US1072721A - Car-truck. - Google Patents

Description

H. H. HEWITT.

GAR TRUCK.

APPLIGATION FILED SEPT. 5, 1911.

2 SHEETS-SHEET 1.

Patented Sept ...l ,JE

www1.

H. H. HEWITT.

CAB. TRUCK.

APPLICATION HLED SEPT. 5. 1911.

Patented s111119, 1913.

2 SHEETS-SHEET 2.

Hnnana 'Hf Haw-MT; Ior Busseto, 'NEW YORK.

Lota-,72a

specification er Letters :atteintsl Appucafitn neu september 5, 19111.- seriaru'd.- s475562:-

To all whom t may concern.'

Be it know-'n that I,''HERBRT H.HWi'iT, a citizen of the United States',` and a resident of Buffalo, county of Erie, State of New York; have invented certain t,new and useful Improvements in Car-Trucks, yof- Which VI do declare the followingto be a full, clear, and exact descriptioni The invention relates topassenger car. trucks and seeks to pro-vide an improved arrangementifor mounting the Whel` axles therein vbfv which the Wheel axles areffree to rock in vertical,f`transverse pla-nes Without straining or distorting the parts of 'the truck or the bearing vfor the car axle journals.

The invention consists iii-:the improve--l nient hereinafter set fo'rth,A illustrated fin' the accompanying drawings and 'more pare' ticularly pointed out in the appended claims.

Figure l is a plan View of a -ha'lf port-ion of the improved 'trucki'with 4parts shown in section ontlie line 1`1of Fig; 2. 3 is an enlarged-vertical section on the `lines 3-3 of Figs. l and 2.,- Fig. 4 is a verticali Section on theV line 4-4 oliFig- 3. Tig.. 5 v

is a partial elevation ofla modificatiom Fig. 6 is a section on line 6L6 ``of"'li`i,1 17,I and Fig. 7 is a sectionon line 37%7 o f- Fig.'

The truck frame is o`f usual 'construction and comprises side, beams 10 connected the end beams .11- yand-'intermediatetheir" ends, by the beams"12"and1'transoms 13S Links 14 dependingjfrbm the; transexuels* carry ,the springplank 15." lii 'car bolster 16 is arranged'between'rth transoms 13- and is supported by the'elliptical'w springs 17 lwhich in-l turn 'rest' upon 'ntl'e' plank-15] tals 21 are connected 'togetlrrand'to'the `end beams llby the' usual 'Spanner br-22.'

The trucklframe is supported from. equalizer bars. 23 throughfth'jmediimjofthe equalizer springs 24I'and theequalizer bars are carried bythewhelaxles ed to oscllate vertically" movable supf ports on v'the tru'ck "and preferably 'comprise annular spherical'-body'v'porti'ons 28 having transverse cylindrical'chambers therein for` receiving'th car'journals and bearing forU Theispheriealjournal boxes the journals.` are 'mountedk Within corre'spondi'l'igl-yA shaped concave seats formed 'in' supporting' or Hre talnlngmembers .which are guided to 'shift' vertically infthe 'pedestals 21` of 7the truekii' frame'. These supporting orjretaining'membersare' formedof separate sections that.;

are' litted"together"and' secured upon the' spherical journal boxes"andthe-supporting or retaining members' are providedl with suitable portions 'for engaging' l, 1 and 4, -the 'supporting orflrei tainingimembers comprise rectanguiarjlf'gnt and' rear sections or` blocks 29 through); bolts 30"4 openings through which the journallbox extends and with an j annular, concave spherical'seat` vvith'inwhichtthe box is 'fitted The supporting= or| retaining Patented'ept. 95 19.13.,#

divlded upon a 'vertieail pla'ne extending i centra-1135 through the spherical fiournalib'ox" and at right angles tdjtleaxisJ nali- The and Withiirwhichit is: fee't move'funilgga Versally.,

members or keepers 29"are"provided"witl1" projecting. vportions 31 at their side `:ed es for engaging theverti'cfal `guid'evva'ys"of he' truclpedest'als 21".I The' upwardly-'extendi 15mg ends. of the equalizer bars 23"-ext'end"1' verand' i'est'uponf` the supporting members"- As 'the trucki'passes over' ir-- regularities in the track; thesupportigi 'members 29 shift'verticallv'within the pe'destal4 21fand the' universal' 'mounting of' Lthe."

Wheel axles Wit-hout "throwing" any strain *upon the'pmsef thetracker thebea-rimes` The -wear .upon'the parten `journalboxes in the' supporting members!" permits the free rocking movement of-'tli andupon th barings'is thus reduced 'and there' is no"danger that 'the 'bearings' 'will1 Wear'v unevenly 'or 'be displaced' 'I lie journal' able' 'bearings for the' journals. these'tbearings of rollers-3Q in erposed betvveeuthe journal' andthe journal derj33 whichjeugages the-outerends of the rollers." Relatively' 'smalll spacing 'rnlers' 34 boxes areprovided 'withlsuitffl E'aCh" of' referab1y' jeompses a 'seriesL box,'the`latter having an 'ani' nularraceway .for the rollers With a shoul` arepreferably interposed between the bearing rollers. An annular, axially yielding guard' 35 is mounted on the journal and enages the inner ends of the journal boxy and of the rollers to 'hold the latter in place. This guard is formed of a coiled strip of spring steel. Beyond the shoulder 33 the journal box is provided with a hollow projecting portion 36 having anlv openin therein normally closedjby a plug 37. T fs hollow projecting portion is adapted toreceive lubricant and supply the same to the surfaces of the bearings. The free movement of the spherical journal boxes within the correspondingly shaped seats of the supporting members accurately maintains the bearing rollers in roper engagement with' the cylindrical sur aces betweenwhich they are-interposed and prevents the wearing, displacement and breaking of the rollers due to the great shock and strain brought upon the parts as the truck passes over irregularities of the track.

In thel form shown in Figs. 5, 6 and 7 the supporting members ,for each journal box, comprise rings or keepers 38 whichare screw-threaded into a guide block 39', the latter having an internallythreaded bore or opening to receive the `rings or keepers 38 and the rings or keepersfhaving inner conf cave vspherical faces forming a seat for the journal box. The block 39 ts between the pedestals 21 of the truck and is provided with projecting guide -iianges 40 overlapping -the same. The end of the adjacent equalizer bar 23 is supported on the guide block 39. The rings or keepers 38 are pro` vided with flanges 41 which overlap the outer and inner faces of the guide block 39 and are also provided with holes 42 to receive a Spanner or like tool. This form in some respects is preferable to the form shown in Figs. 1 to 4, inclusive, since the journal box may be morel readily removed for repairs or the like by rst removing the outer ring or keeper 38.

It is obvieuslthat the details set forth may be varied without departure from the essentials of the invention as defined in the claims.

I claim as my invention 1. In a car truck, the combination with the truck frame and pedestals, wheels and `wheel axles, of journal boxes, bearings mounted in said boxes for the journals of said wheel axles, and retaining members guided to shift vertically in the truck pedestals and held against lateral movement and wherein said journal boxes are movably mounted in a manner permitting the free transverse rocking movement of said wheel axles..

2. In a car truck, the combination with the truck frame and wheel axles, of closed journal boxes, bearings mounted in said body portions,

Vboxes for the journals of said wheel axles,

and retaining members guided to shift vertically in the truck frame and wherein said journal boxes are free to shift universally.

3. In a car truck, the combination with the truck frame and Wheel axles, of journal boxes for said wheelaxles having spherical and 'retaining members vertically guided and held against lateral movement on the truck frame and having correspondingly shaped seats wherein said journal boxes are movably mounted.

4. In a car truck, the combination with the truck frame and pedestals, wheels and wheel axles having projecting end journals, closed journal boxes having annular spherical body portions, bearings for said journals mounted in said boxes, blocks guided in said pedestals and retaining members or keepers for said journal boxes removably mounted in said blocks and having correspondingly shaped concave seats wherein said journal boxes are movably mounted. i

v5. In a car truck, the combination with the truck frame, equalizer bars and springs, wheelsand wheel axles, of lboxes for receiving the journals of said axles, and supporting members for said equalizer bars vertlcally guided and held against lateral movement on said truck frame and wherein said journal boxes are movably mounted to permit the free transverse rocking movement of said wheel axles.

6. In a car truck,- the combination with the truck frame and pedestals, equalizer bars and springs, wheel and wheel axles having projecting end journals, of closed journsdv boxes having spherical body portions, bearings for said-journals mounted in said boxes, and supporting members for said equalizer bars vertically guided in said pedestals and having spherical concave seats wherein said journal boxes are universally movable.

7. Inl a car truck, the combination with the truck frame and wheel axles, of journal boxes for said wheel axles having annular` spherical body portions, and retaining m'embers vertically guided and held against lateral movement on the truck frame and having spherical concave seats for said journal boxes, each of said retaining members comprising connected sections.

8. In a car truck, the combination with the truck frame and pedestals, wheels and wheel axles having projecting end journals, closed journal boxes having annular spherical body portions, bearings for said journals mounted in said boxes, and supporting blocks or keepers 'vertically uided insaid pedestals and having sphericz concave seats for said journal boxes, each of said keepers comprising two connected sections.

9. In a car truck, the combination with the truck frame and pedestals, equalizer bars and springs, wheels and wheel axles having projecting end journals, of closed v'ournal oxes having annular spherical bo y portions, bearings for said journals mounted in said boxes, supporting blocks for said equalizer bars vertically guided and held .against lateral movement iii said pedestals and comprising connected sections having spherical concave seats wherein said journal i boxes are universally movable and free to creep. i

10. In'a car truck the combination with a truck frame and pedestals, wheels and wheel axles havin projecting end journals, of bearing boxes r said journals, supporting blocks verticallyaguided and held against lateral movement in saidvpedestals and wherein said journal boxes are movably mounted to 'permit the free transverse rocking movement ofvsaidjlwheel axles, and

springs interposed betweeiilV said supporting blocks-andthe truckframe.

1'1.' In a car truck, the combination with the wheels and wheel axles having projecting .-end journals, of journal boxes for receivin'g said end journals,v and bearing roll` srs linterposed between said journals and said boxes, said truck having vertically movable supports whereon said boxes are movablym'ounted to permit the free transverse rockin movement of said wheel axles.

12. car truck provided with two `or Ymorewlieel axles having projecting end journals and boxes having bearing. rollers for said j ournals,\the boxes at the opposite ends of each axle being mounted on thetruck to shift independently in vertical direction and to oscillate with the axle, whereby said axles are free to rock independently in transverse direction in assing over irregularities inthe track, Vw ile said bearing rollers areat all times maintained in roper axial alinei'nent with said axle journals.

v13. In a car truck, the combination with the VWheels and wheel axles having projectf ing Aendjournals, of journal boxes, bearin rollers interposed between said journals an said boxes, and vertically movable retaining of journal boxes having spherical body portions, bearing rollers interposed between said journals and said boxes,'and supporting members or keepers vertically ided in said pedestals and having spherica concavel seats wherein saidajournal boxes are free to shift universally. v

16. In a car truck, the combination with the truck frame, and wheel axles having prosaid journals having annular spherical body portions and closed, hollow outer ends for lreceiving lubricant, and supporting members or keepers vertically guided inthe truck frame and having spherical concave seats wherein said journaly boxes are movably mounted.

17. In a car truck, the combination with the truck frame and edestals, equalizer bars and springs, whee s and wheel axles having projecting end journals, of .supporting blocks vertically guided and held against L lateral movement in said pedestals and whereon the ends of said equalizer bars rest, and bearing boxes for said journals movably-mounted in said supporting blocks to shift universally and rmit the free transverse rocking movement of'said wheel axles.

HERBERT H. Hiiwi'ii;

Witnesses:

` CAROLYN WEBER,

ELuANon HAGnNow.

.70 jecting end journals, of bearing boxes for Y

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