US1241688A - Car-truck. - Google Patents

Description

E. vW. WEBB 6I C. S. WALTON.

CAR TRUCK.

APPLICATION FILED SEPT. 9. Isla.

Patented Oct. 2, 1917.

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` "Mlm UNITED STATES PATENT OFFICE.

EDWIN W. WEBB AND CHARLES S. WALTON, OF CHICAGO, ILLINOIS, ASSIGNORS TO STANDARD CAR TRUCK COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION 0F NEW JERSEY.

CAR-TRUCK. .i

Specification of Letters Patent.

`Patented Oct. 2, 1917.

Application led September 9, 1916. Serial No. 119,240.

To all flu/1,0m it may concern.'

Be it known that we, EDWIN W. WEBB and CHARLES S. WALTON, citizens of the United States, residing at Chicago, in the countyv of Cook and State of Illinois, certain new and useful Improvements in Car-Trucks; and we do hereby declare the following to b e a full, clear, and exact description of the invention, such as will enable others skilled in the art to which 1t appertains to make and use the same. l Our` invention relates to improvements in car trucks, and particularly to six wheeled equalizing car trucks of the type disclosed and broadly claimed in our co-pending application, `entitled Car trucks, filed August 12, 1916, under S. N. 114,556. l

To the above end, generally stated, the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings, Figui-e 1 is a view, principally in side elevation, of the improved car truck with some parts shown in vertical section and some parts diagrammatically illustrated by means of broken lines;

Fig. 2 is a fragmentary vertical section taken on the line 2-2 o Fig. 1;

Fig 3 is a fragmentary vertical section taken on the line 3 3- of Fig. 1, with some parts removed; and j Fig. 4 is a fragmentary plan view of the improved car truck.

Each side frame of the improved car truck is indicated by the numeral 1 and, as shown, is of cast steel with a general cross section in the form of a box, the walls of which are suitably reinforced. The upper sections of two-part `depending pedestals 2 are cast integral with the side frames 1 and the lower sections thereof are detachably, but rigidly secured to said upper sections by nut-equipped bolts 3. The lower extremities of each pair of pedestals 2 are rigidly connected by a tie bar 1l. i These tie bars 4; are detachably secured to the pedestals 2 by nut-equipped ybolts 5 and the ends thereof are bent upward and engage the outer faces of the pedestals to prevent lateral separation thereof. Chafing plates 6 extend substanhave invented termediate pair of pedestals 2, and a spring seat 8 is formed in the side frame 1, directly below each bolster opening 7. The walls of the side frame 1, between each pair of pedestals 2, are extended downward to a'll'ord relatively deep pairs of flanges 9 at the ends of the spring seats 8. I'loi'izontally spaced pairs of spacing tliiinbles and bolts 10 connect each pair of flanges 9 at their lower extremities. In each end of the side frame 1, is a transverse segmental seat l1 formed in the top member of the side frame for a rocking abutment. Over each pair of pedestals 2, is formed in the side frame 1 a horizontally elongated opening 12, the purpose of which will presently appear.y

The car truck wheels and their axles are indicated by the numeral 13. and the journal boxes therefor are indicated as entireties by the numeral 14, with the exception of rectangular bearing seats 15 formed in the tops thereof. The journal boxes 14 may be of any desired form, are mounted between the pedestals 2, and have on their sides the customary pedestal guides.

The side frames 1 are rigidly connected by two pairs of angle tie bars 16 having their horizontal flanges turned toward each other and the ends thereof rest on brackets 17 to which they are riveted. These brackets 17 are cast integral with the inner flanges 9 and project inward therefrom. The vertical flanges of each pair of tie bars 16 are turned upward and their horizontal flanges are edgewise spaced apart to permit the escape of dust and dirt therebetween.

The bolster of the improved car truck is of the double type and, as shown, is made up of a center beam 18, outer beams 19 and tie I-beam 20. The bolster beams 19 are located directly over each pair of tie bars 16, extend between the `verticalflanges thereof and have their ends inserted through the bolster opening` 7. Roller contours 21 are formed on the under faces of the bolster beams 19 and rest on lateral motion rollers 22. These rollers 22. in turn, are mounted in roller contours 23 formed in roller bases 24, seated on the bottoms of the bolster openings 7. On the sides of the bolster bea-ms 19, are stop lugs 25 arranged to engage the inner faces of the side frames l to limitthe lateral movement of the bolster. Thebe-ams 19 are rigidly connected` and held in parallel arrangement by the tie bars 20,

the ends of which rest upon said beams 19.' The center beain18` is supported by. the tie beams 20 and itsv and are bolted thereto.

ends rest on the horizontal flanges of said tie beams and are riveted to the webs thereof.v A lowercenter bearing. 26 isl cast integral with the center' beam 18. l

TNliile vthe bolster yshown is made up of several members rigidly connected by bolts andV rivets, it is,`of course, understood that the same maybe cast as an entirety. Side bearing plates 27 are riveted to the tie beams 20 in line with the center beam lSand prevent excessive rocking of the car. Y lnt'erinediately fulcrumed on each journal box 14,'i`s an equali'zing lever 28 having on its under side a fulcruin lug ,29 mounted in the bearing seat l5 of the respective journal box la.. Thes'eequalizing levers 28 extend transverselyof 'the' journal boxes 14, are located within the side frames 1 and have in l each of'ktheir ends an elongated vertical-ly extended aperture 80. Rocking abutinents Slare mounted in the seat ll and are provided" with pairs of oppositely extended fulcrum lugs 32 mounted in notches 33 formed in the outer endsof the outer equalizing levers :28. `lDepending lugs 3a on the abutinents' 31 extend into the underlying apertures 30 in thel outer ends of the outer equalizing levers 28 and hold said abutments in position..

The side frames l are supported on heavy semi-elliptical springs 35 which, in turn, are supported by links 36 from the inner ends ofthe outer equalizing levers 28 and the intermediate equalizing levers 28. The links 36 are flat and are extended through the apertures 30 in the inner ends of the outer equalizing levers 2S and the intermediate equalizing levers 28..- Fulcrum lugs in the form of keys, are extended transversely through the links 36 at the ends thereof. The upper fulcrum lugs 37 are seated in notches 38 formed in the upper surfaces of the equalizing levers 28, and support the links BG'therefrom'.' The lower. fulcrum lugs 37 are seated invnotches') 'formed inthe under sides of the thickened ends of the lowermost leaves ofthe springs 35 and. support saidy springs thereon. The links 36 are l loosely extended through the apertures 30 toipermitft'he required iiexibility of the leversk 28, abutinents 81', springs 35, and links 361 The intermediate portionsof theisprings 35 are mounted in the' seatsfS'between the flanges 9 and are Vlocated above the' thimble's andbolts Obviously, these' tliimble's'an'd boltsV l()- rigidly connect the. flanges and reinforcethe same. The flanges 9 liold the' springs 35 against lateral and horizontal angular movements in the seats 8 and the ends-of their-lower leaves arev bifurcated/ to Vreceive the links 36;

Brake hangers 4:0 are riveted tothe inner sides of the `side frames l. By reference to Fig. 3, it will be noted that` the Lipper members ofthe pedestals 2 and the-upper ends of the chafing plates are notched toaford clearancefor the equalizing levers 28. In

` assembling the improved car truck, the openings 12 in the side frames `1 make it vextremely simple `and easy' to position the equalizingv levers 28 on the journal boxes 14, connect the vlinks 36 to the equal-i'zin'g levers 28 and also to position the abutments 31.

1 will be noted that the pedestalsQ, equalizing levers 28', springs 35, linksl 36, are all of one pattern, respectively, making'l the construction simple and easy to replace parts, in ease oflwear or breakage;

F rom the above description, it is evident that the load of the car is directly on the doublevbolster and it, in turn, bears ldirectly on the side frames through the lateral movtion rollers. lThe weight onl the side frames is applied directly over the several spr-ings 35, which carry said side frames 'froid the journal boxes through the equalizing levers and links. By the construction and`arrange- 9 nient of parts just referred to', eachwhe'el is allowed to move' vertically, indejpen'dent of the others thereof. l A The'jcoinpactness of the above.V described invention is such that an extra pair* of wheels is added, without' increasing the 'length of the truck' over a four Wheeled truck, thereby increasing the capacity ofthe truck with no additionalfweight placed on a given length' of roadbed;

lWhat we claim is l. In a car truck, the combinationy with side frames, a bolster, anti-friction"bearing devices supporting the bolster from the side frames and journal boxes, of equalizers, and leaf springs carried byI the .equalizers and supporting the side frames under the bolster. n

2. In a car truck, the combination with side frames and jfournal" boxes, of eefual'izing levers interinediately fulcrumed on the jo'urnal boxes, abutments between the outer'ends ofthe equali'zing levers andfside frames,

leaf springs carried by the inner endsy ofV Ail (l the side iframes over the springs, and a bolster carried by the lateral motion bearing devices.

4. In a car truck, the combination with side frames, a bolster' and journal boxes, of equalizing levers intermediately fulcrumed on the journal boxes, rocking abutments between the outer ends oit' the equalizing levers and side frames, and springs carried by the inner ends of the equalizing levers and supporting the side frames under the bolster.

5. In a ear truck, the combination with side iframes having bolster openings and pairs of laterally spaced flanges therebelow, a bolster having its ends extending into the bolster openings and spring seats under the bolster and between said flanges, of equalizing levers intermediately fulerumed on the journal boxes, abutments between the outer ends of the equalizing levers and side frames, and leaf springs mounted in said seats and having their ends supported 'from the equalizing levers.

6. In a car truck, the combination with side frames having bolster openings and pairs of laterally spaced flanges therebelow, a bolster having its ends extending into the bolster openings and spring seats under the bolster and between said flanges, of equalizing levers intermediately fulerumed on the journal boxes, abutments between the outer ends of the equalizing levers and side frames, leaf springs mounted in said seats and having their ends supported from the equalizing levers, and spacing devices connecting the pairs of flanges below the springs.

7. In a ear truck, the combination with side frames and journal boxes, said side 'frames having bolster openings and depending flanges, spring seats between said flanges, of equalizing levers intermediately fulerumed on the journal boxes, abutments between the outer ends of the equalizing levers and side frames, and leaf springs mounted in said seats and having their ends supported from the equalizing levers.

8. In a ear truck, the combination with side frames and journal boxes, said side frames having bolster openings and depending flanges, spring seats between said flanges, of equalizing levers intermediately fulerumed on the journal boxes, abutments between the outer ends of the equalizing levers and side frames, leaf springs mounted in said seats and having their ends supported `from the equalizing levers, and lateral motion bearing devices in the bolster openings.

9. In a six Wheeled car truck, the combination with side frames, journal boxes and a double bolster, of equalizing levers intermediately fulerumed on the journal boxes, abutments between the outer ends of the outer equalizing levers and side frames, and leaf springs supported from the inner ends of the outer equalizing levers and the intermediate equalizing levers and supporting the side frames directly under the double bolster.

10. In a six wheeled ear truck, the combination with journal boxes and a double bolster, of equalizing levers intermediately fulerumed on the journal boxes, rocking abutments between the outer ends of the outer equalizing levers and side frames, and leaf springs supported from the inner ends of the outer equalizing levers and the intermediate equalizing levers and supporting the side frames directly under the double bolster.

In testimony whereof we aliix our signatures in presence oi two witnesses.

EDWIN IV. WEBB. CHARLES S. VALTON. lVitnesses Lun W. BARBER, IIARmE'rr E. ORR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, IJ. C.

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