US1742006A - Locking center-pin construction for railway cars - Google Patents

Description

1929- J. F. O'CONNOR 1,742,006

LOCKING CENTER PIN CONSTRUCTION FOR RAILWAY CARS Filed April 9, 1928 Mac MM Patented Dec. 31, 1929 UNITED STATES PATENT OFFICE JOHN F. OOONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR TO V. H. MINER, INC., 0]?

CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE LOCKING OENTER-PIN CONSTRUCTION FOR RAILWAY CARS Application filed April 9, 1928. Serial No. 268,564.

This invention relates to improvements in locking center pin construction for railway cars.

' The mainobjectof the invention is to provide means for connecting the body bolster ,of railway car to the co-operating truck member a, in such a manner that accidental separation of the same is prevented, wherein the connecting means includes a center pin provided with a detachable sectional locking head member and means embracing the same which holds the parts of the head against separation and thereby prevents accidental removalofthe head from the pin. Other and further objects of the invention .will more clearly appear from the description andclaims hereinafter following.

Inthe drawing, forming a part of this specification, Figure 1 is a top plan view of the central section of the body bolster member of a railway car, illustrating my improvements in connect on therewith. Figure 2 is alongitudmal, vertical sectional view of the body bolster and co-operating truck bolster member, corresponding substantially to the line 22 of Figure 1. And Figure 3 is a horizontal sectional View, corresponding substantially to the line 33 of Figure 2, but

tatedto an angle of ninety degrees with respect to theposition shown in Figure 2.

In said drawings, 10 designates the body bolster of a railway car underframe structure' and 1 1 the co-operatingtruck bolster member, the member 11 being the transom or arch member of the truck bolster construction. The body bolster l0 isprovided with v a downwardly projecting bearing section 12,

4 l which co-operates with a'bearing block 13 supported on the truck bolster member ll.

Q The block 13'is disposed within the usual pocket 14 provided at the top of the member The bearing members 12 and 13 are provided with co-operating spherical bearing 1 surfaces, and the member 13 has an upstandj ing central projecting portion 15 which engages within a recess at the center of the bearing member 12.

In carrying out myinvention, I provide the bolster members 10 and 11 with aligned showing the parts of the sectional head rocenter pin receiving openings 16 and 17. The body bolster member 10 is provided with a pocket 18 at the top thereof, the pocket being aligned with the pin receiving opening 16 and being laterally elongated to provide pocket sections on opposite sides of the pin receiving opening 16. As clearly shown in- Figures 1 and 3, the pocket is of greater length than width, the width of the same being slightly greater than the width of the o a'ening 16, and the side walls, which are indicated by 1919, form abutment means. or limiting shoulders for a purpose hereinafter described. a

The truck bolster member 11 is provided with a circular p clretQO at thelower side thereof, which is in alignment with the opening 17 and is adapted to accommodate the head ofthe center pin.

My improved center pin locking arrangement proper comprises a center pin member A and a detachable sectional locking head B. i

The center pin A extends through the openings 16 and 1'? of the body andtruck bolster members and, as shown, has the main body portion thereof of cylindrical form, and of smaller diameter than said openings. At the bottom end, the pin A is provided with a fixed head 21, which is accommodated in the pocket 20. Adjacent the head 21, the pin is provided with. an enlarged cylindrical portion 22 which substantially fits the opening 17. At the upper end, the pin A is provided with a head 23. which is of slightly smaller diameter than the pin receiving opening 16. Inwardly of th'ehead 23, the pin A is provided with a cylindrical enlarged section 24 which substantially fits the opening 16. The spaced head 23 and enlargement 24 provide an annular groove 25 therebetween. As clearly shown in Figure 2. the head 23 is disposed entirely within the pocket 18 and spaced above the bottom wall thereof.

The sectional head B comprises two blocks 2626, which are of semi-circular form and are adapted to embrace the head 23 andthe grooved portion 25 of the pin A. As shown, the blocks 26 are recessed on their inner sides, 100 as indicated at 27, to fit the head 23. Each block is also provided with an inwardly extending semi-circular flange 28 at the bottom. thereof, adapted to engage within the groove 25 of the pin. Each block 26 is also provided with an upstanding ear 29, the ears 29 and the two blocks being so disposed thatthey are diametrically opposite when the parts are assembled. The body bolster is also provided with a pair of ears 30 which are disposed at diametrically opposite sides of the pocket 18.

The ears 29 and 30 receive a retaining cotter pin 31 to prevent rotation of the sections of the head B when the parts are finally assembled.

The elongated pocket 18 is of such a size that the two blocks may be readily inserted at opposite ends and then moved laterally toward each other to embrace the head 23 of the pin and engage the flanges 28 of the blocks with the groove 25, as shown in Figure When thus engaged, the blocks are bodily rotated about the pin through an angle of ninety degrees, so as to dispose the division line of the blocks substantially parallel to the side walls of the pocket 18, as shown in Figure 1. When the head B has been rotated tothis position, the blocks 26 are held against lateral separation by engagement with the side walls 19 of the pocket, the clearance between the head 23 and the side walls 19 of the pocket being such as to snugly accommodate the blocks 26. In order to prevent accidental rotation and displacement of the parts of the head B, the cotter pin 31 is inserted through the aligned openings of the ears 29 and 30,

. so as to lock the parts together.

While I have herein shown and described what I consider the preferred manner of carrying out my invention. the same is merely illustrative and I contemplate all changes and modifications which come within the S00 e of the claims appended hereto.

claim:

1. In a swiveled connection of a body bolster and a truck bolster member of a railway car, the combination with a center pin extending through the body bolster and truck bolster member, said pin having a fixed head at one end; of a detachable head member, in eluding separable sections secured to the,

other end thereof; and fixed abutment means on one of said bolsters directly engaging and embracing said sections to prevent lateral separation and removal thereof.

2. In a center pin locking arrangement for railway ears, the combination with a body bolster member and a truck bolster member, said members having aligned center pin receiving openings, one of saidmembers having a pocket communicating with the pin receiving opening thereof, said pocket being laterally extended beyond the opposite side walls of said opening; of a pin extending through I said openings and having a head at one end having shouldered engagement with one of said members; a sectional head secured to the other end of the pin and having shouldered engagement with the other member, the sections of said head being engaged with the pin by entering the same within the laterally extended portions of said pocket, said sections when engaged with the pin being rotatable to dispose the same in looking relation with said walls of the pocket, thereby preventing lateral separation of said sections.

3. In a railway car construction, the combination with a body bolster member; of a truck bolster member on which the body bolster member is swiveled; a pin extending through said members, said pin having a head at one end, of larger size than the pin receiving opening, the other end of the pin having a head of a diameter not greater than the pin receiving opening; a detachable sectional head member each' section of which partly embraces said last-named head of the pin; and fixed abutment means at opposite sides of the pin receiving opening between which the sections of the head are laterally insertible and removable, said sections being rotatable about said head of the pin to posi tion the pin embracing portions thereof between the pin and said abutment means to prevent separation of said sections. I

4. In a center pin locking arrangement for railway cars, the combination with a body bolster member and a truck bolster member on which the first-named member is swiveled; ofa pin extending through said members, said pin having a head at the lower end, cooperating with abutment means on the truck bolster'member, the said pin having an annular groove adjacent the upper end thereof; a detachable sectional head member embrac-' ing the upper end of'the pin and co-operating with abutment means on the body bolster member, the sections of said head closely embracing the pin and having inturned flanges seated in said groove; and upstanding abut ment faceson the body bolster at opposite sides of the pin receiving opening thereof, embracing the sectional head member to preventseparation of the sections thereof.

5 In a center pin locking arrangement for comprising a pair of complementary block members embracing the pin, said block members having inturned flange sections engaged Within the groove of the pin, said blocks being embraced by the side walls of said pocket and held against lateral separation thereby, said blocks being accommodated in the laterally enlarged sections of the pocket when being assembled with the pin, and'being laterally displaceable toward each other in said pocket to permit engagement of the flanges thereof with the groove of the pin and being rotatable bodily in said pocket to dispose said sections on opposite sides of the pin between the pin and the side walls of the pocket to prevent lateral separation of said blocks.

.6. In a railway car construction, the combination with a body bolster; of a car truck bolster member on which the body bolster is swiveled, said body bolster and truck bolster member being provided with aligned center pin receiving openings, the body bolster being provided with a pocket aligned with the center pin receiving opening thereof, said pocket being of greater length than width; at center pin extending through the openings of the body bolster and truck bolster members, said pin being headed at the bottom end and having shouldered engagement with the truck bolster member, said pin being cut away adjacent the opposite end to provide a head member of not greater diameter than the pin receiving openings of the bolster members; a detachable retaining element accommodated in the pocket of the body bolster,

said retaining element comprising a pair of blocks embracing and fitting the head at the upper end of the pin, said blocks having flange sections extending into the cut away portion of the pin and engaging in back of said head, the side walls of the pocket embracing the blocks forming the sectional head to prevent lateral separation of the blocks when said blocks are disposed on opposite sides of the pin between the same and the side walls of the pocket; and detachable means for holding said sectional head against rotation with respect to the body bolster.

In witness that I claim the foregoing I have hereunto subscribed my name this 6th day of April, 1928.

JOHN F. OCONNOR.

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