USRE21330E - Journal bearing - Google Patents

Description

Jan. 23, 1940. w. H. HEckMAN JOURNAL BEARING 3 Sheevts-'Sheet 1 Original Filed July l5, 1932 Jin-- 23, 1940- w, H. HECKMAN Re. 21,330

JOURNAL BEARING Original Filed July 15, 1932 5 Sheecs--Sheet 2 Jawel-071 f Jan' 23 1940- w. H. HECKMAN Re. 21,330 t JOURNAL BEARI'NG f original'iiled July 15, 1952 5 Sheets-sheet s 159661665' gaaanz 16mm/7m..

n Reissued Jan. 23, l194:0

UNITED STATES JOURNAL BEARING' William Hunter Heckman, Chicag'olll.

original No. 2,072,168, dated March 2, 1937, se-

rial No. 622,692, July 15, 1932. Application for reissue May 25, 1938, Serial No..209,858

29 Claims.

This invention relates in general to improvements in journal'bearings, and more particularly to improvements in the ytype of journal bearing especially adapted for use onl railway rolling stock, and while the invention is illustrated and described as incorporated in a journal box and journal` bearing .for the axles o-f railway cars and the like, it will be understood that the invention may be employed for other analogous purposes.

The present existing` types of railway journal boxes and journal bearings generally include a box or housing open at one end to receive the journal below which a lubricant soaked packing of waste or other material is carried by the box, the other end of the box having a suitable cover permitting access to the interior thereof, a half or less bearing member being mounted in the top of the box and'lying against the journal, a suitable keeper plate, commonly called a wedge being interposed -between the said half-bearing, commonly termed, a brass, and the top of the box. This type of bearing has been improved more or less in recent years by modified forms of lubricating systems, but owing to the trend toward higher speeds and greater loads, the possibility of hot bearings has been increased,kdue to low bearing area or surface producing increased friction per unit area and due to inadequate lubrication, or due to shreds of waste getting between the collar of journal and outer end of brass. Further difliculties arise due to collar heat caused by wheel ange wear, which cannot be readily avoided in the prior art bearings. Such bearings require positive, dependable lubrication in combination with a sufficient bearing surface to reduce the concentration of heat, and one of the objects of the present invention is to provide an improved bearing in which adequate and efficient lubrication may be assured with a desirable conservation of the lubricant at all times, in which an increased area of bearing surface is provided, which is constantly changed while the car or engine is in motion, so `that with the thus increased area of bearing contact and constantly changing bearing surface I am enabled to provide a bearing which will operate over long periods of time with relatively little attention and yet will support heavy loads e'lciently at highv speeds. Furthermore, the nature of the bearing is such that itsv dimensions and the fact that it surrounds the journall serves to keep the journal in proper position with respect to wheel centers, since the bearing extends below the point at which the greatest thrust occurs and takes up this thrust and prevents the brass from raising away from the journal as now tends to occur in standard A. R. A. bearings.

The present invention has as further objects and advantages the provision of an improved j 5 floating bearing bushing for wheel journals, which is adaptable to existing journal boxes, so that the necessity for complete replacement of the existing journal boxes or axles, or of machine work or other change on axle journal or wheel 10 liubris not necessary to the employment of my in' vention; and the provision of an improved bearing for journals in which the bearing elements, including the so-calledwedge member and the floating bushing and lubricant housing or shield may be installed in and removed from the journal box, without thev necessity of taking the box out of the truck frame, making the invention particularly useful in connection with freight car trucks; although it will be understood that the invention is useful on passenger car, engine front and trailer trucks or on the trucks of street railway, subway, elevated and other railway rolling stock; and the provision of an improved journal bearing in which a constant supply of adequate lubricant may be maintained at all times and in which lubricant may be, if desired, in some circumstances introduced under pressure to the surfaces of contact of the bushing, journal and supporting bearing. v i

This invention also contemplates the provision of an improved arrangement of the oating bushing whereby it may be adjusted upon installation to iit the journal; the provision of an improved shieldl to house the oating bushing to protect the same against the entrance of extraneous matter; the provision of an improved journal bearing in which the lubricant supplied to the journal bearing is retained bythe rotatable bushing and in which a constant supply of lubricant is taken up by the bushing as it rotates for distribution over the entire surface of the journal and bearing; the provision of an improved journal bearing in which a relatively heavy lubricant known as hard grease may be employed initially forced under pressure to 'the wearing surfaces ofthe journal and bearing; the provision of an improved journal box of the character referred to in which the bearing surfaces are maintained in proper relative positions even when the car may be unloaded by car dumping means and in whichthis may be accomplished with a standard journal box without danger of loss of the lubricant; and the provision of an improved journal bearing in which the de-` fects yof the. prior .art bearings, such as collar 2 l heat, are eliminated and which responds to all of the requirements of the A. R. A. and meets the requirements of modern fast freight or highspeed express passenger service.

The foregoing, and such further objects and advantages as may appear or be pointed out as the description of this invention proceeds are contained in `the accompanying drawings of which: Figure l: is a .longitudinal sectional viewlof a. journal box and journal bearing incorporating improvements of this .invention and taken on'a vertical line;

FigureZ is a longitudinal sectional viewv taken on the line 2 2 of Figure 1, looking in the direction indicated by the arrow; Figure 3 is a composite end elevationand ver.- tical transverse sectional view,;parts.b,eing broken away to more clearly illustrate theinvention; u

Figure 4 is a transverse sectional view of bear? ing block taken on the line 4 4 of Figure 2*, looking in the direction indicated lby the arrow;.\ Figure 5 is a `sectional ldetail view of the oating bushing.

Referring now `more particularly to `,the drawings, itfwill be observed that I providethe standard journal box orhousing `5, which in the `present instance `is shown ,as an original installation with ,the present invention thereinz but which will `be suitably modified as` will hereinafter appear .Where .the essential parte of my invention are incorporated zin an `already existing journal box. v v

Thebox 5 is composedof the longitudinal vertical side walls 6, whose lower edges are extended as,` at 1, toprovide reinforcing portions v1o-operatingwith vertical external lues 8, in spaeedrelation, `said lues being so .arrangedv as to serveto embrace the ,spaced legs forming the pedestal jaw of the truck frame `(n ot shown) providedfor receiving the journal boxf The ton 9 ,of the .boxl

may be of the conventional forni requiredtofit diierent styles :of truck frames. The external configuration of the box will, it will be` understood, be subject `to variation in accordancelwith the tvpelof truck to which the box ,is to be applied. andfdoes notessentiallventerinto themesent invention. In some cases the box might `evenbe east integrally with the truck frame, a oommon practise in the easeeof freight oars and other trucks. l f

v'Iheyinnor surface of lthe top wall `il, indicated at Il, is substantially `fiat andthe kinner surfaces of the side walls E `are provided,r as in standard practice, with `the vertical abutmentslll itv being understood that these allotments, are to'loey found inthe conventional journal box now-.incommon use, and serve the purpose ofY forming retainingk abutments for ypreventing the wedge or `bearing member, .within limits., from sliding longitudinallyin the box, and also yserve totake lateralthrust. These `abntinents perform substantially the identical function. in the present invention Der-` fornled by them in standard practice. Front stops llla are also found in the box which performla `function aswill hereinafter appear.

It will be observed Athat the journalgbox, being of the conventional form, is-.provided with front stops 10a, which-prevents-movement in an outward direction of the bearingblock I1 hereinafter described, and'itlwillalso be understood that'the vertical abutments ft2, generally :termed side stops, `are cut :away yat their lower portions vfor a short distance vto :accommodate .fthe rotating journal bearing or bushing hereinafterldesgcribed. This .issubstantially i. all of l1 the changes` required on the standard journal box to accommodate the bushing structure of this invention. A further slight `change will be required in the rear end of the box, thatv is the wheel end, which will be pointed out hereinafter. 1

It will thus be observed that the two front stop members prevent movement away from the Wheel end of the b ox on the part of the lubricant containing block yhereinafter described' and that theslde stops serve to prevent movement of the block Il in the opposite direction, that is toward `the wheel, but that in any event there is sulfi- `fromgthe Wheel, is: conventionally provided `with anannular `flange 23, theubearinug proper lying between-the circumferential shoulder 24 and said annular flange, thusin akmeasure limiting the possible end play or thrust of the yjournal in the box. i

The bearingblock `Irl referred toabove is conveniently provided with a compartment 25, by

virtue of thedouble walls 25 and 21, the wallk 21 being karcuate andcurvedas indicated at I8 to make a running fit on the oating `bushing interi posed between the `same and the `reducedportion 22ofthe`axle. Y

Within compartment 25 I provide a plurality of abutments y8, which .connecty the two Walls 2E V`and 2,1,V thus .preventing kdistortion of these walls duetoheat and loadw The ,walls 21, near the longitudinal straight edges thereof, kin each instance is provided with Y anelongated groove29, communicating with the lowermost portions yof the compartment 25, :by theprovisionof ports a, these grooves' thus establishing cominumcatiozil Lbetween the compartment ;:2 ,5,.which is adapted to` contain .a lubricant, andthe-adjacent surface of the floating bushing designated 30, and .to foe more `particularly describedlater.. i

The bearing block `Il is longitudinally disposed in :the journal box` and the upper wall yof said block is tapered at its ends yasjindicateol at 3l and32,simlarly.to the conventional form of the so-.called `wedge .or the bearing block now employed in journal boxesso that'the installation of the 4bearing Hina corlventionalexisting box is of ya cer-tain'amount of rocking movement of the boxon thefbearing block withfrespect to thejournal such as becomes necessary `to allow for `lateral .play Aor `swaying .of the truck proper, `particularlyllwhere the box isLnot'spring-mountedon the truck iframe. 'lhisalso alloyvsvfor displacement dueto'superelevation, ofthe track on curves. Theupper wallg25 of the block tl yis provided with threadedepeltures .33 enclosed by suitable plugs. these apertures being vdisposedwith their longitudinal axes on radii .described from the center ofthe axle, that isto say` fromgthecenter oif the aperture ato-'the vinner surface of `che .block wall il.' Thexupper :Wall :26.is suitably recessed as `,indicated :at .3,4 vto -accommodate ythe heads of theclosin'g Dinger, l

sections.

for convenience, are designated 42 and 43, at

It will be observed that the block I1 has its longitudinal walls 35 disposed between and adjacent tothe internal abutments I2 within the journal box, so that sub-stantial transverse movement of thev block is effectually prevented, al-

though the desired rocking movement due to the tapered ends may take place. The bearing surface I8 of the wall 21 of the block is provided with one or a plurality of transverse grooves 36 which communicate with the longitudinal grooves 29 previously described, thus an adequate distribution of the lubricant contained within the chamber 25 is had at all times on thearcuate bearing' y surface I8 of the block I1.'

For the purpose of introducing lubricant to the chamber 25, I provide a neck portion 31 having aninternal conduit 38 which extends through a suitable aperture 39 in one ofthe walls of the"k journal box.

tion is inserted into an existing journal box, the

Where the device of this invenupper right hand portion of one of the side walls may be removed to receivethe neck 31.

On the other end of the neck 31, I provide any suitable means for forming connection with a grease gun or the like, such, for example, as a standard grease connection known to the trade as an Alemite connection, and indicated at 46. This arrangement permits of the introduction of Q relatively hard grease into the chamber for lubricating the bearing.

The floating bushing 3l),v previously generally referred to, is preferably made in two half sec*- tions, although it will be understood that this bearing may be made in more than two sections if desired. These sections are substantially half sections as best appears by the dotted lines indicated at 4I-4I in Figures 1 and 3. A portion of the journal has been broken away in Figure 1 so as to show the junction between the two half Each of the two half sections which,

diametrically opposite points, are provided with complemental recesses 44 and 45, complemental projections 4E and 41 being provided for engage-y ment in ther recesses 44 and 45 respectively. Thus, when the two sections of the floating bushing are applied to the journal, the projections 46 and 41 on diametrically opposite parts of the bushing Will engage in their respective recesses,

. thus holding the inner or wheel end of the bushing about the journal.

These projections 46 and 41 and their recessesv are so proportioned as to size and angularity of surface that upon tightening of the clamping means hereinafter described, the two sections of' the bushing will be brought into substantially transverse alignment as shown in Figure 1 of the drawings.

The ends of the bushing are provided with circumferential radial anges 48 and 49, which in the case of the flange 48 serves to engage the adjacent end surface 56 of the block I1 and at the same time to form a thrust bearing for engagement at times with the shoulder 24 on the journal, the flange 48 being appropriately beveled or curved as at 5I to facilitate such engagement.

The opposite end flange 49 lies inside the ange or collar V23 which is found on substantially all journals.

In order to insure a complete distribution of ing surfaces of the bushing, the latter is provided with a plurality of apertures 52` which have their outer ends countersunk or flaring so as'to facilitate the reception of lubricant from the grooves' in the bearing surface I8 of the block I1. In this lubricant over the internal and external bearmanner a thorough distribution of lubricant is obtained as the bushing rotates.

Another advantage of countersinking the outer ends -of the apertures 52 in the rotating bushing is that the actual area of contact between the bushing and the bearing block I1 is reduced so that the tendency for heating of the bearing under heavy loads is materially reduced. The number of apertures provided and the size of the countersunk portions thereof can be best determined in connection with bearings for various purposes and depending on the degree of maximum load to which the bearing is to be subjected and whether it is to be used in high-speed service or not.

In order to bring the two sections of the bushing into snug engagement with the journal so that there will be no chatter or lost motion between the two, I provide connecting and adjusting means on each of the bushing sections. These v means are preferably in duplicate at substantially diametrically opposite points so that an accurate and proper adjustment can be obtained from without the journal box. The connecting means referred to comprise in each case an abutment 55, carried by a longitudinally extending lug 56 which is, in turn, cast integrally with an extension 51 of the complemental bushing section, this extension projecting from the end flange 49 remote from the vwheel end of the journal. The lug 56 is provided with an aperture through which a bolt 58 extends, said bolt having a special shape of head 59, one surface 6D of which engages the abutment 55, and theopposite surface of said bolt, indicated at 6I, being inclined so that the bolt head 59 in effect forms a wedge.

The complemental section of the bushing is provided with an abutment 62 which has an in clined surface 63 disposed in alignment with and complemental to inclined surface 6I of the head 59 of the bolt 58. A nut 64 lies beneath the lug 56 and by right hand turning of said nut the head 59 is drawn down between the abutments 55 and 62, thus moving the two bushing sections longitudinally with respect to each other. This movement of the bushing sections, due to the projections 46 and 41, and their engagement with the recesses 45 and 44, respectively, brings the two sections of the bushing intoengagement with the journal with a rotating fit. Any suitable means may be employed for locking the nut 64, such, for example, as a split washer or the'like shown at 65. It will Abe observed that the connection just described and shown in side elevation in Figure 1 is duplicated at a substantially diametrically opposite point, that is to say, the abutments and vbolt are as a complete assembly duplicated diametrically opposite and indicated generally at 66 in Figures 2 and 3. Thus a nicety of adjustment may be obtained by separate manipulation of the two adjusting wedges. It will be observed that the abutments 55 and 62 and their associated elements are extended a suflicient distance beyond the collar 23 so thaty Additionally the angularly offset relationof the portion 56 and the surface 63 with respect to the extended abutments 55`and' 62 respectively, not

'.beingaccomplished'from the Wheel end of thev box before the journal is in position, a portio-n of 4the flanges forming the channels or recesses 85 `will have tol be removed inasmuch as in the standdown. The journal and the shield, together with the bushing, are now ready to receive the box which is applied bottom side up to the journal, that is to say, the bushing, the shield and the journal areal] inserted in this position with the .bottom side up into the box.

The journal box is then rotated on the journal, which, due to the contact between the box wall I4 and the rib 1|, causes the shield to rotate with the box.' 'I'he box ls then jacked up to hold the shield against the-lower portion of the adjacent bushing section. This raises the top of the box .to sufficient distance beyond the upper part of the bushing to permit of the insertion of the bearing block I1. This bearing block is inserted to a distance until the lugs 61 are adjacent to the side stops l2 and the projections 61a are inside of the front stops Illa. When the block l1 is in proper contact with the shield the box is lowered on to bearing block I1 by removing the jack. It is to be kept in mind that the jack holds the bottom of the box against the rib 1I and thus raises the shield the short distance allowed between the shield and thev adjacent bushing section, so that the upper edges of the shield are a slight distance higherl than they normally assume in operation, and that I therefore when the jack is removed the block,

having become engaged with the shield and resting on the adjacent bushing section, retains the shield by virtue of the pawl engagement from dropping into the box.

It will be understood that where quick repairs are to be made on cars in service, this may be done merely by jacking up thel truck frame'to remove the box, and the bushing may be then applied to the journal and the shield placed in the box beneath the bushing, the box jacked up on the journal and the bearing block inserted so that the same becomes connected with the shield. l

It will be understood that the description hereinabove appearing of assembly of the box and bearing parts of this invention is alternative, and, dependent upon the'prevailing conditions, may be departed from by-the mechanic at the time of the installation.

Having thus described my invention arid illustrated its use, what I claim as new and desire to secure by Letters Patent is:

1. In a journal bearing, in combination, a box or housing having an opening at one end and adapted to receive a journal, a bearing block in said box, a revoluble floating sectionalized bushing member surrounding the journal and provided with annular flanges radially extending to receive the bearing block, and means on said 4bushing including a wedge member for bringing i .2. In a journal bearing, in combination, a box or housing having an opening at one end and adapted to receive a journal, a bearing block in said box, a revoluble floating bushing 'member surrounding the journal and provided with annular end flanges radially extending to receive the bearing block, and a lubricant shield supported from the bearing block and encircling said floating bushing in spaced relation thereto.

3. In a journal bearing, in combination, a box or housing having an opening at one end adapted to receive a journal, a bearing block in said box adapted to contain a lubricant, a revoluble floating bushing surrounding the journal and in contact with the bearing block, a shield for said bushing removably supported by said bearing lblock and surrounding but spaced from the bushlng, and means extending from said journal box lfor introducing lubricant into said bearing block.

4. In a journal bearing, in combination, a box or housing having an opening at one endadapted to receive a journal, a bearing block in said box adapted to contain a lubricant, a revoluble iioating bushing surrounding the journal and in.

or housing having an opening at one end adapted l to receive a journal, a bearing block in said box adapted to contain a lubricant, a revoluble iloating bushing surrounding thejournal and in contact with the bearing block, a shield for said bushing surrounding in spaced relation to and'.

underlying the bushing, and a locking pawl for detachably connecting said shield to said bearing block.

6. In a journal bearing,l in combination, a box or housing having an opening at one end adapted v to receive a journal, a bearing block in said box adapted to contain a lubricant, a revoluble iloating bushing surrounding the journal and in convtact Awith the bearing block,'a shield for said bushing surrounding in spaced relation to and underlying 'the bushing, and a locking pawl for detachably connecting said shield to said bearing block, and fixed abutments on said shield and bearing cooperating with said pawl.

'7. In a journal bearing, in combination, a box or housing having an opening at one end and adapted to receive a journal, a bearing block in said boxadapted to contain allubricant, a revoluble floating bushing surrounding the journal and in contact with the bearing block, said bushing being made in separable sections, said sections having cooperating marginal portions and means carried by the outer ends of said sections for relatively moving said sections and thereby to cause said marginal portions to bring said sections together for clamping them about said journal. j

8. In a journal bearing, in combination, a box or housing having an opening at one end adapted to receive a journal, a bearing block. in said box adapted to contain a lubricant, a revoluble floating bushing surrounding the journal and in conmeans at the outer endsthereof for relatively sliding said sections to thereby cause said marginal portions to bring said sections together lfor clamping same about said journal.

9, In a journal bearing, in combination, a box or housing having on opening at one end and adapted to receive a journal, a bearing block in vsaid box adapted to contain a lubricant, a revoluble floating bushing surrounding the journal and in contact with the bearing block, said bushingy ried by said sections for clamping them about said journal, and ashield carried bysaid bearing block and encircling saidr bushingv in spaced relation thereto.

l0.y In a journal bearing; in combination, a box or housing having a openingy atv Vone end and adapted to receive a journal, a bearing block in said box adapted to contain a lubricant, a revolublo floating bushing surrounding the journal and in contact With the bearingblock, a` shield for said bushing underlyingv the same, and a locking paWl for detachably` connectingsaid shield to said bearing'block, and fixed abutmentson said shield and bearing cooperatingwith saidpawl, said'pawl being adapted to Aei'flgage saidishiel'd' upon an` up- Ward movement of the shield when the bearing' is relieved of its dead'load.

1l. In a journal bearing, in combination with fthe journal and a journal box, a bearing block on Which the journal box is mounted, a rotating split bushing surrounding ,the 'journal and"` in contact with a complemental surface of theblock, said bushing having peripheral endl flanges for engagement with the ends` of `they bearing'block for limiting endy play of the bushing; meansffor supplying lubricant through` said block' toy said vbush:-

ing, and a lubricantl retainer.y ork shield encom.-

passing the bushingfin spaced` relation thereto;

12. Ina journaltbearing, in combination with the journal and afjournallboxya: bearingbloclry on which. the journal box ismounted, a.l rotatingqspl'it bushing surrounding the journal and in contact with a complemental surface of the, block, said bushing having peripheral endy anges forv engagementfwith the ends; of theibearingI block for limiting' end play yofb the Abushing, complemental interlocking members on thepartszyoic said; bushing, and means for clamping: the parts of said bushing onto thev journal;y

13. In journal bearing, in combination with the: journal and' a` journal box', a. bearingrblockon which the kjour-nal'loox,isfmounted, ai rotating split bushing surrounding the journal'r andfin; contact With a complemental surface: ot the block,`said bushing. having peripheralv end iianges` for" engagement with the ends of theibeairing block: for limiting end' play` ofy the bushing, complemental interlockingv members` ony the'v adjacent edges; of the parts ofr saidy bushing, andi'meansfor setting up a relative longitudinal'movement of saidp parts to thus bring the parts of thebushing'into run ning engagementv with the journal.

14'. In a bearing, a journal, a relatively'xed bearing member, a revoluble bushing interposed between said' bearing. member` and said` journal including arcuate sections `having complemental 'recesses andprojections, and wedge members engagingy complementall portionskv of said arcuate sections forl bringing said projectionsand recesses into operative rengagement for `clamping said bushing about said journal.

15. In a bearing, a journal,` a relatively xed bearing member, a revoluble bushing interposed between saidbearing member and said journal including arcuate sections having complemental recesses andy projections, and Wedge members engagingcomplemental portions of said arcuate sections for bringing said projections and recesses into operative `engagement for clamping said bushing about said journal, said 'sections having arcuate anges forming end peripheraliianges, a shieldV surrounding said bushing and having its end edges encompassed within said flanges and serving to retain lubricant, and toggle means for andmeans'for retaining saidy bushingsections in rbeing" made in separablesections, and means car'- Vreleasably connecting saidishield` with said'bear'- ing member. i

16` In a bearing, a journal, a relatively xed' bearing'member, a revoluble bushinginterposed l betweensaid bearing member and said journal in- *I5 cluding arcuate sections having complemental recesses and' projections; and i Wedge f members 4engaging complementar portions of said arcuate sections for bringingfsaid projections and recesses i l into operative engagement for` clamping said iIl) bushing about said' journal, said* sections hav.- ing arcuate flanges forming end perihperal anges, a shield surrounding said bushing and having its end edges encompassed within* said flanges and serving to retain lubricant, and toggle A1B means for releasably connecting said shieldwith said bearing member, said'. bearing'blo'ck having recesses for engagement with complemental abutmentson a journal box receiving said block for n lirnitinLr endwise but permitting relative rocking "I0 movement between said block and journal'bo-x;

1'?. In ajournalbearingin combination, a box or housing adapted toireceive a journal, a bearing block inA saidbox, a rotatngbushing comprising a plurality of sections surrounding said journal, 25

, and? means for retaining said.y bushingsections in engagement Withv said journal including wedge portions integral withz said bushing sections, whereby said sections mayy be movedl relatively with` respect to eachother:

18; Ina journalbearing, in combination, a box or housing'adapted:torreceive a: journal, azbearing block in` said. box,` a rotating bushing comprising a` plurality 'ofi sections: surrounding said journal,

engagement with said journal; saidmeans including portionsl of said sections interlocking: With each other. f

19. In ajournal bearing, in combination, a box orr housing adapted to receivey a journali a bearing block in-` said yboina rotating bushing comprising a` plurality off sections surrounding said journal and means for retaining: said bush.- ing sections in engagement withy said journal, said means includingv portions `of said.. sectionsjs and means for moving said sectionsinterlocking with eachother relativelywithv respect to` each other. v

20; In a journal bearing; in combination, a box or housing adapted to receive a journal, a bear- .i ing block in said box, a rotatable bushing comprising a plurality of sections surrounding said journal and having interlocking portions, and means for moving said sections relatively with respect to each other whereby` saidy portions interlockrto retain saidbushing sections in engagement" with said journal.

2l. In a journal bearing, in combination, a box or` housing having an opening at one end adapted to receive a journal, a bearing' block in said box adapted to contain a lubricant, a revoluble floating bushing surrounding the journal and in contact with the bearing block, a shieldfor said bushing under-lying thesamein spaced relation thereto and means for detachably supporting said shield' on said bearing block including cooperating integral portions of said. shield and said block. i f

22; In a journal bearing, vin combination, a box or housing having an opening at one end adapted to receive a journal, a bearing blockI in said box,

land a revoluble floating bushingsurrounding the journal and in 'contact with the bearing` block,

.said bushing being made inseparable sections heldy together aboutsaid journal by means car- ,75

f bearing member, a revoluble bushing interposed between said bearing member and said journal comprising a plurality of arcuate sections having complemental recesses and projections, and

Wedge means for bringing said projections and recesses into operative engagement for retaining said bushing sections about said journal comprising cooperating extendedportions of said bushing sections and means for connecting said extended portions.

25. In a bearing, a journal, a relatively xed bearing member, a revoluble bushing interposed between said bearing member and said journal comprising a plurality of arcuate sections having complemental recesses and projections, and Wedge means for bringing said projections and recesses into operative engagement for retaining said bushing sections about said journal comprising cooperating extended portions of said bushing sections and means for connecting `said extended portions, said extended portions and connecting means alfording means for causing a resilient force to maintain the relation of said bushing sections.

26. In a journal bearing, in combination, a box or housing having an opening at one end adapted to receive a journal, a bearing block in said box adapted to convey av lubricant, means for supplying lubricant to said bearing block, a revoluble floating bushing surrounding the journal and in contact with the bearing block, said ybushing being made in a plurality of separable sections, and means for retaining said bushing sections about said journal consisting of cooperating integrally formed Wedge portions of said sections and connecting means for causing the said wedge portions to cooperate.

27. In a bearing, a journal, a relatively fixed bearing member, a revoluble bushing interposed between said bearing member and said journal comprising a plurality of arcuate sections and means on said bushing including a wedge member for bringing the sections of said bushing into engagement with the journal.

23. In a bearing, in combination, a journal, a bearing block, a revoluble oatng bushing member surroundingsaid journal, and alubricant shield supported from the bearing block and encircling said iioating bushing in spaced relation thereto.

29. In a bearing, in combination, a journal, a bearing block, a revoluble oating bushing member surrounding the journal and provided with annular end anges radially extended to receive the bearing block, and a lubricant shield supported from the bearing block and encircling said floating bushing in spaced relation thereto and between said annular end anges of said bushing.

WILLIAM HUNTER HECKMAN.

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