US822676A - Cast-steel car-truck. - Google Patents

Description

PATBNTED JUNE 5, 1906.

LIPSGHUTZ. CAST STEEL CAR TRUCK.

APPLICATION FILED FEB. 12, 1906.

2 SHEETS-SHEET l.

witnesses PATENTED JUNE 2 SHEETS-SHEET 2.

A. LIPSCHUTZ. AST STEEL GAR TRUCK.

APPLIOATION FILED r2342, 1906,

' UNITED s'r TEs PATENT on ARTHUR LIPSCHUTZ, OF CHICAGO, ILLIN 01S ASSIGNOR OF HERBERT W. WOLFF, OF T. LOUIS, MISSOURI.

CAST-STEEL CAR-TRUCK,

Specification of Letters Patent.-

Pat'ented June 5, 1906.

. Ap licati n fi1 d February 12, 1906- Serial No. 300,704.

To all whom it may concern:

I Be it known that I, ARTHUR LIPSCHUTZ, a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Im rovements in Figure 1 is a side elevation of a car-truck embodying my lnvention. Fig. 2 is a plan beam or side frame.

bolster is supported b upon the sideframes o the trucks, as disview of one-half of the car-truck, the truck bolster having been removed to disclose the spring-seat, which is formed upon the truck- Fig, 3 is an end elevation of the truck, one-half thereof being in vertical section on the lines 3 3 of Fig. 1;

' and Fig. 4 is a detailed side elevation of my novel truck-beam.

This invention relates to railway-trucks composed of metal, and has special reference to rovements in trucks of that class wherein the journal-boxes are rigidl secured inthe truck-frame and wherein t e trucksprings provided tlnguished from those trucks wherein the bolster is supported by transverse transoms. In a truck 0 this general class the truck-bol ster is usually quite as long as the car-axles, and its ends extend through or beyond the side frames. The springs for sup orting the bolster are usually arranged in t planes of the said frames.

My invention relates particularly to provements in the side frames of freight-car trucks though it is not confined to such trucks.

The object ofm invention, is to provide a car-truck which s all be of less weight and be com osed of fewer parts.

Another object of my invention is to so improve the construction of the side frames of car-trucks as to provide ample spaces for the bolster-springs and also to permit the easy placing and removal of the bolster Without requiring the side frames to be taken down or dismembered.

e vertical The particular object of the invention is to provide a car-truck in which the usual transoms shall be-dis ensed with .andin which single-part truckearns, one on-each side of the truck, shall take the place of the archbars, truck-columns, spring-seats, and minor associated parts commonly used to connect the journal-boxes and support the ends-of the truck-bolster.

ONE-HALF TO A further and particular object of the invention isto provide a car-truck which shall have its cliief members made of cast-steel.

A further object of my invention is to'provide a single-piece, strong, simple, and cheap side beam or frame for car-trucks, and, further, to provide a side beam of simple form specially adapted for low trucks. I

7 his invention is related to the cast-steel car-truckwhich is shown and described in Letters Patent No. 786,575, granted to me April 4,. 1905.

' Broadly defined, myinvention consists in a car-truck having side beams or frames that rest upon the tops of the journal-boxes and which are characterized byvertical recesses .or spring-pockets and by bolster guides-or columns, which latter project upwardly from the tops of the beams.

Further and particularly my invention consists in a novel side beam for car-trucks, said beam having bolster-guides on its top and being provided with an expanded or widened top flange and saidflan e bein in, terrupted at the middle of the eam y a spring pocket or recess the bottom of which is below said flan e. 'J' 3 v 'I generally ma e my novel side-members or beams of cast-steel, and my invention takes its name from this fact. a I desire, however, to state that though I refer that each side member of my truck s all be a single castingsaid members may be constructed of one or more pieces of rolled, pressed, or cast metal, and Iv do not limit my Invention to a car-truck in which the chief members consist of single pieces of cast-metal or to the particular constructionshereinshown and described, but refer to the appended'claims as pointing out and defim'n my invention.

Referring to the drawln'gsfor a better unmy invention, 1 1 represent the axles, 2 2 the derstanding of the preferred embodiment of Wheels, and 3 3 the journal or oil boxes, of the truck. The journalboxes upon each side of the truck are joined by a truck-beam 4, supplemented by a tie-bar 5. The novel features of my invention are rou ed in and about these side beams, whic 1 ta e the place of the more complicated arch-bar frames in ordinary use. The springs 6 rest upon the side beams, and the bolster7 in turn rests upon the springs 6,- hav'ing its ends guided by column. parts on said side beams.

The bolster is mainly composed of a Wide flat top and depending truss-shaped webs. The ends of the bolster comprise open-bottomed boxes or spring-seats 7 to receive the-upper ends of the springs 6 6. The characteristic cross-section of the bolster is an inverted-U shape with front and back webs of greatest depth at the middle of the bolster. At its ends the bolster is provided'with vertical ribs or shoulders 8 to cooperate with the bolster columns or guides upon the side beams. In place of the common spring-plank I usually employ the parallel angle-bars 9, which extend between the side beams of the truck.

It will be noted that the ends of the bolsterv extend through and beyond the side beams or frames of the truckand that the springcenters-th'at is, the centers of the groups of springs-lie substantially in the middle vertical planes of respective side beams, the arrangement being such that the pressure of the bolster is directly downward u on said side beams Without side or lateral t rust.

The side or truck beams are identical in shape, but occupy reverse ositions. A -de-. scription of one will serve or both. While, as intimated above, the truckbeam may be "made of several cast or rolled metal parts, I

much prefer that it shall be a single piece of cast-steel molded or cast in the exact form required and adapted to serve the several functions of the many e uivalent parts in the ordinary truck-frame. an inverted-arch bar, smaller at the ends than middle, with its middle top-portion substantially in the plane of the car-axle centers. Because of this shape of the beams the bolster is, in effect, swung or hung from the tops of the journal-boxes, and its lateral thrust has little torsional effect upon the truckbeams. The upper and lower chords or flanges 10 and 11 'of thetruck-beam are preferably straight at the ends and also at the middle, and the intermediate converging portions take the form of ogee-curves, giving the whole the appearance of a dipped or depresse'd center truss. The top and bottom flanges 10 and 11, which provide strength against lateral strains, are joined by one or more vertical webs 12, which, of little height at the ends of the beam, increase in depth toward the middle of the beam, making, with sist all lateral and vertical strains.

n shape the beam is vided and extends around each si the. flanges, a beam of ample strength to re The ends of the beam are straight and rest squarely upon the tops of the journal-boxes. The bottomof the beam is substantially in the planeof the bottoms of the journal-boxes, and a tie-bar 5 is bolted or otherwise preferably secured to the bottom flange 11 of the truck-beam and to the bottoms of the boxes. Large bolts 13, extending between the ends of the beam 4 and the tie-bar 5, embrace the boxes 3 to bind the parts 4 and 5 firml upon said journal-boxes. The bolts pass t rough lugs or ears 3 on the journal-boxes. 4 4 represent gage-lugs on the .beams 4. When the journal-boxes 3, the beam 4, and-the tie-bar 5 are properly alined and bolted together, they constitute a rigid and very strong frame of comparatively light weight, the beam because of its peculiar shape being capable of sustaining-great weight and withstanding all lateral and torsional strain.

-It will be seen that the side ,beamis provided with a bolster-s ace that is open at the top, being formed by t e aws or co umns 14, that r se from the top of the beam. The columns or jaws 14-14 are plate-like in form and are strengthened by the thick webs 15, together with the top flanges 14 and lugs 15, preferably all intergal with the body of the beam. The columns thus formed are full capable of withstanding all fore and aft an lat.- eral strains or blows from the truck-bolster and also fit the ends of the bolster and prevent its longitudinal movement in the truckframe.

When the bolster has been put in place, as shown in Figsland 3, it is retained by a light lockingbar 17, placed across the tops of the columns 14 and secured by bolts18, the nuts whereof are within the inclosures formed by the bifurcated webs"-1 '5. (See Figs. 1 and 3.) It is obvious that upofn the removal of the bars 17 the bolster'may be easily taken from the columns or. uides without disturbing any other part of t e truck.

The'middle portion of the beam between the guides or columns, 14 is thickened or widened to form a deep spring-pocket 19, the bottom of which is belowthe top flange 10 'i. a, between the top and bottom flanges of the beam. y

The sides and ends of the pocket portion of the beam are preferably curved to avoid sharp corners, and the flange 10, which is interrupted by the pocket, is, soto s eak, di-

e of the pocket portion. As shown inFig. 2, these widened or extended flanges 10 substantially follow the curves of the pocket portion and merge with the solid portions of the top flange. .I' thus preserve the full strength of the top flange and at the same time provide a spring-seat that is much lower than that shown in the patent previously ranted to The advantage which attac es to the use of a depressed center side beam havin a relatively depressed spring-seat is that t e s rings and bolster maybe lowered, and thus the height of the truck reduced.

The middle portion of the beam is preferably stren' thened by transverse webs or' fillets 20, which extend from the web 12 and connect the lower' flange 11 with the upper widened flange 10.

The form of the relatively depressed spring seat or pocket depends upon the principal cross sections of the beam whatever their kind, and it will be obvious that this portion of the beam may be'modified without departing from the spirit of my invention, the gist of which resides in a spring-seat which is located between the top and bottom flanges of the beam.

The ends of the channel, sprin -plank,angles 9 or equivalent members preferably abut against the inner side of the vertical web of the truck-beam and are bolted to the beamflange 1 1 and fillets 20. The plank performs the offlce of preventing. the spreadin apart of the two truck-beams, being assiste thereinlby the columns and column-guides of the o .ster.

It has been explained that the truck-beam not only ties or rigidly joins two journalboxes, but also supports the weight of and on the truck-bolster. It also furnishes the spring-seat, provides or contains the bolsterguides, and with a simple bar constitutes the means for securing the bolster and springs in proper place. In addition to these functions I make the side beams of my truck to perform the further service of supporting the brake-beamsof the truck. The brake mechanism of the truck is not shown in the drawings; but it will be seen that each truck- 'beam is provided with two vertical bracket like webs 21, arranged upon the upper inner side thereof above the top web 10. These brackets 21 are preferably integral with the colmuns or bolster-guides 14 and are provided with lugs 21, having holes for pins, adapted to support the brakebeam hangers. It will be obvious that the gist of myinve'n- -tion to'wit, a truck-beam or side frame all of which is. substantially above the bolster spring-seat and beneath the columns-may be embodied in a beam that is built up from several parts. Thus the columns or the spring-seat plate, or both, may be formed separately and bolted or fastened upon the beam proper. This is also true of the brakehanger lugs, and it is also obvious that both the longitudinal and the cross sections of the truck-beam as herein shown may be modified to meet special requirements, and generally, as it is obvious that numerous modifica= tions of myxinvention will readily suggest themselves to one skilled in the art, I do not confine the invention to the specific construe tions herein shown and described.

Having thus described my invention, I

claim as new and desire to secure byLetters Patent- 1. A side-beam for car-trucks, com rising suitably-connected to and bottom anges and having bolster guides or columns on its top and a spring pocket or recess between sald guides, the bottom of said pocket being between said top and bottom flanges, substantially as described.

2. A side beam for trucks, comprising suit- 1 ably-connected top and bottom flanges and having its middle portion depressed, said: beam containin a spring seat or pocket the bottomiof which is intermediate of the said top and bottom flanges and also having bolster-guides on its top, in combination witha bolster sto -bar connecting the upper ends of said gui es, substantially as described.

3. The herein-described flanged side beam,

containing a pocket the bottomwhereof is beetween the upper and lower flanges of the V beam, substantially as described.

5. The herein-described depressed center side beam for trucks, provided with top and bottom flanges, having ends to rest upon the tops of journal-boxes, provided with a deep spring-recess, the bottom of which is below the top flange of the beam and provided with bolsterguide's, which rise from said top flanges, substantially as described. 1

6. The herein-described depressed center side beam, containing in its depressed center portion a recess or pocket whose bottom is below the depressed top of the beam, having ends to rest upon the tops of journal-boxes and provided with bolster-guides, which rise from the top of said beam, adjacent to ends of said recess, substantially as described.

. 7. The-herein-described beam, comprising suitably-connected top and bottom flanges and containing a s ring-pocket in its upper middle portion, 'sai pocket opening through the top flange of the beam, the bottom of said ocket bein between said top and bottom anges, sai top flange bemg extended around the walls of said pocket, and bolsterguides rising from said top flange, substantially as described. a

8. The herein-described beam, comprising suitably connected top and bottom flanges my and containing a s ring-pocket in its upper the middle portion, sai' pocket opening through the top flange of the beam, the bottom of said pocket being between said top and bottom flanges, .said top flange bemg extended around the walls of saidpocket, and bolsterides integral with the said beam and rising om the top flange, substantiall'; as described. H

s In testimony whereof I have hereunto set [5 hand, this 6th day of February, 1906, in presence of two subscribing witnesses.

ARTHUR LIPSOHUTZ.

Witnesses:

CHARLES GILBERT HAWLEY, J. HOLT.

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