US2327955A

US2327955A - Car truck

Info

Publication number: US2327955A
Application number: US368617A
Authority: US
Inventors: Walter H Baselt
Original assignee: American Steel Foundries
Current assignee: American Steel Foundries
Priority date: 1940-12-05
Filing date: 1940-12-05
Publication date: 1943-08-24
Anticipated expiration: 1960-08-24

Description

1943- w. H. BAsEL-r 2,327,955

CAR TRUCK Filed Dec. 5, 1940 2 Sheets-Sheet 1 INVENTOR.

WaZZerHBay'eZZ', BY

Aug. 24, 1943. w. H. BASELT 7,

' CAR TRUCK Filed Dec. 5, 1940 2 Sheets-Sheet 2 Patented Aug. .24, 1943 Walter H. Baselt, Chicago, 111., assignor to Amen:

can Steel Foundries, Chicago, 111., a'corporation of New Jersey Application December 5, 1940, Serial No. 368, 6i'7 i I 21 Claims. (Cl. 105-197 .2)

invention relates to a four wheel railway car truck and more specifically to a novel methodof resiliently maintaining the relative position of the parts thereof. p

In recent types of four wheel spring plankless trucks guide surfaces are provided on the ends of the bolster to engage guide surfaces on the side framestfor the purpose of maintaining the .proper' running position of the parts of the truck as a whole. While this type of truck has been found satisfactory, nevertheless, a certain amount of chafing or wear may occur between the guide surfaces and an arrangement to substantially eliminate all such chafing would be an improvement and this I have accomplished in my novel rem of truck.

An object of my invention is to'afford a novel rdraftlconnection between each side frame and the adjacent end of the bolster in such manner as substantially, to eliminate all chafing between the end of the bolster and the associated sideframe.

My novel arrangement comprehends a form of connection between the projecting end of the bolster and a remote point of the associated side frame with a degree of rigidity which reduces to a minimum the playofthe bolster end in the bolster opening of the side frame.

My novel connection is through resilient means jvvhich eliminatesf metalto-metal contact and greatly reduces wear of adjacent parts and the concomitant noises resulting from such wear. In my novel form of side frame, it is'practical to eliminate the column guide lugs which normally engage the outboard face of the side frame columns,but I have retained the inboard guide lugs.

In addition tothe above-mentioned features, my novel arrangement is so designed as to accommodate the quick wheel change feature which is highly desirable under present conditions where rapid wheel change is necessary'in order to accommod-ate the present rapid freight train schedules.

Specifically, my novel truck comprises a rigid rod and tube connection resiliently connectedbetween the projecting end of..the bolster and a bracket integrally formed on the outboardjface of, the side frame adjacent the journal box at one end of said frame. Such a draft rod may be associated with" each side frame at diagonally'opposite ends of the truck for-opposite sides thereof, thus assuring adequate ah-gmng means for the truck as a whole while, at the same time,

shown.

7 Describing the structure in substantially eliminating wearing along column surfaces as alreadydescribed. v

. Referring generally to the drawingsg; '1 b Figure 1 is a fragmentary top plan view of a four wheel truck structure embodying myinvention, only one-quarter ofthe truck being Figure 2 is a side elevation of, thetruck structure showninFigure 1,

v Figure 2 Ais a fragmentary sectional view through the side frame adjacent the draft rod connection substantially in the vertical plane incheated by the line AA of Figure 2. V

Figure 3 is a sectional iew through the truck arrangement shown in Figures l and 2 taken substantially in the vertical plan bisecting the truck transversely but showing in elevation the bolster and the draft rod connection.

Figure 4 is a top plan view of reduced size showing the method of application of my novel form of draft rod to opposite sides and alternate ends of the truck structure. 7 v

detail, my novel truck arrangement, as illustrated, comprises spaced truss type side frames 2' and l (Figure 4) each having a compression member 6 and a tension memberB merging at their opposite ends with integrally formed journal boxes l0, l0 and joined intermediate their"ends.by the integral spaced columns ,l2, l2 defining therewith the bolster opening l4 through which may project theladjacent end of the-transverse bolster or load carrying member I61 Each side frame may have" the usualbrake hangerbrackets I8, L8 integrally formed on the'inlo'oard face thereof ad- 'ijacent'fthe junctures of the columns 'with the compression member. On "the widened spring seat portion 20 of the tension member beneath the "bolster opening i4 may be positioned any desired form of spring group arrangement, here shown'as' comprising a bottom spring plate 22,

' atop spring plate 24 with coils or other'forms of resilientsupport diagrammatically indicatedat 26,-26and upon said spring group may thus be resiliently supported the adjacent; end of the bolster I15.

guide lugs

28, 28 for abutment against the in- The bolster is formed with inboard board edges of the guide'columns, but the usual outboard guide lugs are omitted from the bo1- ster. Instead of-using such outboar guide lugs,

I have formed on each end of the bolster projecting beyond the outboard face of the side frame a novel means-of connection to a resilient draft rod generally designated 30. The projectingend of the bolster is formed with an integral vertical plate or rib 32 in the plane bisecting the bolster longitudinally and coinciding with the plane bisecting the truck transversely, said plate I being generally circular in form with the annular flange 34 defining a slight recess formed on one face thereof. Said plate i slotted a at 36 for reception of the securing bolt 38' associated with the rod 30. The draft rod 30 comprises the rigid outer'tube 40 with the face plates42, 42 on oppositediend thereof afiordingconvenient abutment means for the

resilient pads

44, 44

which may be compressed between the plates 4-2 42 and the

washers

46, 46, said washer 46 at I one end of the draft rod bearing against the The securing bolt 38 extends througnthe rigid rod iil 1 adjacent face of the bolster plate 32.

and through the bolster plate 32; and over the projecting end of the securing bolt 38may be placed the washer 48 positioned by ine'anso'f the flange 34 and between the washer 48 and the ends of the secur iiig'bolt 38 may be drawn up to afiord any desired-degree of rigidity between the side frame 'bracket and the projecting end or the bolster. The thickness ofthe'resilie'iit pads '44, 4'4 and the resistance'to compressionbifer'ed by them are factors in fixing the rigidity df the connection. I

It will thus beseen tnat-my 'hovel arrangement {afiordsaso'mewhat resilient method of ccifinecting the bolsi'le'r a'iiol 'side frames. In this novel "arrangement, the bolster as originally assembled with the side frame maybe proper y adjiisted to t'he'exact center of thebolster-'opehing-and; as

already suggested,the desired degree-pr rigidity "maybe appliedto inaihtainthe bolstersubstahtiall'y in said central position; Any tendency'of "the truck tomisalign will be resisted by afurther compression of the'rubbe'r "pads and when the truck becomessli'ghtly misaligned, this force'will tendto restorethe'partsto normal position. 3 l

'-Io"-those skilled in the'art, itwill be readily a parent thatino'rder'to change wheels it is only necessary todisco'nnect thefdrait rod from the end of the bolsterafterwhichtheside frame may 'be removedin order'to permit wheel change. In

the dismantling ope'ration, it is ncejssar'yfof course,todisconnectboth' ends of the dfaftrod, andthe bracket on theside frame as well'as the integral securing'plate onthe nd of the bolster all Slotted par'ti'ci lariyror that operation. v

' It is lllid rstoddltl'lt 1110 not Wish to be limited by the. exact embodiment of the dvi o'e Shown which is merely by way of illustration ana net limitation -as various and other. forms of ,the

device will, ofccurse, be apparent to'tho's'e skilled in the art'winieut departing iromthe spirit of the invention orft he scope o'f'the claims,v Y

I claim:

1. 'Ina spring plankless 'q'uick'whe'el change spring groups and extending betweensaidirames retain said "site names or said openings; b '1 frames and ends site corners 'o'fZ t'he' tion between 'theeside said frames and ends projecting outboard there'- of, brackets on said side frames at diagonally opposite corners of the truck, and a resilient connection between the side frame bracket and the bolster end at each side of the truck, said 1 resilient connection comprisinga rigid bar resiliently and adjustably secured between the bracket and the bolster end, each of said bolster ends when disconnected from -rsaidgrigidbar being freely iehiovable throu glifthe adjacent bolster opening While the supporting spring group remains in assembled relationship with the asso-x c ciated side frame.

In a spring plankiess four wheel railway car truck of quick wheel change type, spacedfside framesihaving, bolster openings, spring seats beneath said. openings, spring groups positioned thereon, and atransverse load carrying'member seated on said spring groups and connecting said frames; said load carrying member having inboard guicle lugs engaging guidecolumn seated on said spring groups and cunn amg'siim frames; said load carrying rm mbe i'avm' int;

the bolster e'nfds 8ft o'DpOS' 'e 4. In a'sprihgplanklessg c1; ngeirour wheel-railwaycaiitrucasp c8111 seine est-naviing bolster @c eningssp groups and'eiitend uide liigs atrium brackets'on saidfside f in a bolster endat each side'fo'i the truck, said ient connection comprisinga rigid memberili- H tween the brac et and the poster end, resili nt ,Y .i i. 1 four wheel railway car truck, spaced side frames having bolster openings spring groups at the bottom of said openings, a bolster seatedbn said ama i yin1-Said;bolsterao nin a w hs -il abu e nb rd :ia M5 1 means interposeajbetw'een respective fenfds or "the inem er and the b 'ket and*beisterfieniig anh clamping mean rtr 'compressl *s'aitid esliient means having a bolster opening, a sprin group mf u on said frame at *-the bottom or said aming a bein ziree riremw ble d if m- Said;

posite,

g groupsippgitjf ea and aYesilie'fi't onhejcame bracket :and'ithe,

railway c r teak, awaits-site {disconnected from said. bar. while said. spring group remains in normal assembled position.

' 6. In a spring plankless four wheel railway car truck of quick wheel changetypa-spaced truss type side frames having bolsteropenings, spring groups at the bottom of said openings, a bolster seated onsaid spring groups with ends projecting the bolster end centrally within theassociated a bolster opening. v 7. In a spring plankless'quick wheelchange four wheel railway car truck, spacedl-sideframes having bolster openings, spring groups at the bottom of said openings, a bolster seated on said spring groups and extending between said frames with guide lugs abutting the inboard faces of said frames and ends projecting outboard thereof, brackets on said side frames at diagonally opposite corners of the truck, and a resilient connection between the side frame bracket and the bolster end at each side of the truck, said resilient connection comprising a rigid bar resiliently and adjustably scoured between the bracket and the bolster end.

8. In a railway car truck, spaced side frames having bolster openings, spring groups seated on i said frames at the bottom-of said openings, lateral brackets on the outboard faces of said frames at diagonally opposite corners of said truck, a bolster positioned on said spring groups and tying said frames together, and a connection between the bracket and the projecting bolster end at each side of said truck, each of said connections comprising a rigid bar resiliently connected to said bracket and said bolster end, the connection being adjustable to maintain said bolster end centrally in said opening.

9. In a spring plankless four wheel railway car truck of quick wheel change type, spaced side frames having bolster openings, a bolster extending therebetween with ends projecting through said openings, lateral brackets on the outboard faces of said frames at diagonally opposite corners of the truck, and a connection between the bracket and the projecting bolster end at each side of the truck, each of said connections comprising rigid means extending between said bracket and bolster end, resilient members interposed between the rigid means and bracket and between the rigid means and bolster end, and means for adjustably compressing said resilient members.

10. In a spring plankless four wheel railway car truck of quick wheel change type, spaced side frames having bolster openings, a bolster extending therebetween with ends projecting through said openings, lateral brackets on the outboard faces of said frames at diagonally opposite corners of the truck, and a connection between the bracket and the projecting bolster end at each side of the truck, said connection comprising a rigid member extending between the bracket and the bolster end, resilient pads interposed between the respective ends of said rigid member and the bracket and bolster end, and adjustable means for compressing said pads.

11. In a spring plankless four wheel railway car truck of quick wheel change type, spaced side frames having bolster openings, a bolster extending .therebetween with ends projecting, through said :openings, lateral brackets on the outboard :faces of said frames at diagonally opposite cor,-

ners of the truck, a connection between ,the bracket a'ndthe projecting bolster end ateach side of the truck, said connection-comprising a rigid bar interposed between thebolster end and said bracket, and means for resiliently securing said bar to said bracketand end.

12.". In a railway cartruck; a truss sideframe having a bolster opening, resilient means on said frame in said opening, abolster end supported on said means, and a rigid bar tying said end to saidframe, said bar being resiliently connected to-said end and to the outboard face of said frame, and said bar being substantially the sole means preventingdisassembly of the bolster by excessive inboard movement thereof with respect to said frame.

13. In a spring plankless four wheel railway car truck of quick wheel change type, spaced truss type side frames having bolster openings, spring groups at the bottom of said openings, a bolster seated on said spring groups with ends projecting outboard said openings, brackets on the outboard faces of said side frames at diagonally opposite corners of the truck, and rigid means resiliently connected between the bracket and bolster end at each side of the truck.

l i. In a four wheel railway car truck of quick wheel change type, spaced side frames having bolster openings, a bolster extending between said frames with ends projecting through said openings, brackets on the outboard faces of said side frames at diagonally opposite corners of the truck, draft rods connected between said brackets and the projecting ends of the bolster, respectively, and adjustable means to accommodate positioning of said bolster ends centrally within the associated bolster openings.

15. In a four wheel railway car truck of quick wheel change type, spaced side frames having bolster openings, a bolster extending between said frames with ends projecting through said openings, brackets on the outboard faces of said side frames at diagonally opposite corners of the truck, and draft rods resiliently connected between said brackets and the projecting ends of the bolster, respectively.

16. In a four wheel railway car truck of quick wheel change type, spaced side frames having bolster openings, a bolster extending between said frames with ends projecting through said openings, brackets on the outboard faces of said side frames at diagonally opposite corners of the truck, and compression bars resiliently connected between said brackets and the adjacent projecting bolster ends at respective sides of the truck.

17. In a spring plankless four wheel railway car truck of quick wheel change type, spaced side frames having bolster openings, a bolster extending therebetween with ends projecting through said openings, lateral brackets on the outboard faces of said frames at diagonally opposite corners of the truck, and a rigid bar resiliently con- I speing groups, and means tying said bIQlStEIL'tO said frames, said means comprising a rigid member resiliently connected to eaoh nend- 'of said bolster, said members being resiliently connected to the oiitboard faces of the associated side firm-nee, each of said rigid members being con-- nected to one end only'of the associated frame and constitutmg the sole means preventing .clisassembly of the bolster by excessive inboard movement thereof with respect to said frame.

v 20. In a railway car truck, a side frame having a :bolster opening, a bolster. resiliently in saidllopening, and means maintainingnaid ioolsterftlieiiein; said means consisting of guide means on the bolstenabnttingithe inboard edges ofthe frame and a "rigid member-resiliently connected tosaid holster andlto the outboard facelof frame, said rigid member being substantially the-:sblezmeans operable toprevent disassemhi-y of polsterby relative inboard movement themeotwith respect tosaid frame. a v. :21; 1111a holstena box-like structure compris "ing tonaud bottom and spaced side walls, a subvertical lug on the .end of said bolster integraiiyformed withsaidtop and bottom walls .anddispesed substantially in the plane bisecting the bolster longitudinall thereof, andLa slot in saidlug extending from the periphery to substantially the center thereof. v l r. 1 i Y WALTER .H, BASELT.