US2488853A - Rocking journal connection - Google Patents

Description

- Nov. 22, 1949 R. B. COTTRELL ROCKING JOURNAL commcnou Flled June 30 1944 I INVENTOR. I

I ofier "ifg. @9655 7 .31

Patented Nov. 2 2, 1949 ROCKING.- J'OURNAL CONNECTION Robert B} Gottrell, Ghicago, 11L, assignor to Ai'mcr ican Steel Foundries, GhicagoJlLt a corporation Application June so, 1944,,Seria1'No. 542;971

12 Claims; 1.

My invention relatesto railway car trucks and more particularly toa novel journal box mounting for a-freight'car truck.

The general object of my invention isto design a novel truck wherein the journal boxes" of the wheel and axle assemblies are capabl'e'of'limi'ted' relative vertical andhorizontal angling withrespect to the truck side frames which are"inter= connected by an intervening bolster in' the-conventional manner.

My invention is illustrated as applied to a-ro1ler bearing journal box to which the invention is especially adapted; however, it will be under-- stood that my novel principle maybe applied to other'types of boxes if desired.

It will be understood by those skilled in the art that in a freight car trucksuch as'above described, the wheel and axle assemblies fre-- quentl assume various angularities-w-ith respect to the side frames as the truck passes over curved or uneven sections of track; and it-'is the-*pri-- mary object of my invention to accommodate such angularities to a limited-extent;

A specific object of myinvention isto-provide' 2o posite-side's thereof.

, ture. Itmay lee-noted thatth'e'--franretapers in width *toward its extremity; as-seenoint Figure 2," and forthis reason; the? frame is? offset at Hi" (Figure -1'-)'"sothat the inner "jaw'8 is 'offsub'= stantially the same dimensions as the" outerj aw which, as best seen in the'end' Vi'GW' ofFi'gure 3; tapers downwardly for" a" purpose hereinafter parti'cnl'arly'describiedf The box it is formed on the *topthereoft with two spaced arcuate "bearing surfaces i8, i8 curv 15 in-gtransverseiy of the side frame and affording convexseats having abutment at" 213: with" wear padsor bearing plates 22; 22 secured" in any"co'nveni-ent manner; as' by'welding; to the" side frame within the pedestal opening. atop The" journal box ifl isals'o provided adjacent its inboard and' outboard ex tremities with upstandinglugs 2'4; T l-presenting arcuate faces" 26; 26 adjacent the *side'fra m'e" for. cooperation therewitnto limitextremevertical a novel combination of abutment surfaces onangling ofthe'-Whee1-and"aX1eaSseIIIblY' as the side frame pedestal jaws and the-journalbox: flanges which embrace such' jaws; whereby ex treme vertical and horizontal angling of" the journalbox relative'to the side frame-is limited by engagement of certain ofsaid flanges adjacent surfaces of the pedestal jaws: It will' be understood that such extreme vertical and horizontal angling is the result oPunlisualtrack: conditions and" is frequently of" such force as would result-in damageto the-various truckparts: M invention preventssuclr damage'by' a novel combination of abutment surfaces on the box and side frame pedestal jaws, as ab'ovedescribedi In the drawings, Figure 1 is a fragmentary side elevation of one end of a railway' car truck embodying my invention, the wheel andaxle' as sembly and associated journal box being'shownin section along the vertical longitudinal plane indicated by the line ll-of"'Figure 2.

Figure 2 is a fragmentary-top plan-View of'the' structure shown in Figure 1, and Figure 3'is' a fragmentary end view taken fromthe right as seen in Figures 1 and 2; I

Describing my invention in detail, the side. frame comprises tensionand compression. mem: bers 2 and 4 defining a window fragmentarily indicated at 6 and merging at their endsitoiformi an end portion with depending pedestallegstor: jaws 8, 8 defining an pedestal openin'g'therebee' hereinafter described,' said faces' being horizontally arcua-te to accommod-ate =horizontal angling of saidassembly;

The wheel and axle assembly; which" is frag 30: mentarily' indicated at 283 comprises a journal end received within the journal' box l'wfor'rota tion therewithin, said box being providedwitlr" anyconventional roller bearing" assembly" (not shown) the cavity 39* to afibrd" an" anti":

friction-a1 bearing for the" wheel and" axle assembly, as will be clearly apparent to those skilled in ,theart: The outboard end of the. journal" box is. closed? by a suitable cover plate 132T secured thereto at 34', 34 (Figure 1) as by. bolts (notshown) andian oil plug 36 isscrewedinto said cover, plataand wired theretowasi at38, said plug, being; readily removable, for the pu posesof; lubricating the -bearings within tl-ie journal box Referring mon tor Figure 3-, it will;v bei-understood'. that-under service: conditions wherein normal: vertical angling: occnmi betweem the: wheel and axleassemblyrwrandithe side. frame; the journal: box: Iiiand-side-=frame=are afforded relative=1ioch= in'g movement alt-"28? 20 -011 the surfaces lfli l8? Under unusual-' conditions wherein extreme ver' tical angling occurs between the wheel and axle assembly 28 'and -the side frame; the" surface 26 on 1 one:- or 'the-lugs 2i engages-a pad 40 011 the tween for: reception of a journalboxi l0: 'havinga' g adjacenti'sidet ofsthe: frame to -limit thi's rockingmovement between the frame and the journal box I0.

As will be seen in Figure 3, each jaw 8 is tapered toward its lower extremity and presents at opposite sides thereof the diagonal converging inboard and outboard plane faces 42 and 44 respectively which are afforded clearance from the adjacent surfaces 46 and 48 of the inboard and outboard journal box flanges I2 and I4 during relative vertical angling between the wheel and axle assembly 28 and the side frame unaccompanied by any horizontal angling therebetween.

When, however, under severe service conditions as, for example, when the truck proceeds around a curve in the track, it will be understood that extreme vertical angling may be accompanied by simultaneous extreme horizontal angling between the side frame and the wheel and axle assembly 28, in which event, one of the surfaces 46 or 48 will abut the associated surface 42 or 44 to limit this extreme horizontal and vertical angling which may occur with great force. In order to accommodate such conditions and to prevent damage to the various truck parts, the surfaces 46 and 48 and the surfaces 42 and 44 are so designed as to insure engagement between one pair of surfaces 42 and 46 or 44 and 48. Thus, it will be noted that said surfaces 42 and 44 converge downwardly, and the surfaces 46 and 48 of each pair of inboard and outboard journal box flanges I2 and I4 converge toward the longitudinal axis or center line of the wheel and axle assembly 28, and these various surfaces are so proportioned that a combination of extreme horizontal and vertical angling of the wheel and axle assembly 28 relative to the side frame results in flat face engagement between one pair of surfaces 42 and 46 or 44 and 48 throughout substantially the entire area thereof and substantially simultaneous line bearing between the diagonally opposite pair of surfaces.

Each jaw 8 is connected to one pair of the inboard and outboard flanges I2 and I4 by means of a bolt and nut assembly 50 secured to said flanges and extending through an enlarged slot or opening 52 (Figure 1, left) in said jaw. It will be understood that the slot 52 is sufliciently large to afford clearance from the bolt and nut assembly 50 during the above-mentioned angling between the wheel and axle assembly and the side frame.

It is to be understood that I do not wish to be limited by the exact embodiment of the device shown which is merely by way of illustra tion and not limitation as various and other forms of the device will, of course, be apparent to those skilled in the art without departing from the spirit of the invention or the scope of the claims.

I claim:

1. In a journal box mounting for a railway car truck, a side frame tapering in width toward the end thereof and formed at said end with spaced depending pedestal jaws each presenting substantially identical plane abutment faces on the inboard and outboard sides thereof converging toward the bottom thereof, a wheel and axle assembly including a journal box received between said jaws and presenting at opposite sides thereof spaced bearing surfaces arcuately formed transversely of said frame and affording seats respectively for wear plates welded to said frame intermediate said jaws, said box having at each side thereof inboard and outboard flanges embracing the adjacent jaw and normally spaced therefrom, said flanges presenting inboard and outboard abutment surfaces converging toward the longitudinal axis of said assembly whereby extreme vertical and horizontal angling of said assembly relative to said frame is limited by engagement between one of said surfaces and the adjacent face, and inboard and outboard lugs on said box upstanding therefrom centrally thereof, said lugs presenting horizontally arcuate faces on their adjacent surfaces for abutment with said frame to limit relative vertical angling between said assembly and said frame unaccompanied by relative horizontal angling.

2. In a journal box mounting for a railway car truck, a side frame tapering in width toward the end theerof and formed at said end with spaced depending pedestal jaws, each presenting substantially identical plane abutment faces on the inboard and outboard sides thereof converging toward the bottom thereof, a wheel and axle assembly including a journal box received between said jaws and affording a rockable seat for said frame, said box having at each side thereof inboard and outboard flanges at opposite sides of the adjacent jaws, said flanges presenting respectively inboard and outboard abutment surfaces converging toward the longitudinal axis of said assembly, whereby extreme vertical and horizontal angling of said box relative to said frame is limited by engagement between one of said surfaces and the adjacent face, central inboard and outboard upstanding lugs on said box at opposite sides of said frame for abutment therewith to limit relative vertical angling between the box and the frame unaccompanied by horizontal angling, said lugs being horizontally arcuate on the surfaces thereof adjacent said frame to accommodate said horizontal angling.

3. In a journal box mounting for a railway car truck, a frame member with spaced pedestal jaws, a journal box received therebetween and comprising at each side thereof inboard and outboard flanges with abutment faces on their adjacent sides converging toward the center line of said box, said frame being provided with spaced wear plates welded thereto and seated upon transversely arcuate bearing surfaces atop said box at opposite sides thereof, each of said jaws presenting abutment surfaces on opposite sides thereof converging downwardly, said abutment surfaces and faces being so formed and arranged that upon simultaneous extreme vertical and horizontal angling of said box relative to said frame, the inboard face at one side of said box is in engagement with the adjacent surface, and the outboard face at the opposite side of said box is in engagement with the adjacent surface, one of said engagements being along flat areas, and means interlocking each jaw with the adjacent flanges, said means including a rigid member secured to said last-mentioned flanges and extending through an enlarged opening through said jaw, said rigid member being afforded sufficient clearance from the margins of said opening to accommodate said horizontal and vertical angling.

4. In a journal box mounting for a railway car truck, a frame member with spaced pedestal jaws, a journal box received therebetween and comprising at each side thereof inboard and outboard flanges with abutment faces on their adj acent sides convergin toward the center line of said box, said frame being provided with spaced wear plates welded thereto and seated upon transversely arcuate bearing surfaces atop said angers box .atv opposite :sides. thereof; ,eaclrof 'said jaws presenting: abutment surfaces on opposite sides thereof converging downwardly,said abutment surf aces and; :f aces being I so formed; and arranged that upon simultaneous. extreme vertical and horizontal anglingofsaidnbox relative to said frame, the inboard face at one side of saidlbox is in engagement.withtheadjacent surface, and the outboard face at the opposite side of said box is in engagement with'the adjacentsurface, one of said engagements being along flat areas, lugs on the top of said box centrally thereof at-the in. board and outboard sides of said frame for abutment therewith-to limit vertical angling of the box unaccompanied by horizontal angling thereof,- said lugs being horizontally arcuate on-their adjacent surfaces to accommodate horizontal angling of said box.

- 5'. In ajournal box mounting for a railway car truck, aside frame tapering in width towardzthe end thereof and formed at said end with spaced depending pedestal jaws each presenting substantially identical plane abutment faces on the inboard and outboard sides thereof converging toward the bottom thereof, a wheel and axle assembly including a journal box received between said jaws and presenting at opposite sides thereof spaced bearing surfaces arcuately formed transversely of said frame and affording seats respectively for wear plates welded to said frame intermediate said jaws, said box having at each side thereof inboard and outboard flanges embracing the adjacent jaw and normally spaced therefrom, said flanges presenting inboard and outboard abutment surfaces converging toward the longitudinal axis of said assembly whereby extreme simultaneous vertical and horizontal angling of said assembly relative to said frame is limited by flat face engagement between one of said surfaces and the adjacent face and substantially simultaneous line bearing engagement between the diagonally opposite surface and the adjacent face, and a bolt and nut assembly loosely received within an opening in each jaw and rigidly secured to the associated flanges.

6. In a journal box mounting for a railway car truck, a frame member with spaced pedestal jaws, a journal box received therebetween and comprising at each side thereof inboard and outboard flanges at opposite sides of the adjacent jaw and formed with abutment faces on their adjacent sides convergin toward the center line of said bcx, said box affording a rockable seat for said frame, each of said jaws presenting abutment surfaces on opposite sides thereof converging downwardly, said abutment surfaces and abutment faces being so formed and arranged that upon simultaneous extreme vertical and horizontal angling of saidv box relative to said frame, one of said faces is in flat face engagement with the adjacent surface, lugs on top of said box at the inboard and outboard sides of said frame for abutment therewith to limit vertical angling of the box unaccompanied by horizontal angling thereof, said lugs being horizontally arcuate on their adjacent surfaces to accommodate horizontal angling of said box.

'7. In a journal box mounting for a railway car truck, a side frame tapering in width toward the end thereof and formed at said end with spaced depending pedestal jaws, each presenting substantially identical plane abutment faces on the inboard and outboard sides thereof converging toward the bottom thereof, a wheel and axle assembly including a journal box received between said; jawsvand afiording atrockalile seat for" said frame: said: box: havingrat each" side thereofi ins board'iandi' outboardzrfian-ges atr opposite, sidesrof thetadj'acent: javm'said':flangesipresenting' respectively: inboard: and outboard: abutment: surfaces converging toward the longitudinal axis; of i said assembly, whereby extreme simultaneous vertical and horizontalanglingiof said box relative to said frameiss limited :by: engagement between one of said. surfaces and: theadjacent face,- and a bolt and .nutlassemblylooselyreceived within an open ing :through each jaw-'- and connected tothe associated flangess 8& In a journal box mounting for a railway car truck, a side frame tapering in width toward the ends-thereof and formed at said end with spaced depending. pedesta'l jaws'each presenting" substantially identical planeabutment faces on the inboard andiloutboard sides thereof converging. toward :the bottom thereof; awheel' and axle -as-- sembly-including ajournal box receivedbetween saidijaws and presenting atbpposite sides thereof spaced bearing surfaces arcuately formed transversely of said frame and affording seats respectively for wear plates welded to said frame intermediate said jaws, said box having at each side thereof inboard and outboard flanges embracing the adjacent jaw and normally spaced therefrom, said flanges presenting inboard and outboard abutment surfaces converging toward the longitudinal axis of said assembly whereby extreme simultaneous vertical and horizontal angling of said assembly relative to said frame is limited by flat face engagement between one of said surfaces and the adjacent face.

9. In a journal box mounting for a railway car truck, a frame member with spaced pedestal jaws, a journal box received therebetween and comprising at each side thereof inboard and outboard flanges at opposite sides of the adjacent jaw and formed with abutment faces on their adjacent sides converging toward the center line of said box, said box affording 'a rockable seat for said frame, each of said jaws presenting abutment surfaces on opposite sides thereof converging downwardly, said abutment surfaces and abutment faces being so formed and arranged that upon simultaneous extreme vertical and horizontal angling of said box relative to said frame, one of said faces is in engagement with the adjacent surface, and a bolt and nut assembly loosely received within a slot in each jaw and secured to the associated flanges,

10. In a journal box mounting for a railway car truck, a side frame tapering in width toward the end thereof and formed at said end with spaced depending pedestal jaws, each presenting substantially identical plane abutment faces on the inboard and outboard sides thereof converging toward the bottom thereof, a wheel and axle assembly including a journal box received be tween said jaws and affording a rockable seat for said frame, said box having at each side thereof inboard and outboard flanges at opposite sides of the adjacent jaws, said flanges presenting respectively inboard and outboard abutment surfaces converging toward the longitudinal axis of said assembly, whereby extreme simultaneous vertical and horizontal angling of said box relative to said frame is limited by engagement between one of said surfaces and the adjacent face.

11. In a journal box mounting for a railway car truck, .a frame member with spaced pedestal jaws, a journal box received therebetween and comprising at each side thereof inboard and outboard flanges with abutment faces on their adjacent sides converging toward the center line of said box, said frame being provided withspaced wear plates welded thereto and seated upon transversely arcuate bearing surfaces atop said box at opposite sides thereof, each of said jaws presenting abutment surfaces on opposite sides thereof converging downwardly, said abutment surfaces and faces being so formed and arranged that upon simultaneous extreme vertical and horizontal angling of said box relative to said frame, one of said faces at one side of said box is in engagement with the adjacent surface.

12. In a journal box mounting for a railway car truck, a frame member with spaced pedestal jaws, a journal box received therebetween and comprising at each side thereof inboard and outboard fianges at opposite sides of the adjacent jaw and formed with abutment faces on their adjacent sides converging toward the center line of said box, said box affording a rockable seat for said frame, each of said jaws presenting abut- REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,097,970 Doerr May 26, 1914 1,107,890 Bush Aug. 18, 1914 1,406,099 Stafford Feb. 7, 1922 1,742,860 Horger Jan. 7, 1930 1,745,320 Brittain Jan. 28, 1930 1,779,526 Barrows Oct. 28, 1930 1,845,647 Brittain Feb. 16, 1932

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