US1666929A - frede - Google Patents

Description

April 24, 192.8.

C. F. FREDE CAR UNDERFRAME Filed Feb.21, 1927 2 Sheets-Sheet l April 24, 1928.

Patented Apr. 24, 1928.

retains UNITED STATES PATENT OFFICE.

CHARLES F. FREEZE, OF ST. LOUIS. MISSOURI, ASSIGNOR TO OOIVIINGNXVEALTH STEEL COMPANY, OF GRANITE CITY. ILLINOIS. A CORPORATION OF NEW JERSEY.

CAR UNDERFRAME.

Application filed February 21, 1927. Serial No. 189,926.

My invention relates to railway rolling stock and consists in an improved railway underframe construction.

rlhe object of my invention is to provide a railway under-frame consisting entirely, or in a large party` of a single member, and preferably of a cast-ing in which extensivo normally `flat surfaces are corrugated as more particularly described below. Such lll corrugation is for the purpose of strengthening or reinforcing relatively thin platelike members so as to facilitate the making of the latter, particularly it they are cast, and so as to reinforce and strengthen the sills and transverse members of the underframe.

In one form, my invention is adapted to form a portion of a tank such as a tender tank, and it is a further object of my inven- 9" tion to produce a tank underframe casting in which the plate-like portions of the underframe are corrugated and serve as a portion of the tank.

v In the accompanying drawings which i illustrate my invention,-

Figure l is a top view of one-half of one side and one end of a tender underframe and tank bottom embodying my invention.

Figure 2 is a vertical longitudinal section taken on line 2-2 of Figure 1.

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

Figures 4, 5 and 6 are corresponding views and sections illust-rating a different type of underframe adapted to be used :for ordinary freight cars or passenger cars or electric locomotives or other railway vehicles where the integral formation of the floor and the underframe sills, etc., may be advantageous.

The underframe illustrated in Figures 1, 2 and 3 is shown as consisting of a one-piece casting containing the usual center sills l, the ends of which form draft sills 2. The casting also includes side sills 3, end sills 4, and transverse sills or transom- like members 5 and 6, members 5 being indicated as bolsters through which the underframe is supported upon the truck. The side sill and end sills are provided with suitable pads to which the superstructure plates P may be welded or riveted.

Integral with the sills referred to above is a horizontal wall or plate 7 extending between the sills and imperforate throughout is length and width so as to form a liquidtight bottom 'for the vehicle. This wall 7 is shown as being provided with a plurality of corrugations which may be. disposed in any desired arrangen'lent as is best adapted for meeting the various stresses which may be imposed upon the casting in the manufacture thereof or in its use after the vehicle is completed. For example. the eorrugations S at the left hand of Figure l are shown as extending longitudinally of the underframe and parallel with the sills i and 3 and transversely of the end sill it and the bolster' 5. Corrugations 9 in the intermediate portion of the underframe are shown as extending at right angles to eorrugations S and parallel with transom members 5 and 6 but terinitiating short of center sill 'l and side sill The corrugations 10 in the middle portion of the underframe are shown as being arcuate or circular and are disposed about a common center C.

Suitable reinforcing ribs 1l. are provided to brace wal-l 7. and the ribs may loe arranged transversely of or parallel with the rorrugations as desired. The transom elements 5 and 6 are provided with suitable openings l2 which lighten the casting' and permit the free passage of liquid from one end of the casting to the other.

It will be understood that the underframe is adapted to carry floor beams` flooring and other superstructure on the sills and transoms in the same manner as any ordinary underframe `and in addition the full depth of the underframe is available for use as a storage con'ipartment for liquids.

The provision of the corrugations El, 9. and 10 in the bottom wall of the casting relieves shrinkage strains in the casting as it cools after pouring, and also assists in maintain ing a uniform thickness of the wall. This is due to the tendency of the corrugations to straighten ont when they are placed under tension whereby no part of the fluid metal in the wall is drawn away from another part.

In the moditication illustrated in Figures 4, 5 and (i the plate-like member 13 is l0- cated at the level of the top faces of the sills lll, I5 and I8 and holsters 17 and intermediate transoms 1S but, is formed integrally therewith and is corrugated substantially throughout its area similar to the wall 7 of Figures 1, 2 and 3. The wall 13 is suitably reinforced intermediate the sills and transoms by ribs 20. In this structure, I also illustrate the formation oli corrugations 19 intermediate the center sills 1l which may be desirable.

Composition tiooring can be applied di-` rectly to the undertrame without finishing the latter and without the" addition of other elements, and the composition flooring `will fill the depressions in the plate and produce a level upper surface.

Obviously other variations in my invention may be made, and I contemplate the exclusive use of the subject-matterV of my' invention as expressed in my claims irrespective ot modications in thearrangement of the corriigations or variations inl the other details of the undertrarne.

I claim:

1. In aniinderrame for a railway vehicle, longitudinal and transverse sills, and a corrugated horizontal wall extending between said sills and formed integrally therewith.

2'. In an underframe 'lor a railway vehicle, longitudinal and transverse sills provided with surfaces adapted to mount tank superstructure, and a corrugated horizontal wall between said sills adapted to form the bottom of a tank structure.

3. In an iindertrame for a railway tank vehicle, a corrugated horizontal plate torming the bottom ot the tank structure'.

fl. In a east iindertframe, center sills, bolsters, and a corrugated horizontal wall connecting the lower edges ol said sills and holsters and forming therewith the lower portion of a tank structure.

5. In a cast iinderjtrame for a railway tank vehicle, a longitudinal sil-l, and a plate torminga taink bottom with corrugations extending parallel with said sill.

6. In a cast iinderframe tor a railway tank vehicle, a transverse transom or like member, and a plate forminga tank bottom with cor rugations extending parallel with said transom.

7. In a cast underiirame for a railway tank vehicle, longitudinal sills, transverse transom-like members, and a plate forming a tank bottom between said sills and members and provided with arcuate corrugations.

8. ,In a east underframe for a railwaytank vehicle, longitudinal sills, transverse transom-like members, and a plate forming a tank bottom betweensaidsills and members and provided with a plurality of corruganeeaeee tions, the corrugations in different portions extending in different directions.

9. In a east undert'rame for a railway tank vehicle, a horizontal plate forming a tank wall and having a series of parallel corrugations, and' an upstanding reinforcing rib extending across said corrugations intermediate their ends.

10. Inv a cast un'dertrame for a railway tank vehicle, a horizontal plate forming a tank wall and having ar series oit parallel corrugations, and an iipstandingv rib entending parallel with said corrugations along one ol the latter.

11. In a cast undertrame for a railway tank vehicle, a horizontal plate forming` a tank wall and havinga series of concentric arcuate corrugations, and an upstanding re inforeing rib extending across said corrugations.

12. In a locomotive tender, a'tank having a corrugated'bottom forming a part of the tender undert'rame.

13. In ay locomotivetender, a. tank having` a bottom plate consi-sting `ot a corrugated casting forming part oit the tender under frame.

11i. In a cast u-ndertrame for a railway vehicle, longitudinal and transverse sills and transoms, a corrugated horizontal wall extending `between said sills and transoms, and a reinforcing rib extending across the corrugations of said wall intermediate said. sills and transoms.

15. In a cast iinderifrai'ne for a railway vehicle, spaced sills, a horizontal plate extending` between said sills and having,` a se ries of parallel oorrugations, and a reinforcparallel with said eorrugations.

16. In an underframe for a railway vehicle, spaced longitudinal sills, and a corrugated horizontal wall extending between said sills and formed integrally therewith.

17. In an iinderframe for a railway vehicle, center sills, and a. corrugated horizontal wall extending. between said sills and formed integrally therewith.

18. In an underframe for a railway vehicle, center sills, side siils, and a corrugated horizontal wall extendingr between adjacent side sills and center sills and formed integrally therewith.

In testimony whereof I hereunto. at'rix my signature this 12th day of Feb., 1927'.

CHARLES, `r. rnnnn..

ing rib extendingk between said sills andy

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