US1620498A - Side frame and journal box therefor - Google Patents

Description

' T. H. SYMINGTON SIDE FRAME AND JOURNAL BOX THEREFOR March 8 9 Filed July 12. 1923 INVNTOB.

Patented Mar. 8, 19?.7.

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Application filed. July 12,

jtion is to provide a journal box and wrought metal side frame both ofwhich are made separately and subsequently oined by riveting,

welding or the like, said side frame being formed from a blank of sheet metal, the ends of wh ch are out and shaped to prov1deour-- nal box bearing portions adapted to receive ourna-l boxes which are preferably cast with attaching flanges adapted to contact the side walls of the side frame adjacent the bearing portions therein.

Another object of the invention is to. provide an economical construction of journal box and wrought metal side frame in which the blank of sheet metal forming the side frame can be cut of a relatively reduced size and at the same time shaped at its ends to provide strong and reliable journal box recesses, a considerable saving in the raw material used in the blank being effected as the result of my present invention.

A further object of the invention is to provide a side frame'from a sheet or blank of metal folded to provide an inner wall and an outer wall arranged in spacedrelation,

each of said walls being-preferably provided with a plurality of truck column portions, a'plurality of top arch bar portions, and a plurality of bottom arch bar portions, said blank or sheet being of a size which will form astrong and reliable frame when folded and united, butof an overall length which will not exceed the overall distances of the journal boxes. I

A further object of the invention is toprovide a journal box having portions shaped to conform to and arranged for engagement with portions of a car truckside frame, the particular shape and construction of said journal box permitting the use of a sufiicient amount of metal in the side frame at the critical points therein and also providing for the economical cutting of the blank'f'rom which the side, frame is made.

The invention further consists in the method of manufacturing a car truck side frame by forming the same from a continuous sheet metal blank having corresponding side frame portions which are symmetrically 1923. Serial no. 651,978.

passing between them, bending portions of said blankto form flanges, cutting opposite ends of the blank to form journal boX recesses whichengage only the inner and top portions of the journal boxes, bending portions adjacent said recesses to form flanges, and finally uniting the side walls of the blank whereby open ended journal box rece 'ses are formed at each end of theside frame for engagement with the respective inner and top portions of the journalboxes urged within the recesses. I

ihere are other features ofthe invention pel'taining to the particular combination of parts and details of construction all as will hereinafter appear.

In the drawings illustratingthe invention, the scope whereof is pointed out in the claims:

Figure 1 is a view in side elevation of a portion of a car truck side frame constructed in accordance with my invention an'dhaving Figure l isa detail vertical longitudinal section through a portion of the end of the side frame illustrating theopen ended journal box recess.

Referring to the drawings in which corre-. sponding reference characters designate similar parts in the several views, my improved construction involves a side frame provided with an outer wall 1' and an inner wall 2 formed from a continuous sheet orblank of j straight line which is parallelto an axis of symmetry passing between symmetrical side frame'portions, said portions being pro-- video. with inwardly extending stiffening flanges all of-which are preferably'bent'from one-side of the blank.

The top of the side frame is preferably slightly crowned, as shown, the lower edges I'BCGSS.

of the top arch bar portions of the side frame being provided with inwardly extending flanges 3, the said lower edges being downwardly inclined from the truck column portions to produce in effect a cambered compression member. The bottom arch bar portion is formed with an upper flange 4 which merges into the flange 3 on the top arch bar portion.

The bottom arch bar portions are provided with inwardly extending flanges 5,

aid flanges being cut from the blank so as to terminate short of the flanges forming the vertically disposed and longitudinally arranged abutment walls of the journal box The interruption in the otherwise continuous flanges 5 is of much benefit in the manufacture of the side frame in that the metal at this point is not weakened by bending and stretching the metal around the corner atthe juncture of the bottom arch bar portion and journal box recess. It will be noted that the interruption occurs in each flange at an advantageous point where the cross sectional area of the metal is of the greatest vertical strength. The flanges 5 may be overlapped or abuttcd and united by welding or riveting.

The side frame is provided at each end thereof with a journal box recess 6, said recess being formed by cutting the metal blank to provide a vertical portion forming an abutment for the inner side of the adjacent journal box and an upper portion adapted to provide a continuation of the vertical portion of the recess, said upper portion being arranged to contact the top of the journal box and terminate in the open end of the recess 6, as clearly shown in Figure 4. In

wardly extending flanges are provided on each side wall adjacent the journal box re- .cess'es, the vertical portions of said flanges being indicatedby the numeral 7 and the horizontal portions of said flanges being designated by the numeral 8. The flanges are preferably united by'a curved portion 9, the respective portions 7, 8 and 9 of the flanges being shaped to conform to the con tour of the journal box fitted within the recess. The flanges are shown in my present embodiment as slightly spaced apart, although it will be understood that the said flanges may be abutted and united by welding or other means. The outern'iost ends of the flanges 8 are slightly curved. as at 10, to engage the upper-portion of the journal box A plurality of rivet openings 11 is provided.

journal box and at their upper ends by the top of the journal box, a dust guard well and front opening being provided, as usual. Other portions of the box, such as the lid for example, are omitted. The top of the journal box is formed with upstanding ribs preferably longitudinally and transversely disposed, the top edges of said ribs contacting the lower faces of the adjacent flanges 8. Projecting from the top of the journal box at the front and rear thereof, are vertically disposed flanges 13 and 14-, designed, respectively, to lie against the outer wall 1 and inner wall 2 of the side frame. The flanges 18 and 1 1 are continued across the top of the journal box and downwardly adjacent the inner wall thereof, said flanges terminating at or about the lower edge of the bottom arch bar portions of the side frame. The flanges are preferably designed to conform to the curvature of the journal box recess and providea firm uniting means extending from the lower edge of the side frame to the extreme ends thereof. A plurality of reinforcing ribs 15 unites the flanges 13 with the top portion of the journal box, and a plurality of reinforcing ribs 16 unites the flanges 14 with the top of the journal box and an adjacent wall of the dust guard well. These reinforcing ribs serve to strengthen the respective attaching flanges in resisting the lateral strains incident to service conditions.

The means attaching the journal box to the side frame comprises a plurality of rivets 17, said rivets passing through suitable openings in the respective flanges 13 and 14, which openings register with the openings 11 in the respective side walls of the side frame. The rivets are preferably arranged between thereinforcing ribs and extend from the lower edge of the bottom arch bar portion to the extreme ends of the side frame. I

The journal boxes are formed in rights and lefts for attachment to the respective. ends of the side frame, the relatively large and continuous flanges, together with the rivets attaching the same, providing a very rigid and strong construction for use in con nection with wrought metal side frames.

The method of manufacturing the side frame used inconnection with my improved journal box consists in shaping a continuous sheet metal blank having corresponding side frame portions which are syl'i'imetrically disposed with respect to the axis of symmetry of the blank passing between them, bending portions of said blank to form flanges, cutting opposite ends of the blank to form journal box recesses which are designed to engage only the inner and top portions of the journal boxes, bending portions of the blank adjacent said. recesses to form flanges, fold ing the blank on a line at the top, which line throughout its length is parallel to the axis 'lOl) hoses ,rl c a ;1 f'IIl combination, a car; truck ,side frame having inner and outer sidewalls arranged in spaced relation, ,eachpfsaid walls being provided with ,portions forming open ended svl'cjcessesateach end of, the s de frame-and journal :IlbOXBS fitted Within the openended ltecesses and having iper-"t ons cennected t said inner and outerSide-walls. a

;II,1 -.combination,a car truck side frame having inner and outer side walls arranged 'inspaced,relatiomjeach of said wallsb-eing provided with; portions i forming ,open ended 'i'ecessesat leach end-of the side 'frame, and

,journal boxes iittedwithin saidrecesses and having portions; arranged ad acent ithereto,

said portions *beingconnected at aplurality oiflpoints-to the inner fandji'outer side walls ,o-f the sideHLEra-me. a ji In combination, acar-truck sidef 'ame h aving inner and outer side walls arranged .in spaced relation, each 0i Sitlfilisidc walls having {at each ,endfthe'reof :an open ended recess, journal boxes fitted within said recesses, and rivet means connecting said j ournal boxes to each of said side walls.

4:. The combination with a car truck side frame having a'vertical web and openended journal box recesses at each end thereof, journal boxes fitted within said recesses, means connecting said ournal boxes directly to said web of the side frame, said means in cluding a plurality of rivets located above the journal boxes adjacent said recessed portions of the side frame.

5. The combination with a car truck side frame having inner and outer side walls, ar-' ranged in spaced relation, said side walls being formed with transversely disposed flanges bent to form an open ended recess at each end of the side frame, journal boxes having portions extending into said recesses and other portions thereof disposed longitudinally beyond the ends of the side frame, and means connecting said journal box to the inner and outer side walls of the side frame.

6. In combination, a car truck side frame having inner and outer side walls arranged in spaced relation, said side walls being formed with transversely disposed flanges bent to form an open ended recess at each end of the side frame, journal boxeseach being adapted to have its inner side and top portions contact adjacent portions of said open ended recess, means provided on each of said journal boxes adjacent said recesses and adapted to contact the said inner portions {tending into said recesses, pro ections ,pro ,r n e'dadjacent said-recesses and-contacting theside walls of ,theside frantic, and-means connecting .said ;,projections-,to the said side ,walls. i

In combination, a car pha ing inner and outer side avails arranged ,in spaced relation, said side walls being .formech-wi h transversely disposed flanges bent to form an open ended recess at each end offtheside ;frame,journal,boxes h'aving .portions extending into said recesses, each said.-, ournal;;boxesbeing formed with a ,flange adapted to ,contact the adjacent side wall gofthe side frame, and means for convnacting;saidflange to the side walls.

,9 ;I n,combinatioma car truck side frame hav ngunner-and outer sidewalls arranged in spaced relation, said sidewalls being a med w th t an v s ly .Cl pQs nge end of the side frame, journal boxes having portions extending into said recesses, each of said journal boxes being formed with flanges adapted to contact respectively the side walls of the side frame, said flanges conforming substantially to the contour of the recesses, and means for connecting said flanges to the side walls at a plurality of points.

10. In combination, a car truck side frame having open ended journal box recesses at each end thereof, journal boxes having portions extending into said recesses and other portions projecting beyond the ends of said side frame, and means for connecting the journal boxes and side frame together, said means including flanges provided on each journal box, said flanges being arranged to ext-end longitudinally and vertically adja cent that portion of the side frame in which the open ended journal box recess is formed.

11. A car truck side frame involving a continuous sheet metal blank shaped to form spaced inner and outer side walls, each of said side walls having inwardly projecting flanges at each end of the side frame, said flanges being shaped to provide open ended recesses adapted to receive journal boxes longitudinally of the side frame and designed to contact the inner sides and top portions only of said journal boxes.

12. A car truck side frame involving a continuous sheet metal blank shaped to form spaced inner and outer side walls, each of said side walls being formed with recesses lded on ,said journal boxes :ar-

truck side frame cbs i enman m ls fie rec a e JED ill)

open at their outer ends to receive journal boxes, and inwardly extending flanges provided on said side walls, said flanges being adapted to provide at each end of the side frame a single upright abutment for contacting the inner side of the journal box and an adjacent horizontally disposed top portion for contacting the upper part of the journal box, said last named top portion terminating in the open end of the recess.

13. A car truck side frame including spaced inner and outer side walls, each of said walls being formed with recesses adapted to receive journal boxes, each of said recesses having but one vertically disposed end wall forming a single abutment adapted to contact the inner side of the adjacent journal box and prevent longitudinal movement in one direction;

14. The method of manufacturing car truck side frames which consists in forming the same from a continuous sheet metal 7 blank having corresponding side frame portions which are symmetrically disposed with relation to the axis of symmetry passing between them, cutting the ends of the blank to form journal box recesses which are open ended longitudinally of the side frame, folding the blank along a line at the top of the frame, and finally uniting the folded blank.

15. The method of manufacturing car truck side frames which consists in forming the same from a continuous sheet metal blank having corresponding side frame portions which are symmetrically disposed with relation to an axis of symmetry passing between them, cutting the ends of the blank to form open ended journal box recesses, bending portions of the blank'adjacent said out ends to provide transversely disposed bearing portions adapted to contact the inner sides and top portionsonly of the journal boxes, folding the blank on a line atthe top, which line throughout its length is parallel to said axis of symmetry, and finally uniting the folded blank.

16. The method of manufacturing car truck side frame which consists in forming the same from a continuous sheet metal blank having corresponding side frame portions which are symmetrically disposed with relation to the axis of symmetry passing between them, cutting the ends of the blank to form journal box recesses which are open ended longitudinally of the side frame, folding the blank along lines at the top of the frame parallel with the axis of symmetry, and finally uniting the folded blank.

In testimony whereof I afiix my signature.

THOMAS H. SYMINGTON.

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