US1377701A - Truck-side-frame arrangement - Google Patents

Description

I. A. LAMONT.

TRUCK SIDE FRAME ARRANGEMENT.

APPLICATION FILED SEPT- 20' I920- Patented May 10, 1921.

,IIIIIIII I I14! llllllI JOHN A. LAMONT, OF CHICAGO, ILLINOIS, ASSIGNOR T AMERICAN STEEL FOUNDRIES, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

TRUCK-SIDE-FRAME ARRANGEMENT.

Specification of Letters Patent.

Application filed'September 20, 1920. Serial No. 411,604.

- oago, in the countyof Cook and State of Illinois, have invented certain new and useful Improvements in Truck-Side-Frame Arrangements, of which the following is a specification. I

This invention relates to a railway truck side frame arrangement.

One object of the lnvention is to provide a flexible side frame in which the articulated parts cooperate efiiciently and are connected 7 in a simple, reliable and efficient manner.

Another object is to provide a side frame having portions which cooperate in a simple and novel manner with associated journal boxes and bolster.

Another object is to provide an articulated truck side frame adapted to meet the various requirements under service conditions.

These and other objects are accomplished by means of the arrangement disclosed on the accompanying sheet of drawings, in

which- Figure 1 is a side elevation of my truck side frame;

Fig. 2 is a top plan view-of the same; Figs. 3, 4, 5, 6 and 7 are sectional views taken, respectively, in the planes of lines 3.-3, 4-4, 55, 66 and 7--7 of Fig. 1;

Fig. 8 is a side elevation of the pivotal connecting member between the side frame members; and

Fig. 9 is a top plan view of the same. The various novel features of my invention will be apparent from the following description and drawings and Will be particularly pointed out in the appended claims.

This articulated truck side frame includes what I choose to call a rigid side frame member 12 shown in detail in Figs. 8 and 9.

This connecting member 12 has a downwardly extending pivot portion 13 which is pivotally mounted in a downwardly extending dowel member 14 formed integrally with the rigid frame member 10, said connecting member being pivoted to the side frame member 10 on a vertical axis to provide a relative lateral swinging movement between the side frame members 10 and 11. The inner end of the flexible side frame member 11 terminates in the rounded pivotal portion 141 formed between the side walls of said frame memberf The lower wall .of said side frame member adjacent the rounded portion 14 is provided with an opening 15 registering with a groove 16 formed inthe rounded end portion 14. The opening 15 receives a vertically extending projection 17 formed on the connecting member 12, said projection 17 being continuous with a curved central rib 18 which occupies the groove 16 and cooperates with the curved portion 14 for permitting avertical relative movement of the side frame members 10 and 11 about a horizontal axis, which is very advantageous in operating over switch-backs having vertical curves ranging from 2 degrees to 7 degrees. The side walls 19 of the rounded end ortion 14 of the side frame member 11 rlde in the grooves 20 in the connecting member 12,

said grooves being on opposite sides of the centralrib 18, thereby guiding the relative vertical movements of the side frame members 10 and 11. The fixed side frame member 10 is provided with a supporting and guiding portion 21 for the connecting member 12, the circular ribs 22 of which slidably engage the guiding and supporting portion 21. By means of this connecting member and its cooperative connection with the rigid side frame member 10 and flexible side frame member 11, relative vertical and horizontal movements are permitted between said side frame members to readily make curves in the tracks in a plurality of directions, such, for instance, as those ordinarily encountered in rounding a curve and those encountered in change of inclination of the track, especially where an inclination is quite abrupt, such, for example, in the use of vertical curved tracks on switch-backs.

Normally the side frame members 10 and 11 are locked against separation by a bolt 23 Patented Mayra rear.

extending between the side walls of the fixed side frame member 10 and directly over and in engagement with an ear portion 24: on the inner end of the flexible side frame member 11. The locking bolt 23 finds use particularly in holding the side frame members together in the event that the cars are turned over.

Mention has been made heretofore about one of the dowel members 14 on the rigid frame member 10. This same frame member is provided with an associateddownwardly extending integrally formed dowel member 25, said two dowel members 14.- and 25 in assembled position passing into pockets in journal boxes (not shown) for forming a connection therebetween to prevent lateral displacement of one with respect to the other. This rigid frame member also has similar downwardly extending dowel members 26 and 27 for one end journal box, and the flexible side frame member 11 also is provided with similar dowel members 28 and 29 to cooperate with an end journal box, said journal box not being shown. The side frame members intermediate the dowel pins are provided with upwardly extending recesses 30, 31 and 32 which act as clearance spaces for the reception of ribs on the associated journal boxes in the event that the side frames are caused to yieldably approach journal boxes when the springs are compressed.

These side frame members are provided with bolster openings 33 and 34, which receive arms 35 and 36 of a bolster. Preferably each of the bolster arms is seated in a bolster pivot member 37 having a vertically depending projection 38 pivoted in a vertical opening 39 in the side frame to permit a given amount of pivotal action of said bolster pivot members 37,.and accordingly a certain amount of relativemotion between the truck side frame members and the bolster, particularly a relative transverse movement occasioned in rounding a curve.

There may be various modifications of the invention and it is my intention to cover all such modifications which do not involve a departure from the spirit and scope of the following claims.

I claim:

1. A railway truck side frame having a plurality of telescopically-arranged articulated parts connected to permit relative vertical and horizontal movements.

2. A railway truck side frame having a plurality-of telescopically-arranged articu lated parts connected to permit relative movements in a plurality of directions.

3. A railway truck side frame having a plurality of frame members and a connecting member between said frame members whereby the latter may have relative movements in a plurality of directions,

4. A railway truck side frame having a plurality of frame members and a connecting member between said frame members whereby the latter may have relative vertical and horizontal movements.

5. A railway truck side frame having a plurality of telescopically-arranged articulated parts connected to permit relative vertical and horizontal movements, and means normally locking said parts against separation.

6. A railway truck side frame having a plurality of articulated parts, and means additional to the articulation normally locking said parts against separation.

7. A railway truck side frame having a plurality of frame members movably connected with respect to each other, said members each having a plurality of projections to be received by openings in associated journal boxes to limit relative lateral movement between such journal boxes and side frame members.

8. A railway truck side frame having a plurality of side frame members movably connected with respect to each other, dowel members carried by one of said members to cooperate with a plurality of journal boxes, and dowel members carried by another of said side frame members for cooperating with another journal box.

9. A railway truck side frame having a plurality of side frame members movably connected with respect to each other, dowel members carried by one of said members to co'iiperate with a plurality of journal boxes, and dowel members carried by another of said side frame members for cooperating with another journal box, said side frame membershaving recesses intermediate said dowel members for the reception of portions on associated journal boxes.

10. A railway truck side frame having a plurality of frame members connected to each other for relative movement and having bolster openings and bolster receiving members pivotally mounted in said side frames within said bolster openings.

11. A truck side frame having a bolster opening and a bolster receiving member pivotally mounted in said side frame memher at said bolster opening.

12. A truck side frame and a bolster receiving member pivotally connected in said side frame.

13. A truck side frame and a bolster receiving member pivotally mounted with respect to said side frame.

Signed at Chicago, Illinois, this 10th day of September, 1920.

JOHN A. LAMONT.

Images