US1970977A - Railway pedestal and journal box structure - Google Patents

Description

Aug. 21, 1934. H, M. PFLAGER RAILWAY PEDESTAL AND JOURNAL BOX STRUCTURE s Sheets-She et 1 Filed Oct. 3. 1932 Mvenfok ZZ y/WPK/ yer Aug. 21, 1934. H. M. PFLAGER 1,970,977

RAILWAY PEDESTAL AND JOURNAL BOX STRUCTURE I Filed Oct. 3. '1932 s Sheets-sheaf. 2

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Patented Aug. 21, 1934 PATENT OFFICE RAILWAY PEDESTAL AND JOURNAL BOX STRUCTURE Harry M. Pflager, St. Louis, Mo; assignor to Gen eral Steel Castings Corporation, Granite City, 111., a corporation of Delaware Application October 3, 1932, Serial No. 635,931

9 Claims. (01.105-225) This invention relates to railway rolling stock and consists in novel journal box and pedestal structures.

Certain types of journal boxes, and particularly roller bearing boxes used in locomotives and trucks, are wider than the height of the box with the result that forces transmitted through the journal box tend to rotate or twist the box. causing it to bind in the pedestal. Boxes v at present in use haveflat side walls which en? gage the opposing inner surfaces of the pedestal jaws and these walls cannot be extended vertically as space must be provided between the same and the top of the pedestal opening to permit relative movement of the box and pedestal jaws. The main object of the present invention is to eliminate the referred to rotating or twisting tendency of wide journal boxes by providing additional bearing elements on the box which extend above the usual bearing surfaces, and additional guides on the pedestal jaws which extend above the top of the pedestal opening.

- This object and others hereafter appearing are attained by the structures illustrated in the accompanying drawings in which Figure 1 is a partial half top view of a driving box and locomotive pedestal assembly illustrating the invention, the right half being in horizontal section viewed substantially from the line 1-1 of Figure 2. v

Figure 2 is a side view of the same.

Figure 3 is a vertical transverse section taken on the line 3-3 of Figure 2. I

Figure 4 is a similar section taken on the corresponding section line of Figure 1.

Figures 5 and dare top. and side views, re- I spectively, of the improved journal box.

Figure 7 is a fragmentary top view of a truck and journal box assembly illustrating the invention.

Figure 8 is a side'view of the same. Figure 9 is a vertical transverse section taken on the line 9-9 of Figure 8.

. Figure 10 is a horizontal section taken on the broken line 10-10 of Figure 8.

In Figures 1 to 6, the invention is illustrated as applied to a driving 'box mounted in a loco-- motive underframe or'bed including box-shaped backbone member .1, wheel pieces 2 spaced lat- 5 erally therefrom, and a pedestal opening including top cross member 3 and pedestal jaws 4.

The jaws 4 are secured together at the bottom' bymeans of a pedestal binder 5 bolted to the wheel piece. The backbone member and wheel pieces are braced by transverse webs 1a."

The box includes an enlarged substantially cylindrical body portion 6 for receiving the journal 7 of the driver 8, roller bearings 9, and the races 9a and 9b. At the top of the box is a rectangular depression 10 forming a seat for mounttween the box and the pedestal under spring action.

In order to extend the bearing surface on the box which engages the pedestal jaws, without limiting the movement of the box in the pedestal opening, pairs of bearing flanges 15 are pro vided at each side of the box adjacent walls 12, which flanges extend outwardly from the front and rear walls of the box and substantially above the upper extremities of walls 12. The portions of flanges 15 above the body of the box are braced by ribs 6a. Therenewable liners 13 have por tions 15a ,which extend over and engage the flanges 15. Ribs 16 and shoulders 17 project from the outer and inner surfaces, respectively. of the wheel piece adjacent the pedestal jaws and extend above the top of the pedestal opening. Liners 14 on the pedestals are extended over these additional bearing surfaces and receive the box flanges 15 and portions 15a of liners 13.

. In Figures 7 to 10, inclusive, the invention is illustrated as applied to a truck including frame wheel pieces 18, transoms 19, and end sills 29. The wheel pieces are provided with pedestal openings each including a top member 20 and jaws 21 secured together at the bottom by a binder 30. The box has a seat 31 at the top for equalizer 22 and vertical walls 23 at the sides for engaging the inner walls of the pedestal jaws.

'The wheel piece is provided with vertical guide ; ribs 24 and 25 on the outer and inner surfaces, re-

spectively, and the box has flanged upwardly extended bearing guides 26 at each side of the surfaces 23, the flanges cooperating with guide ribs 24 and 25. Renewable wear plates 27 and liners 28 are provided on the box and pedestal jaws, respectively, the former overlapping flanges 26 and the latter extending over ribs 24 and 25.

In each form the vertical bearing surfaces between the journal box and pedestal are subi throughout their length.

stantially increased in length without increasing the size of the pedestal opening, or in any way weakening the pedestal or afiecting the facility of movement of the box in the pedestal opening. It will be apparent that the auxiliary box guides on the underframe may be extended to the upper surface of the wheel piece and that the auxiliary box bearings may be extended upwardly a suflicient distance to counteract any tendency of the box to twist in the pedestal.

Obviously, the invention is not limited to the exact details of the structures described but may be modified in various ways as will appear to those skilled in the art, and exclusive use of all such modifications as come within the scope of the appended claims is contemplated.

What is claimed is:

1. In a railway vehicle under-frame, a wheel piece including pedestal jaws, there being shoulders on said wheel piece adjacent said pedestal jaws and extending above the pedestal opening, said shoulders constituting journal box guides 2. In a railway vehicle underframe, a wheel piece including pedestal jaws, there being vertical surfaces projecting from each side of said wheel piece adjacent said jaws and extending above the pedestal opening, said surfaces constituting journal box guides throughout their length.

3. In a railway vehicle underframe, a wheel piece including pedestal jaws,'there being shoulders on the inside of said wheel piece and ribs on the outside of said wheel piece, said shoulders and ribsbeing adjacent the pedestal jaws and having vertical surfaces extending above the pedestal opening and constituting journal box guides.

4. A railway vehicle journal box having a top wall and side walls each including elements for engaging pedestal jaws, said elements projecting upwardly beyond said top wall for extending the pedestal-engaging-portion of the box, there being a pedestal top bar receiving recess between the elements projecting from each of said side walls.

5. A railway vehicle journal box having side walls for engaging pedestal jaws, said walls' extending substantially to the topof the box, and spaced ribs at each side of said walls and projecting above the same and providing additional bearing surface for engaging pedestal jaws at points substantially above the tops of said walls.

6. In combination in a railway vehicle, a wheel piece having a pedestal opening and additional vertical guides at each side of the pedestal jaws and extending above the pedestal opening, and a journal box having side walls engaging said jaws and ribs at each side of said walls and extending above the top of the box, said ribs engaging said guides to provide additionaLengagin g surface between said box and said wheel piece.

7. In combination, a railway vehicle pedestal, and a journal box having side walls engaging the jaws thereof, said walls extending substantially to the top of said box, there being additional vertical guides on the inner and outer surfaces of the pedestal jaws and extending above the pedestal width, and additional bearing elements at the sides of the pedestal jaws and of said box and pro? jecting above the bottom of the cross piece of said pedestal and the top of said box, respectively, said elements increasing the effective height of the box relative to said pedestal.

' 9. A railway vehicle journal box having side walls for engaging pedestal jaws and having other surfaces at the sides of said walls and extending substantially above the same for providing additional bearing surface between the box and pedestal jaws.

H. M. PFLAGER.

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