforated, as at 21, to facilitate casting and lighten the structure. These brackets also function as substantial reinforcements for the center sill between the hoppers, the fianges l5, i9 and 2l! reinforcing the portions of the center sill inside the hoppers.

The integral bolster arms 4 extend only to the side bearing mountings Il and each includes a vertical transverse web 28, perforated at 29 and 39, and extending upwardly substantially beyond the top wall of the center sill. The web 28 has an integral reinforcing flange 3| at the bottom and an inclined flange 32 at the top for mounting the slope sheet 33 forming an extension of the adjacent hopper end wall l2. The web 28 extends from end to end of arm 4 and is further reinforced by Vertical ribs 35. Secured to the top and bottom flanges 32 and 3l on each arm 4 are the laterally extending

angles

31, 38, 39 and 4!) connected at their Vends by structural members 4l and mounting the panel webs 42, having flanges 42a secured to the outer ribs 36, and forming lateral extensions of the web 28.

Top angles

31 and 38 form extensions of the inclined top web 32 of the cast part of the bolster and the bottom angles 39 and 4i) form continuations of the bottom web 3l thereof. As shown in Figures 3 and 5, the side bearings l la are mounted beneath the plate 43a on the bottom of the bolster. The

structural members

31, 3B, 39,V 45 and 4l and the Webs 42 serve to extend the bolsters laterally to the side sills 43 and side plates 43a of the car.

In Figures 12 to 17, inclusive, the inner side walls 44 of the hoppers are formed as integral downward extensions of the side walls of the center sill 45, as most clearly shown in Figures 14 and 15. Extending along the side walls of the center sill are the inclined flanges 45 braced by ribs 41 and continued downwardly along the hopper walls 44 to approximately the lower extremities thereof, these flanges serving for mounting and supporting the hopper outer endV walls 48. Spaced inwardly of the flanges 46 are short flanges or ledges 49 supporting'the lower extremity of the hopper inner end'wall 59. Eachrledge 49 extends approximately halfway down the side of the center sill and, extending along the remainder of the sill wall as a continuation thereof and along the edge of the hopper wall 44, is an angular element 5l forming the inside part of the periphery of the hopper opening and adapted for receiving the hopper door 52.

As shown in Figure 13, the upper edge of the hopper opening is reinforced by an angle 53 secured to the lower edge of the hopper inner wall 55 and the lower edge of the opening is reinforced by an angle 54 secured to the lower edge of hopper wall 48. upward extensionson the center sill between the hoppers are omitted, the inner walls 59 of the adjacentV hoppers being secured together attheir upper extremities and to the vertical transverse bracing and supporting web 55, as at 53. The flanges or

ledges

46 and 49 extend continuously over the top of the center sill and the top wall In this form the substantial of the sill is inclined upwardly adjacent these flanges, as at 51 and 58, for reinforcingthe same. By means of this structure, the ribs 41 are omitted at the top of the center sill and the flanges are adequately braced without excessive concentration of the metal, and the casting operation is facilitated.

In Figures 18` to 22, the hopper inside walls 59 are formed separately from the centerl sill and at the top are bent inwardly, as at Si), and have ribs or lugs 6l resting on the lateral flanges 62 projecting from the lower edges of the center sill. The flanges 52 constitute continuations of the inclined flanges or ledges 63 extending upwardly along the side walls of the center sill and over the top thereof for attachment and supporting of the hopper wall '64. Attached to the lower portion of the inclined flange 65 supporting the lower edge of the hopper inner end wall 66 is the angular element 61 forming a portion ofthe periphery of the hopper opening. The

Viianges

62, 53, and E5 are substantially continuousalong the sides and lower edges of the center sill.

Figure 23 shows an inclined flange 63 corresponding to the iiange 55 in Figure 22 and projecting laterally from the side wall of the center sill 39. Mounted onV the inclined flange 68 is the approximately arcuate element 1!) forming a portion of the periphery of the hopper opening.

In Figure 24, the hopper inside wall 1| is Vsecured directly to the outwardly and downwardly inclined flange 12 projecting from the lower edge of the center sill.

In each ofthe forms, the constructionof the underframe Vand attachment 0f the separately formed hoppers to the sill and bolsters aresubstantially simplified and also strengthened due to the formation of various parts integrally and the novel disposition of the various attaching and bracing flanges and ribs. The hopper car is also more durable than similar cars utilizing built-up underframes due to the absence of riveted and bolted seams which are corroded by certain types of lading material, such as coal, and Vbecome weakened after use for a limited period. v

Theinvention is not hrnited to the exact details of the structures illustrated but may be modified in various respects as will occur to those skilled in the art and the exclusive use of all such modifications as come within the scope of the claims is contemplated.

We claim: 4

l.' Hopper car underframe integral structure including a box-like center sill member, oppositely inclined ledges extending along a side wall thereof and below the bottom wall thereof for attachment to hopper end walls, and a flange connecting the lower extremities of said ledges vand extending downwardly from the bottom ofk said sill member for supporting the hopper side wall.

2. A hopper car integral underframe structure` comprising a center sill member for transmitting longitudinal forces applied to the underframe and a flange extending over the top thereof for attachment of a hopper wall, the top wall of said sill member being inclined upwardly to meet the upper portion of said flange and merging therewith so as to brace the same.

3. A hopper car box section center sill member having restricted portions of its side walls comprising inverted V-shaped open truss structure running lengthwise of the sill member and extending substantially above the remainder of the member and forming support structure for converging hopper walls.

4. Structure as specified in claim 3 in which the upwardly projecting portions of said side Walls are provided with flanges at their upper edges for attachment of hopper walls, said flanges being continued downwardly along the center sill member.

5. Structure as specified in claim 2 in which said ange extends over said center sill member at an angle to the vertical and the inclined portion of said center sill Wall merges with the downwardly facing side of said ange.

WILLIAM H. MEYER. EDWIN C. JACKSON.