US1572121A - Journal-box bearing - Google Patents

Description

Feb. 9 1926.' 1,572,121 H. PARKER JOURNAL BOX BEARING Filed Nov. 7, 1921 v 2 Sheets-Sheet 1 INVENTOR JZJZZQ rd Erie ATTORNEYS Feb. 9 1926.

H. PARKER JOURNAL BOX BEARING Filed Nov. '7, 1921 2 Sheets-Sheet 2 By M ATTORNEYS Patented F eb." 9, $1926.

UNITED. STATES PATENT orries.

HUBBARD PARKER, OF CHICAGO, ILLINOIS; JENNIE C. PARKER EXECUTRIX OF SAID HUBBARD PARKER, DECEASED.

JOURNAL-BOX BEARING.

Application filed November 7, 1921. Serial Nb. 513,458.

To all whom it may concern:

Be it known that I, HUBBARD PARKER, a

citizen of the United States, and a resident of Chicago, in the county of Cook and State ofIllinois, have invented a new and useful Improvement in Journal-Box Bearings, of

which the following is a full, clear, and

exact description.

My invention relates to improvements in journal box bearing, and it consists in the combinations, constructions, and arrangements herein described and claimed.

An object of my invention is to provide a journal box hearing which is of the roller i provide a'device of the type described which e, which permits the required longitudinal play of five-.eighths of an inch between the journal and the box.

A further object of my invention is to provide a device of the character described has a novel means for oiling the bear- A further object of my invention is, to provide a device of the type described in which the roller bearing is ofnovel construction and is of the flexible type.

A further object of my invention is to provide a device of the type described in which the bearing sleeve is of novel construction. 1

. Other objects and advantages will appear in the following specification, and the novel features of the invention will be articularly pointed out in the appended c aims.

My invention is illustrated in the accom-v panying drawings, forming part of this application, in which- Figure 1 is a longitudinal'section ofthe device as applied to a standard journal box, Figure 2 is a section along the line 2-2 ofFigure 1,

Figure 3 is a section along the line 33 of Figure 1,

Figure 4 is a plan viewof a portion of the roller chain used in the device,

Figure 5 is a View of the disassembled parts used in the roller chain,

Figure 6 is an end elevation of a portion of the roller chain,

Figure 7 is a perspective view of the outer .lfnk used in the roller chain,

\ Figure 8 is a perspective view of the inner link used in the roller chain,

Figure 9 is a view of the disassembled parts which comprise the sleeve,

Figure 10 is a modified form of the device, j

Figurell is a section of another modified form of the device,

Figure 12 is a section of another modified form of the device, and

Figure 13 is a section of still another modified form of the device.

In carrying out my invention, Imake use of a standard railway car journal box 1 and of a journal 2 which is rotatably disposed therein. The journal 2 is provided with an annular elongated groove 3, the groove being curved adjacent each end thereof to provide shoulders 4 and 5. Around the journal 2 and disposed in the groove 3 is a roller bearing of the flexible type. The parts heretofore described form no part of the invention except in so far as they cooperate with the parts about to be described.

This roller bearing is clearly shown in Figures 4, 5, 6, 7, and 8. As will be seen in Figures 4 and 5, the bearing comprises two parallel roller chains 6 and 7 which are spaced from each other by rods 8'. Each 7 of the chains 6 and 7 is made up of a plu-- rality of inner and outer'links'8 and 9, re-

spectively. The shape of these links is clearly shown in Figures 7 and 8. The body portion'of the outer link 9 is provided with laterally projecting cylindrical portions 10 and '11. These portions extend from the outer side of the link to substantially the middle thereof. The bod portion of the outer link 9 isalso provided with cylindrical recesses'12 and 13 which are adapted to receive the cylindrical portions 14 and 15 of the inner link 8. It will be seen that the cylindrical portions 10 and 11 have the same diameter as the recesses 12'and13. Each of the cylindrical portions 10 and 11 isprovided with a central bore. The link 8 i' provided with pins 16 and 17 which projecil from the portions 14 and 15 and are adapted to enter the bores 18 and 19 in the cylindrical ortions 10 and 11. As clearly shown in igure 6,-the outer surface of the inner link 8 and the outer surface of the outer link 9 lie in the same plane, and are rounded adjacent their upper outer edges for a purpose hereafter described. The rods 8 are adapted to project into bores 20 in the inner links 8. It will be noted that the rods 8 bear against the end walls of the bores 20 and are rigidly secured in place, and therefore prevent the roller chains 6 and 7 from moving inwardly. The links on each rod are prevented from rotation with respect to each other. It will also be observed that every other rod 8 is projected into bores 21 in the outer links 9. These pins have openings therein adjacent the ends thereof, and cotter pins 22 are adapted to be projected through openings 23 in the outer links 9 and into the openings 24 of these pins. In this manner, the roller chains 6 and 7 are prevented from moving inwardly or outwardly and the rods 8 prevent any lateral movement of one chain with respect to the other. The inner links 8 are also provided with bores 25 and 26 which are adapted to receive trunnions 27 of roller bearings 28. The ends of the roller bearings do not abut against the inner surfaces of the chains 6 and 7 and are therefore permitted to play slightly back and forth .between the roller chains 6 and 7.

It.will be observed that this construction rovides a flexible rollerbearing. The bear mgs 28 are permitted a slight movement on their longitudinal axis,but are prevented from any lateral movement with respect to the links 8. The links 8 and 9 are pivotally secured to each other b means of the pins 16 and 17, thus giving t e roller bearing the desired flexibility and accurately spacing the roller. i

As heretofore stated, I mount the roller bearing in the groove 3 of the journal 2 and mount a sleeve 29 thereover. This sleeve is composed of two or more sections 30 and 31 which are cylindrical in shape and are clearly shown in Figure 9. Each section is provided with a tooth 32 which is adapted to project into a depression 33 of'the other section when the two sections are assembled.

Each section is also cut longitudinally at 34,.

thus giving the required resiliency thereto;

As will appear in Figure 1, the section 31' is first inserted into the box 1 and is disposed over the roller hearing. The section 30 is also inserted into the box in a like manner and is disposed over the roller bearing.

It will be apparent that by inserting the.

tooth 32 into the depression 33 of the section 31, the two sections will be held together as a unit. The section 30 is also provided with a recess 35 which is adapted to receive a lugv 36 carried by an oil pan 37. The pan 37 is sleeve 29 by means of a spring, 39. The

roller bearing as it revolves with the journal 2 will therefore be, automatically oiled, since the lower portion of the roller bearing is immersed in the oil 40car1'ied by the pan 37. The pan 37 has curved side Walls 40, as clearly shown in Figure 3, thereby providing an effective means for returning the oil to the bottom of the pan.

A hood 41 of the shape shown in Figures 1, 2, and 3 is-disposed over the top of the sleeve 29 and is securely held in' place by a wedge 42. The hood has a semi-cylindrical recess 43 therein which is adapted to receive the roller bearing and is also provided with a'substantiallyflat top 44 on which the lower surface of the wedge 42 abuts. The hood 41.is also provided with a recess 45 into which the upper portion of the sleeve 29 projects. It is a well known fact that in surface 44 of the hood 41 with alike curve.

The wedge 42 is therefore of uniform thickness, which permits it to be placed in the box 1. The provision of this curve permits the journal 2 to swing slightly in a vertical plane with respectto the box 1. It is obvious that this construction is absolutely necessary in a device of this type, since the 1 journal 2 is swung slightly in a vertical rounds a curve in the track.

From the foregoing description of thesembling my device, I dispose my oil pan in' the bottom of the box; I then dispose .my

plane when the coach carrying this journal roller bearing around the journal 2 and in the groove 3 and lock it in place by means of the'cotter pins 22. The pan holds onehalf of the bearing in place while the other 'half is assembled thereto. I then raise the box 1' upward-1y with respect to the journal 2 by any means, such as a jack, until the lower portion of the box nearly abuts the journal 2 so that I may then place the two sections 30 and 31 of the'sleeve '29 over the bearing in the manner heretofore described.

As will be seen in Figure 3, the hood 41 is provided vwith rece:ses 46 which permits the hood :to he slipped over the bearing and the sleeve 29, and to assume the position shown in Figures 1 and 3: The wedge 42 is then inserted between the top of the box '1 and the hood 41. The jack, which has previously lifted the box, is now removed and thus the full weight of the box is carried by the journal 2. It will be seen that the wedge 42 is provided with two depending lugs 47, which are dispo3ed adjacent the sides thereof, and are adapted to enter recesses 48 in the hood 4l (see Figures 1 and 2). It will also be seen that the lugs 47 are permitted a longitudinal movement in the recesses 48. The hood 41 is also provided with laterally projecting lugs 49 which are adapted to engage lugs 50, the latter being carried by the box 1. The lugs are already provided in the journal boxes of ordinary construction.

It willhere be noted that the hood 41 extends down into the annular groove 3 and is spaced therefrom so as to permit slight play between the journal 2 and the hood 41.

In like manner. the roller bearing is spaced slightly from the walls of the groove 43 in the hood 41. The wedge 42 is spaced away from the projection 51 carried by the box 1 and therefore permits a slight movementof the wedge with respect to the box. The wedge 42 is also adapted to move with respect to the hood 41. As heretofore stated, the bearings 28 are permitted a slight longitudinal movement between the roller chains 6 and 7. The oil pan is also adapted to move longitudinally with the sleeve. It will therefore be seen that I have provided a device in which play is permitted between the parts thereof and thus the journal 2 is permitted to move longitudinally with respect to the box 1 the required distance of,

five-eights of an inch. A slight lateral movement is also provided between the journal 2 and the side walls of the box 1 which is clearly shown in Figures 2 and 3. It will here be observed that the hood 41 and the wedge 42 do not abut the lugs 50, but are spaced a slight distance therefrom. The side walls of the pan 37 are also spaced the same distance from the walls of the box. A slight lateral movement of the box 1 with respect to the journal 2 is therefore permitted and the walls of the hood 41, the wedge 42, and the pan 37 abut the lugs 50 and the walls of'the box at th same time, thus preventing the hood 41 and the wedge 42 from being slightly rotated.

In Figure 10, I show amodified form of the roller bearing used. In this roller hearing. the parts are identical with the parts of the bearing heretofore described except that the bore: 25 and 26 are each provided with an annular recess 52 adjacent the oilter edge thereof. In the recesses are disposed a plurality of ball bearings 53. This con- Fljl'UClJiOIl provides a more frictionless roller bearing. i

It is obvious that from constant use, the journal 2 will be worn and therefore a number of the bearings 28 willnot contact with &

the journal 2 and the sleeve 29. If the wearing continues, only one of the bearings 28 will support the load at a given time. To obviate this, I provide a sleeve 60 which is substantially elliptical in shape, that is,

the two halves thereof have walls concentric with the periphery of the worn journal, these halves having their axes spaced a slight 1 distance from each other. The outer diameter of the sleeve 60 is the same as the outer diameter of the sleeve 29. This construction provides asleeve which still fits in the recesses 38 and 45 of the pan 37 and a the hood 41, respectively. As heretofore stated, the upper portion thereof is concentri: with the worn journal and therefore a plurality of bearings 28 will engage the outer surface of the bearing 2 and the .inner surface of the sleeve 60. It will be apparent that as the wearing of the journal increases,

ditferent sleeves 60, having walls fashioned so as to be concentric with the journal, can be substituted for the previous sleeve. It is common practice to use a journal which is four and one-fourth inches in diameter, when new until it has been worn down to three and seven-eighths inches in diameter. \Vith these sleeves, I canuse the journal 2 from the time it is new until it has been worn down to a diameter of three and seveneighths inches, whereupon a new journal is substituted for the old one.

In- Figure 12,1have shown another modified form of the sleeve. This sleeve 70 is semi-cylindrical in shape and has lugs 71 integral therewith which are adapted to project into recesses (not shown) in the hood 41. These lugs 71 prevent the sleeve 70 from rotating with respect to the hood 41. Since all of the load bears-against the upper portion of the sleeve, a semi-cylindrical sleeve of the shape shown in Figure 12 would be just as effective as the sleeve 29. Of course in this instance, the oil pan 37 could not be used.

In Figure 13, I show a modified form of hood. This hood 80 is composed of three sections 81, 82, and 83, whereas the hood 41 comprises but a single section. This type of hood is employed where difficulties are experienced in assembling the ordinary hood in the box 1. n

It will be apparent that the ends of the hood 41 project downwardly into the groove 3 and thus act as a double thrust, since the outer surfaces of the chains 6 and 7 rotate against the inner faces of the groove 43, and the shoulders 4 and 5 of the groove 3 rotate against the outer faces of the hood 41. The outer edges of the hood 41- are also rounded so as to permit the ready assembly of the hood in the box 1. It will also be noted that the sleeve 29 is composed of two sections, sin-re it would be impossible to insert a full length cylindrical or elliptical bearing.

sleeve into the box 1 and over the end of the journal 2.

Asheretofore stated, I provide a flexible bearing for journal boxes which permits the journal to move longitudinally and laterally with respect to the box. I also provide a device which can be readily assembled in the standard journal box without altering the construction of the journal or the box or the necessity of disassembling the journal from the box when placing my device there-' in. It should be noted that there is approximately one-sixteenth inch play between the rollersand links, and one-sixteenth inch play between the links and the hood, wherethe axle is adapted to move one-eighth inch, after which time, the thrust is taken up by the hood and wedge;

Iclaim: f

1. The combination with a railway car journal and a railway car journal box, of a roller bearingdisposed over said journal, a sleeve disposed over said bearing, said sleeve being composed of two interlocking sections, and'an oil pan disposed below said bearing said bearing, sleeve, and oil pan being assembled in said box without the necessity of removing said journal from the box, said sleeve engaging with said oil pan tb hold'the latter in place. 2. The combination with a railway car journal and a railway car journal box, of a roller bearing disposed over said journal, a sleeve disposed over said'bearing, said sleeve being composed of two interlocking sections, and an oil pan yieldingly disposed below said bearing, said sleeve engaging with said oil pan to hold the latter in place.

3. The combination with a railway car journal and a railway car journal box, of a bearing disposed over said journal, a sleeve disposed over said bearing, said sleeve be ing composed of two interlocking sections, a hood adapted to cover the upper portions of said bearing and said sleeve, a wedge disposed between said hood and the ,top of said box. and an oil pan yieldingly disposed below said bearing, said sleeve engaging with said oil pan to hold the latter in place.

4. A roller bearing comprising roller chains, each chain being composed of inner and outer links,-rods connecting said inner and outer links, means for locking-said outer links to said rods, and bearings disposed between said chains andf rotatably carried thereby the outer surfaces of said links forming a smooth continuoussurface, said links in'closing the ends of said bearings, whereby said roller bearing acts as a thrust sleeve comprising two cylinders, the

pgripheral abutting edges of said sections ing provided with a tooth and a de ression, each section having a longitudina cut therein extending from said tooth, the tooth of one section being adapted to enter the depression in the other section, whereby said sections are prevented from rotation with respect to each other and are pre-,

vented from expanding.

- 6. A roller bearing comprising a pair of roller chains having smooth continuous the sections of said roller bearing and to hold it in engagement with the groove while the other section is being secured thereto.

8. The combination with a railway car journal box and a journal therefor, said journal having an annular groove therein, of a roller bearing consisting of sections adapted to be disposed around said journal and in said groove, and an oil pan disposed beneath said journal and being ada tel to hold one of the sections of said r01 or hearing in engagement with i the journal while the other section is secured to the first named section.

9. The combination with a standard railway journal box having a downwardly extending standard lug adjacent to the open end thereofianda standard railway car journal disposedin.saidbom ofa hoodada ted to be carried by said fjou'rnal, said hood av-- in g a rnrved upper'surface, a wedge adapted to bedisposedjbetween the hood and the top of said box, said wedge-having a curved upper and lower surface, :whereby said wedgemay readily bepagwed between the. hood and the lug and be inserted into the box, siiid hood having recesses in the outer end thereof and said wedge having lugs adapted: to be received in said recesses whereby the outward thrust of the journal against the hood may be transmitted to'the wedge and through said wedge to the lug of said box. v

10. The combination with a railway car journal having an ,annular groove therein, of aroller bearing disposed in said groove, a sleeve mounted on said roller bearing, and an oil'pan disposed beneath said sleeve and having a recessa-dapted to snugly receive a portion of said sleeve;

11. The combination with a railway car journal having an annular groove therein, of a roller bearing disposed in said groove,

a sleeve mounted on said roller bearing, and an oil pan disposed beneath said sleeve and having a recess adapted to snugly receive a portion of said sleeve, said oil pan projecting in front of the end of said journal.

12. The combination with a railway car journal having an annular groove therein, ot' a roller bearing disposed in said groove, a sleeve disposed around said roller bearing, and an oil pan yieldingly held in engagement with said sleeve, said sleeve spai'ing said pan from said journal.

13. The combination with a standard railway car journal box having a downwardly extending standard lug in the front. thereof, and a standard railway car journal, of a hood carried by said journal, said hood having a curved upper surface, the ends of said hood being curved more sharply than the central portion thereof, a wedge having curved upper and lower surfaces conforming to the curveduppcr surface of saidhood, said wedge having its ends curved more sharply than the central ortion thereof, whereby said wedge may readily be -passed between the hood and the lag and be inserted in the box without the necessity of removing the journal from the box,

14. A roller bearing comprising chains composed of a plurality of inner and outer links, whose outer surfaces form one continuous plane, rollers carried by said chains,

I said chains inclosing the ends of said rollers whereby said bearing is adapted to-take up end thrusts.

15. A roller bearing comprising chains composed of a plurality of inner and outer links, whose outer surfaces form one continuous plane, each link of one chain being rigidly connected tothe corresponding link of the opposing chain whereby said bearing is adapted to take up end thrusts and bearings disposed between said chains and being carried thereby, said chains inclosing the ends of said bearings.

16. A. roller bearing comprising endless chains composed of a plurality of inner and outer links, whose outer surfaces form one continuous plane, each link of one'chain I being rigidly connected to the corresponding link of the opposing chain, rollers carried by said chains, said chains inclosing the ends of said rollers, certain 'of said outer links being removably secured to each. other,

i whereby the bearing may be separated into two or more portions and readily assembled.

HUBBARD PARKER.

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