US1186987A - Side frame for car-trucks. - Google Patents

Description

H. H. HEWITT.

SIDE FRAME FOR CAR TRUCKS. APPLICATION FILED Y 22. 19m

1 1 86,987. Patented June 13, 1916.

UNITED STATES PATENT oieFieE.

-HERBER'I H. HEWITT, F BUFFALO, NEW YORK.

To all whom. it may concern. Be it known that I, .l-licaennr H. HEWITT, acitizen of the United States, residing at liltfli illd, in thecounty of;l!h'ie, State of New .Yorlnluive im'entedcertain newand useful .Tuiprm ementsa, in Side zFrames for Carspecification. V

Trucksfof which I do declare the following to be a full, clear, and exact description, reference being ha d to theaccompanying drau ing, forming .part' of this specification.

The present inyention has for its object to produce a simple, strong and effective construction of car truck which can be readily andu eaply manufactured and which will combine maximum of strength with minimum of iieight. y a

The invention consists in the features of novelty hereinafter described,illustrated in 1 the accompanyingdrawing and particularly pointed out in the claims at the end of this Figure 1 is a iview illustrating the pre- 1 ferred nanner of formingmy improved side fr-amegl igtuL iisa view in side eleyation *of the finishedside frame. 1 Fig. 3 is a View s winlongitudinal section on lin 3-3 of Fig. 2. lllhile ;the improvedside frame herein-' after described-"has features which may be .adiantageously used, even if the side frame be made oficast metal, the main purposeof the invention is toenable a side frame to be j niade from flatbarsof ductile iron or steel s a weldingdieat and "finally removed to a. powerful press, where between suitable dies the metal will be squeezed ,to effect such proper disposition "of the metal as to give l to the side frame thedesired form', as will hereinafter more fully app ear.

of commercial sizes, in which form. the inetalwcanwbe manufactured more cheaply than when rolled) in special shapes.

In the preferred manner- 0f carryingout my invention, .ithe side frame is formed from flat bars .of iron. or steel. which are first cut to 'proper length, are then bent cold around forms of.(propershape and the parts are thjen assembled and welded together at thecontact P01111153 by electricity, by acetylene flameor any othersuitable manner.

After theuparts have thus been welded they will be placed in a furnace and brought to In Fig. 1

' .fofthe drawing Thareshd'uin the parts to comprise the side frame cut, benttoproper shape, and assembled ready for the welding operation. In theprocess of welding, small pieces ofmetalanay be added about the SIDE FRAME FOR CAB-TRUCKS.

,' Specification of Letters'P aten the truck.

Patented June 13, 016.

dpplication'filed May 22, 1911. Serial No. 628,800.

points of contact of the several bars, these pieces of metal fusing 'under the welding heat and combining with the bars at such points.

While my invention may be applied in the production of other designs than the precise construction of side frame illustratedin the accompanying drawing, the invention is' more especially intended for producing a side frame for car trucks of the type set forth in Letters Patent ofthellnited States No. 1,009,717, granted to me November 28,

1911. The side frames of the car truck set forth in said better-s Patent No. 1,009,741 have end portions formed with circular openings designed to receive spherical jour-' nal boxes and with central openlngs wherein will be journaled the ends of the transom that extend between the side frames.

In the accompanying drawing, the side frame is shown as comprising annular end" portions 5 and an annular central portion 6,

the annular end portions 5 being designed to receive the ournal boxes for the car axles of the truck and the annularcenti al portion 6 being designed to receive. one end ofthe transom that will connect the side frames of The annular end portions 5 and the annular central portion 0 are connected at top and bottom by longitudinal bars 7 and 8, and the annular end portions 5 and central portion (1 are connected togetherby the diagonally disposed truss barsQQ'. One of the longitudinal bars 7 or Sftand by preference the uppefi bar 7) has its ends welded to the annular end portions 5, While the opposite longitudinal bar, (preferably the lower bar 8) is by preference-formed integral-with the bar from which the greater portion of the annular end portions of the side frame are formed. Preferably, also, the diagonal truss bars 9 are formed from the same bar of metal that extends around the ends and forms the major part of the annular end portions of the side frame.

The preferred method of forming my improved side frame consistsin cutting a fiatbar of ductile metal to proper length to form not only one of the longitudinal bars (pref erably the bar 8) of the finished side frame,

but siifliciently long, also, to form the major parts of the annular end portions 5 and the diagonal truss .bars 9 of the finished side frame, this b'ar being bent as shown in Fig.

1 of the drawing. Another bar? of correspending cross section will be cut of proper lengthto extend between the. annular. end -portions 5,, as shown'in Fig. Shortseg gmental bars and-6 of similar cross sec-1:: '.tion will be cut to proper length and" bent; .fzin'segmental form and-will be placed in the? position shown in;.Fig. 1 of thedrawing The several'bars will .thenbe welded to'-.

. gether at their pointsof contact by electric-' other suitable manner, and by' small portions of metal will'be p aced about by an e ylene gas flameor, in any reference,

- the points of contact of the several bars,

these portions of metal becoming fusedand uniting with the bars in the welding opera- I tion'. In this way the sev ral bars lllllS- trat'ed in Fig. 1 of the drawing, will be securely welded; together. The skeleton frame thus formed'will then be placed in a heating furnace and brought to a welding heat and from thefurnace will be transferred to apowerful press and willbe squeezed between dies of proper shape, which will redistributes the excess metal forming the fil-I duce the width of the bars and cause them to be thickened somewhat toward the center, in order to give to the finished frame substantially the configuration shownin Figs. 2--and 3 of the drawing. A' small excess of metal beyond that used in the finished frame will-be supplied, this excess being squeezed out as fins between the dies at the middle-of the bars composing the side frame, these fins being later removed by proper tools in the finishing operation. The operation of heating and pressing the skeleton frame between dies not only insures a perfect weld of all the parts, but also most effectively lets at the points where the welds are made,

' as clearly 'shownin Fig. 2 of the drawing.

In the'formof the invention shown, the lowerlon'gitudinalbar 8 having truss bars 9 formed integral therewith, constitutes the tension member and the upper bar 7 constihates the compresslon member, and the fiber of; the metal extends in the direction of the severestrain exerted upon the bars. Either of the-bars 7 or 8 may be made somewhat heavier if found 'necessary to resist the "strains, andv indeed the thickness and rela tive proportion ofthe bars may-be varied without departing from the spirit of my invention; The sides of the'annular central .portion ofgthe "side frame obviously constitute most effective braces -=betwe en the, ten

sion andcompressionymembers' and the finfished side frame may be used either in the -p osition 'shown or may be reversed,'if;de-

So far-.a s-I, am aware, my invention presentsthe first instance of, a .side frame formed-of bentbars of ductile metal welded togetherto give thedesired shape to. the finished frame, which-feature may obviously beemployedinvario forms of side frames;

5t other-than the speei c. form illustrated in the accompanying u invention also presents. ,the first instance of a .side

frame embodying the specific features .of 4 construction above set out and offers the rst,,-in'st'ance'in which a; side frame has been formedfby' cutting ductile metal bars to proper length, then bending said bars to proper shape and Welding said bent bars together, in order to give the'requi red shape and disposition of the metal to the finished Having thusI-described my invention what '1; A side frame. for car trucks having open endportions adaptdto' receive the journal boxes, upper and lower longitudinal I claim as'new and desire to secure by Let- I bars' extending between said open end; por- ,v

tions, theseveral parts of saidside frame compri'sing' wrought metal bars welded to-' gether and shaped under an integral structure.

2. A" side-frame for. car trucks having open end portions adaptedto receive jour-' nal boxes, and an open central portion, upper pressure to form and. lower longitudinal bafs connecting said end and said central portions, the several parts of said side frame comprising wrought metal bars welded together and shaped under pressure to form an integral structure.

3. A side frame for car trucks comprising open ended portions; adaptedto receive the journal boxes, an open central portion and upper and lower longitudinal bars connecting said end and central portions at 'topand bottom, said side frame having also diagonal bars extending from'. the lower portion of the central opening tothe upper portions of the end openings, the several parts of said side frame comprising wrought metal bars welded together to form an integral structure.

4. A side frame for ear trucks comprising annular end portions adapted to receive journal boxes, an annular central portion and top and bottom bars connecting said several annular portions.

5. A side frame for car trucks comprising annular end portions adapted to receive journal boxes, an annular central portion, longitudinal bars connecting saidseveral an-' nular portions at top and bottom and diagonal bars upon opposite sides of said central portion an'djextending' therefrom to the annular end portions.

6. A side frame for cartrucks comprising open. end portions adapted to receive journal boxes, an open central portion, longitudinalbars connecting said end and cen-: tral portions, and diagonal bars upon opposite sides of said central portion and extending therefrom to the open end portions, said diagonal bars bein formed integral with one of said longitu inal bars.

7. A side frame for car trucks comprisceive a transom, top and bottom bars con ing annular end portions formed from bent bars, upper and lower longitudinal bars extending between said annular end portions one of the longitudinal bars being formed integral with said annular end portions.

8. A side frame for car trucks comprising annular end portions adapted to receive journal boxes, said end portions being formed of bent bars, longitudinal bars connecting said end portions at top and bottom, diagonal bars extending from said annular end portions toward the center of the frame and connections between the inner ends of said diagonal bars and one of said longitudinal bars.

9. A side frame for car trucks comprising open end portions adapted to receive journal boxes, longitudinal bars connecting said open end portions at top and bottom, and bars extending diagonally inward from the outer parts of said end portions toward the'center of the frame, and braces extending between the inner ends of said diagonal bars'and the longitudinal bar farthest thereg from, said several parts being formed of bent bars of metal.

10. A side frame for car trucks comprising open end portions adapted to receive journal boxes, anopen central portion to renecting said end and'central portions, diagonal bars connecting the outer sides of said open end portions to the opposite sides of the open central portion, said several parts being formed of bent metal bars and said diagonal bars being formed integral with one of the bars that comprise the open end portions of the frame.

11. A side frame for car'trucks comprising, open end portions adapted to receive journal boxes, an open central portion to receive a transom, and longitudinal bars connecting said several portions at top and tudinal bars and in part of segmental bars welded thereto.

13. A side frame for car trucks comprisingannular end portions, and longitudinal bars connecting said annular end portions at top and bottom, said annular end portions and said longitudinal bars being formed of ductile metal and the outer walls of said annular end portions being formed integral with one of said longitudinal bars 14. A side frame for car trucks comprising open end portions, an open central portion, top and bottom longitudinal bars connecting said end. and central portions, diagonal bars extending between said end portions and one of said longitudinal bars and short bars forming parts of said end and central portions, said several bars being welded together.

HERBERT H. HEWITT. Witnesses:

' GEORGEP. FlSHER,

KATHARINE GnnLAoH.

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