US1769709A - Car construction - Google Patents

Description

- July 1,1930. J. F. OQCOIIVNOR 9, 0

CAR CONSTRUCT ION Filed Dec. 26, 1929 Patented July 1, 1936 UNETEQSTATES @FFEQE JOHN F. OCONNOR, F CHICAGQ, ILLIHOIS, .ASSIGI'TOR TO W. H. MINER, INCL, 0F

. CHICAGO, ILLINOIS, A CORPORATTON OF DELA'WARE CAR CONSTRUCTION Application filed December 26, 1929. Serial No. 416,366.

This invention relates to improvements in car construction. One object of the invention is to provide a combined locking and center pin means for connecting the body and truck bolsters of railway cars, which is of rugged design having exceptional tensile strength and oliering maximum resistance against shearing action. A more specific object of the invention is to provide a means of the character described in the precedingparagraph ii'icluding a one piece, center pin member having a member at one end cooperating with a retaining shoulder adjacent the pin receiving opening of one of the bolsters and having shouldered engagement at the other end with a pair of locking blocks fixed to the other bolster, wherein the blocks are secured by holding means extending through the same and the corresponding bolster and so arranged as to be under multiple shear, thereby giving exceptional strength.

Gther objects of the invention will more clearly appear from the description and claims hereinafter following.

In the drawing, forming a part of this specification, Figure 1 is a vertical, sectional view through the cooperating body and truck bolsters of a railway car showing my improve- 0 ments in connection therewith, thec'enter pin proper being shown in elevation. Figure is a horizontal, sectional View corresponding substantially to theline 22 of Figure 1. And Figure 3 is a detailed perspective view of a locking block member employed in connection with my improved center pin means.

In said drawings, 10 designates the body bolster and 11 the cooperating truck bolster of a railway car. The body bolster is pro- 0 vided with the usual depending bearing projection 12 cooperating with hearing means at the top of the't-ruclr bolster.

In carrying out nay-invention, I provide the body bolster with a center pin receiving opening 13. and a pocket 14 above said opening.

As clearly shown in Figure 1, the pocket 1 1 is of greater diameter than the pin receiving opening 13, thereby providing an annular shoulder 15 atthe bottom of said pocket.

The truck bolster is'provided with a substantially rectangular opening 16 extending vertically therethrough and in alinement with the center pin receiving opening 13 of the body bolster. The opening 16 is enlarged at the top of the t Lick bolster, as indicated at 17, thereby providing a horizontal ledge 18. The side walls of'the lower portion of the opening .16 are provided with spaced, op posed,'vert1cally arranged ribs 19-19, as clearly shown in Figure 2. The ribs 19 are preferably two in number, at each side of the opening '16 and are spaced from the outer walls of the opening. The two ribs 19 are spaced apart a greater distance than the spacing between said ribs and the outer walls as clearly indicated in Figure 2. The ribs 19 terminate short of the upperend of the opening 16.

A bearing block 20 is supported on the truck bolster and cooperates with the bearing projection 12 ofthe body bolster, the block and bearing projection being provided with cooperating, substantially spherical bearing surfaces. The bearing block 20 is seated within a pocket 21 provided at the top of the truck bolster and has portion 22 of reduced size disposed within the enlarged part 17 of the opening 16, said reduced portion bearing on the ledge 18. The block 20 is also provided with a depending projection 23 which fits within the upper end portion of the opening 16 above the ribs 19. The bearing block is provided with a center pin receiving opening 24 which isin vertical 5 alinement with the opening 13 of the bolster 10 and corresponds in diameter thereto. An annular rib or flange 25 of usual form is provided on the bearing block and surrounds th i receiving opening thereof and is 90 seated within a pocket 26 of the bearing projection 12 of the body bolster.

My improved combined locking and center pin means comprises broadly a center pin member A and a pair of locking blocks B-B. The center pin member A is preferably of one piece, solid construction, having a shank portion extending through the center pin receiving o enings of the bolster 10 and the bearin b ock and projecting downwardly beyon the bearing block into the pocket provided therebelow by the recess or opening 16. At the upper end, the pin A is provided with a head member 27 cooperating with the annular shoulder 15, the head being accommodated within the pocket 14. Immediately adjacent the head, the shank of the member A is of substantially such a size as to closely fit the pin receiving opening 13. Below this gortion of the shank, the shank is reduced in iametar as indicated at 28 so as to provide slight clearance between the same and the bottom end portion of the pin receiving opening 13 0f the body bolster. Adjacent the bottom end, the shank of the pin is cut away as indicated at 29, thereby providing an an nular groove below the bearing block 20 and a head 30 at the bottom end of the pin of the same diameter as the shank portion 28 and of smaller diameter than the head 27.

The blocks 13-13 are of similar design, and are arranged side by side in the opening 16 of the truck bolster below the bearing block 20. The blocks B-B embrace the lower end of the pin A and each block is recessed on the inner side, as indicated at 31, to accommodate the bottom end portion of the pin. As most clearl shown in Figures 2 and the recesses 31 o the two blocks together define a substantially cylindrical o ening, the lower end portion of which is en arged, as indicated at 32, to accommodate the head 30 at the bottom end of the pin, the upper end of said opening being of such a size as to smlfiy fit the groove portion 29 of the shank of t e member A. As will be clear, the enlarged portions of the recess 31 of the blocks B provide retaining shoulders 33-33, which 000 erate with the head 30.

ach block B is vertically grooved at oppoeite ends, as indicated at 34-34, thereby providing a pair of spaced tongues 35-35 at each end t ereof, which embrace the corlfiponding ribs or tongues 19 of the pocket or opening 16 the tongues 19 bein acconrmodated within the grooves 34 an snugly fitting the same. The two blocks are secured tathe truck bolster by a pair of transversely disposed retaining pins 36-36 which extend through alined openings in the cooperating 19 and 35 of the truck bolster and locks B-B. As will be evident, by providing the inter-engaging tongue and grooved formation on the retaining blocks and the truck bolster comprising a plurality of tongues through which the retaining pins extend, an exceptionally efiicient holding means is provided in that the retaining pins are subject to multiple shear, in this particular case sextuple shear.

In assembling my improved combined locking and center pin means with the body and truck bolsters of a railway car, the pin member A is first applied to the body bolster by inserting the same downwardly through the opening of the same. The bearin block 20 is then placed in position on the ottom end of the pin A and the two locking blocks B-B engaged over the head 30 in embracing relation with the grooved portion of the shank and with the head of the pin. The pin with the blocks B-B mounted thereon, together with the bearing block 20 are then passed into the opening of the truck bolster, the blocks being entered into the pocket 16 so that the tongues 35-35 thereof engage between the tongues 19 on the interior of the ocket of the truck bolster, the bearing blocii being seated in the pocket 21 and the extension 23 thereof being seated in the upper end of the opening 16 of the bolster above the ribs or tongues 19. The securing pins 36 are then inserted through the alined openings of the tongues 35-35 and 19-19 and secured by cotter pins 37-37.

When it is desired to separate the body and truck bolsters, it is merely necessary to remove the two pins 36-36, whereupon the body bolster may be lifted with respect to the truck bolster, the in A, hearing block 20 and retaining blocks -B being lifted therewith clear of the truck bolster.

I have herein shown and described what I now consider the preferred manner of carrying out my invention, but the same is merely illustrative and I contemplate all changes and modifications that come within the scope of the claims appended hereto.

I clalm:

1. In car construction, the combination with body and truck bolsters; of a center pin extending through said bolsters, said pin having shouldered engagement with one of the bolsters to prevent removal of the pin in one direction; and means connecting the pin to the other bolster, preventing removal in an opposite direction, said means including a pair of blocks embracing the pin and havin shouldered engagement with the coirespon ing end of the same; and means extending transversely through the blocks and the corresponding bolster for securing the blocks thereto.

2. In car construction, the combination with body and truck bolsters, one of said bolsters having a pin receiving opening and a shoulder adjacent the outer end of said opening, and the other bolster having a pocket in alinement with the pin receiving opening; of a bearing block mounted on said last named bolster and cooperating with bearing means on the other bolster, said hearing block having a pin receiving opening; a pin extending through the openings of said bolster and bearing block and into said pocket, said pin having a head cooperating with said shoulder; a pair of retaining blocks within said pocket embracing the corresponding portion of the pin and having shouldered engagement therewith; and means extending through the bearing blocks and corresponding bolster for securing the bearing blocks thereto.

3. In car construction, the combination with body and truck bolsters, one of said bolsters having a center pin receiving opening and a shoulder adjacent the outer end of its opening, and the other bolster having a pocket in alinement with said opening; of a bearing block mounted on said last named bolster and having a projecting portion extending into said pocket and partly occupying the same, said block having a center pin opening in alinement with the first named opening; a center pin extending through said opening of said bolster and the opening of the bearing block and into the pocket beyond said block, said pin having a head member engaging said shoulder of said bolster; a pair of locking blocks embracing the end of the pin disposed within said pocket and having shouldered engagement therewith; and means extending transversely through said bearing blocks and the corresponding bolster for securing the same together.

4. In car construction, the combination with body and truck bolsters, one of said bolsters having a center pin receiving opening and a retaining shoulder adjacent the outer end of its opening, the other bolster having a pocket in alinement with said opening; of a center pin for connecting said bol sters, said pin having a head at one end c0- operating with vsaid retaining shoulder and having the other end projecting into said pocket; a pair of locking blocks within the pocket embracing the corresponding end of the pin and having shouldered engagement therewith, said blocks having tongue and groove connection with the corresponding bolster; and securing means extending transversely through said tongue and groove connection.

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