US2418398A

US2418398A - Journal arrangement

Info

Publication number: US2418398A
Application number: US542543A
Authority: US
Inventors: Robert B Cottrell
Original assignee: American Steel Foundries
Current assignee: American Steel Foundries
Priority date: 1944-06-28
Filing date: 1944-06-28
Publication date: 1947-04-01
Anticipated expiration: 1964-04-01

Description

April 1, 19 7- R. B. COTTRELL JOURNAL ARRANGEMENT Filed Jung 28, 1944 2 Sheets-Sheet l INVENTOR. 0 w

BY I

April 11, 1947.

R. B. COTTRELL. 18,398 JOURNAL ARRANGEMENT Filed June 28, 1944 2' Sheets-Sheet 2 IN V EN TOR. fiz cw @w Patented Apr. 1, 1947- OFFICE JOURNAL ARRANGEMENT Robert B. Cottrell, Chicago, Ill., assignor to American Steel Foundries, Chicago, 111., a corporation of New Jersey Application June 28, 1944, Serial No. 542,543 I 11 Claims.

a railway car truck wherein the side frame is provided.- with a spherical surface seated upon a complementary spherical surface atop the journal box, the side frame and journal box being aflorded novel means for limiting relative angularity between the box and the frame.

Another object-of my invention is to provide in ajournal box mounting such as above described, a novel tiebar or securing bracket underlying the box and secured to the frame, said bracket havin a spherical surface slightly spaced from an adjacent spherical surface of the journal box to accommodate the above-mentioned angularity between the box and the frame. The bracket and the box are also provided with complemen-- tary abutment faces for limiting vertical angling.

In the drawings,

Figure 1 is a sectional view through a side frame and journal box embodying my invention, said view being taken approximately in the transverse vertical plane indicated by the line l-l of Figure 2.

Figure'2 is a fragmentary side elevation of my novel side frame construction with the journal box removed from its associated opening.

Figure 3 is a plan view of the side frame securing bracket shown in Figure 2 and illustrating the connection of said bracket to the side frame.

Figure 4 is a sectional view taken in the horizontal plane indicated by the line 4-4 of Figure 1.

Figures 5 and 6 illustrate a modification .of my invention, Figure 5 being a fragmentary sectional view comparable to Figure 1 and taken in the vertical plane indicated by the line 5-5 of Figure Figure 6 is a fragmentary side elevation of the side frame shown in Figure 5 with the journal box removed therefrom. I I Describing my invention in detail and-referring first to the embodiment thereof illustrated in Figures 1 to 4 inclusive, the side frame comprised the diagona1 tension and compression members 2 and 4 defining the window opening 8 and merging at their ends in a box section above the pedestal or Journalbox opening ill defined by the side frame and the removable bracket or tie bar 5 The side frame above the opening l0, as best seen in Figure 1, is of box section comprising the top and bottomwebs l4 and i6 and the inboard and outboard walls l8 and 20, the top wall l4 being cored away at 22 (Figure 2)' to afford an opening for the application and removal of the nut 24 threaded on the securing bolt 26 which extends through aligned bosses 28 and 30 formed respectively on the bracket l2 and on the side frame between the inboard and outboard walls l8 and 20. A nut 32 is also threaded on the lower end of thebolt 26. The bracket I2 is also secured to the side frame by another bolt 34 which extends through aligned bosses 36and 38 formed respectively on the bracket 12 and side 'frame gusset 40. Nuts" and 44 are threaded on opposite ends of the bolt 34.

The bottom wall I6 is formed'on the bot-tom thereof with a spherical surface 46 struckon radius A (Figure 1) from the center of curveture B, said'surface 46 being defined by the outboard and inboard converging abutment sur-. faces 48 and 50 adapted for abutment respectively with the outboard and inboard surfaces 52 and 54 of the Journal box generally designat- 80 ed 56, said surfaces 52 and 54 defining the outboard -and inboard edges of a spherical surface 51 on the top of the journal box complementary to the before-mentioned spherical surface 46 and affording a seat therefor. It may be noted that the surface 48 and the adjacent surface 52 are disposed in planes 0 and D converging at a point on a circle E, struck from the point B. By means of this construction, the planes C and D are both'intcrsecting at a common point on a radius of the circle E, thus -insuring flat face contact between the surfaces 48 and 52 to'limit relative vertical angling of the side frame and journal box, as will be clearly apparent to those skilled in the art. It willalso be understood that the surfaces 50 and 54 are similarly disposed in converging. planes intersecting at a common point on the circle E.

Itmay be noted at this point that the tiebar w I 2 comprises a spherical surface 58 struck from the radius F, said surface being concentric with and slightly spaced from a complementary spherical surface 60 formed on the bottom of the journal box 56, thus accommodating "the above-mentioned angling between the side frame and thebox.

- ll The surface 60 is defined at its inboard and outboard margins by the diagonal converging faces 62 and 64 formed and arrangedfor cooperation with inboard and outboard diagonal converging faces 66 and 68'formed on the tie bar l2, and it will be understood that the surface 62- and the adjacent face 66 are formed respectively in converging planes 6- and H intersecting at a common point on the circle E, thus affording fiat face contact therebetween simultaneously with the contact between the surfaces 48 and in planes intersecting at a common point on the circle E, whereby they are afforded fiat face engagement therebetween simultaneously with the engagement between thesurfaces 60 and 54 to limit vertical angling between the box and theframe inthe other direction,

The outboard wall 20 is formed with a hollow lug 18 received within a bracket I2, U-shaped in horizontal cross-section with the parallel walls of said -brackethaving the inner surfaces thereof converging toward'the lug 10, as seen in Figure 4, and it will be understood that the parallel surfaces on the lug 10 have fiat face engagement .embodiment, by roller bearing units Y 52 to limit vertical angling between the box and the frame in one direction. Similarly, the sur-- face 64 and the adjacent face 68 are disposed.

arcuately formed to accommodate limited Vera.

tical angling of thesid'e framelongitudinally thereof, and said opening is somewhat triangular in vertical cross-section, as best seen in Figure 3 5, to accommodate relative vertical angling between the wheel and axle assembly ..228.'and the side frame transversely thereof, as best seen' in Figure '5. a

It will be understood that the arrangement 11 lustrated in Figures 5 and 6 is substantially identical to the previously described embodiment,

except for the elimination of the tie bar and for the particular. connection between the side frame and journal box afforded .by the bolt 2361:

i and the lug 232, as above described; and it may with the converging surfaces of the bracket 12 to limit horizontal angling between the side frame I and journal box in opposite directions. The axle [4 of the wheel and axle assembly fragmentarily indicated at I6 is received within the journal box 68 and is mounted therewithin by means of inboard and outboard roller bearing units, the inboard bearing unit consisting of an outer race 18 fitted within the box against a shoulder 80 therein, and an inner race 82 carried by the axle 14. Roller bearings 84, 84' are disposed between the

races

18 and 82. The outboard roller bearing unit comprises an outer race 86 fitted within the Journal box against a shoulder 88 therein and an inner race 88 sleeved on the axle l4, roller bearings 82,

for positioning the races Hand 82 and the sleeve 84.

' A cover plate 98 is secured as at I88, I88 to the outboard face of the journal box, and an inboard cover plate 1021s secured as at I04, I84 to the inboard side of the box, said plate I82 being grooved at 186, I06 and defining with the shrink collar I08 9.: labyrinthine passage M0 to prevent the escape of oil from within the journal box.

be noted that because of the'elimination of the tie bar, the side frame is provided beneath the spherical surface 2I8 with the spaced depending pedestal lugs or

jaws

242, 242 adapted tov ern- 'brace the journal box therebetween to prevent accidental disassembly thereof with respect to the side frame.

It is to be understood that I do not wish to be limited by the exact embodiments of the device shown which are merely by way of illustration and not limitation asvarious 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.

Iclaimz a, v 1. In a railway car truck, a side frame comprising a journal box opening partly defined by a removable tie barsecured ;to said frame, a' wheel and axle assembly comprising a journal box received within said opening and having a surface around the axis of said assembly formed as a segment of a sphere, said surface affording a seat for a complementary surface of said frame, said tie bar having a spherical surface slightly spaced from but concentric with said first-mentioned surface, abutment surfaces on the outboard side of said frame and. adjacent por- Referring now to the modification of my invention illustrated in Figures 5 and 6, the side frame comprises the diagonal tension '

andcom pression members

202 and 204 defining the window opening 206' and merging at their end in a box-section portion best illustrated in Fi ure 5,

which shows the top and bottom webs 288 and 2ll of the side frame, as well as the inboard andoutboard walls M2 and 214 thereof, said bottom wall being formed with a spherical surface 218 as in the previously described embodiment.

The journal box is provided on the top thereof 2 with a spherical surface 2J8 (Figure 5) affording a seat for the before-mentioned surface 2l6 which is defined at its. inboard and outboard edges by the converging

abutment surfaces

228 and 222 for cooperation respectively with

complementary abutment surfaces

224 and 228 of the Journal box, as in the previously described em-- tion of said box respectively, formed and ar-- ranged for flat face engagement simultaneously with the engagement of similar surfaces on the inboard side of said bar and the adjacentportion of said box, abutment surfaces on the inboard side of said frame and the adjacent por-, tion of said box respectively, formed andarranged for fiat face engagement simultaneously with the engagement of similar surfaces Ion the outboard.

side of said bar and the adjacent portion of said box to limit relative vertical angling between the side frame and journal box, and means loose interlocking said box and said frame, said means comprising a lug "on the outboard side of said frame received within. and spaced from a U- section bracket atop said box, said bracket having converging surfaces on the walls ,thereof on opposite sides of said lug for flat face engagement with the adjacentsurfaces of said lug to: limit relative horizontallangling betweensald frame and box in. opposite directions on said I spherical surfaces.

2. In a railway car truck, a wheel and axle assembly, a journal box mounted thereon and comprising a spherical top surface defined at, itsinboard and outboard edges. with diagonal converging abutment surfaces, 9. side frame comprising a complementary spherical surface'seated .on

said first-mentioned surface and defined by inboard and outboard converging abutment'face's,

each of said abutment'surfaces'and the adjacent abutment face lying in respective planes intersecting at a common point on an arc struck from thecenter of curvature of said spherical surfaces; and a securing bracket removably connected to said frame and underlying said box,

v said bracket and said box presenting slightly spaced spherical surfaces struck from said center of curvature, each of said last-mentioned surfaces being defined at its inboard'and outboard edges by converging plane abutment faces, the face on each side of said bracket being formed and arranged for engagement with the adjacent face on said box simultaneously with the en- E sement of one side frameabut'ment' surface with the adjacent abutment face for limiting relative vertical angling between said frame and said box, and a lug on the outboard side of said frame received within and spaced from a U-section bracket atop said box, said bracket having converging surfaces on the walls thereof ,on opposite sides of said lug for flat face engagement her, abutment surfaces on the ranged for engagement simultaneously with the engagement of similar-surfaces on the outboard side of said bar and the adjacent portion of said box member to limit relative vertical. angling between said members, and means loosely interlocking said members, said means comprising a lug on one of said members outboard said frame member received within and spaced from a U- section bracket on the other member, said at'its inboard and outboard edges by plane diagonal abutment surfaces, a side frame member comprising a complementary sphericalisurface seated on said first-mentioned surface and defined by inboard and outboard plane converging abutment faces,each of said abutment surfaces and the adjacent abutment face being adapted with the adjacent surfaces of said lug to limit relative horizontal angling between said frameand box in opposite directions on said spherical surfaces.

3. In a railway car truck, a wheel and axle assembly, a journal box carried thereby and comprising a spherical top surface defined at its inboard and outboard edges by plane diagonal converging abutment surfaces, 9. side frame comprising a complementary spherical surface seated.

on said first-mentioned surface and defined by inboard and outboard plane converging abutment faces, each of said abutment surfaces and the adjacent abutment face being adapted for flat,

face'engagement to limit relative vertical angling between the side frame and journal box and .being disposed in"respective planes intersecting I at a common point on an arc struck from the center of curvature of said spherical surfaces, and

a a lug on said frame received within and spaced from a U-section bracket on the top of said box,

said lug being afforded limited movement within i said bracket and being engageable therewith for Y limiting relative; horizontal movement between the side frame and the surfaces.

4. In a railway car box on said spherical truck, a side frame member comprising an-opening partly defined by a re-- movable tie has secured to said'frame member...

awheel and axle assembly comprising a; 'journal"'- bog and saidgf-rame, complementary diagonal for engagement to limit relative vertical angling between said members and being disposed in respective planes intersecting at a common point on an arcstruck from the center of curvature of said spherical surface, and a lug on one of said members received within and spaced from a U.-section bracket on the other member, said lug being afi'orded limited movement within said bracket and being engageable therewith for llmiting relative horizontal movement between said members on said spherical surfaces.

6. In a. railway car truck, a wheel and axle assembly including a journal box member with a spherical surface atop thereof, a side frame member with a complementary surface seated on said first-mentioned surface, and means limiting relative movement between said members, said means including a lug on one of said members received within and-spaced from a bracket on the other member. said bracket having surfaces converging toward surfaces on said lug for fiat face engagement therewith to limit relative horizontal angling therebetween on said spherical surfaces said lug and bracket being disposed exteriorly of respective members at points remote having a surface around the axis of said assembly formed as a segment of a sphere, said surface affording a seat for a complementary surface of said frame member, said tie bar having a from said surfaces '7. In a railwaycar truck, a wheel and axle assembly includinga journal box, a roller bearing unit therein, and an axle mounted in said unit, a side frame comprising a spherical surface seated on-a complementarysphericalsurface atop said box, said surfaces affording relative angling in every direction between said abutment surfacesbn said box and said frame spherical surface slightly spaced from but concentric with said first-mentioned surface, abutment surfaces on the outboard side of said frame member and the adjacent portion'of said boxinember respectively formed and arranged for engagement simultaneously with the engagement of similar surfaces on the inboard side of said bar and theacljacent portion of said box memsaid spherical surfaces and a'dapted to limit ver-. 'tical angling between ,the box and frame, and

a lugon said frame projecting laterally therefrom and received within a. bracket atop said box for loosely interlocking said frame therewith,

said bracket having the portions thereof on opposite sides of said lug provided with. surfaces converging toward said lug for flat face engagement therewith to limit relative horizontal angling of said box and said frame.

8.111 a railway car truck, a side frame comtop surface defined zontal plane above j .prisinga journal box openingfpartly deilniedby aremovable tie bar secured to-said frame; a-journal box received-within said opening and having a surface therearound1deiin e d as af fs'egmentof asphere, said surface affording a seat forte, com-' plementary spherical surfacef said frame, said tie bar having a spherical surface slightly spaced from, but concentric withlsaidfirst -mentioned surface, and means on said box' and frame for limiting relative angling therebetween; said @a iiaeoa plementary surface seated on said first-mentioned surface, and means limiting relative move ment between.

including a lug onthe outboard side of said 7 frame loosely received within a bracket atop said box and adapted to have flat face engagement spherical surfaces.

means comprising spaced walls atop said'box receiving therebetween a projection onJ'one side of said frame in spaced relation thereto and engageable therewith to limit relative horizontal angling between said frame and box.

' 9. In a railway car truck, a side frame com prising a journal box opening partly defined by a removable tie bar secured to. said frame, a

journal box received within. said opening and said box and said frame on said spherical surfaces.

10. In a railway car truck, a wheel and axle assembly including a journal box with a spherical surface atop thereof, a side frame with a comtherewith for limiting relative horizontal angling between said box and said frame on said 11. In a railway car truck, a wheel and axle assembly including a journal box member with a spherical surface atop thereof, a side frame member with a complementary surface seated on-said first-mentioned surface, and meanslimiting relative movement between said members, said means including a vertical projection on one of said members received between and spaced from vertical walls on the other member, said walls having engagement with said projection to limit relative horizontal angling of said members i on said spherical surfaces, said projections and walls extending exteriorly of said members in a horizontal plane above said surfaces.

ROBERT B. CO'I'IRELL.

, REFERENCES I The followlng references are of record in the file of this patent:

UNITED STATEBPA'I'ENTS Date Number Name 1,010,034 Floyd Nov. 28, 1911 1,642,965 McCullough Sept. 20, 1927 895,843 Cook et al Aug. 11, 1908 1,290,511 Cite Jan. "I, 1919 1,742,860 Horger Jan. I, 1930 1,865,589 Richards July 5-, 1932 Kutter Aug. 12, 1913 the box and frame, said means