US993577A - Truck side frame. - Google Patents

Description

5.0.100VBRT- TRUoK 'sms FRAME. I APPLIOATIONIILED DEO. 20, 1910. 993,577' Patented May 30, 19'11.

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E. c. COVBRT, TRUCK SIDE FRAME.

.APPLICATION FILED DEO. 20, 1910.

Patented May 30, 1911 4 SHEETS-SHEET 2Q mv'aNToR.

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E. {1} GOVERT. TRUCK SIDB FRAME. APPLICATION I'IL'BD DEO. 20, 19.10.- I 993,577-, 'Patented May 30,1911.

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E. C. GOVBRT.

TRUCK SIDE FRAME.

APPLICATION FILED DEO. Z0, 1910. f 993,577. Patented May 30,1911.

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i UNITED STATES. PATENT oEEIoE.

EDSON C. GOVEBT, F NEW KENSINGTON, PENNSYLVANIA.

TRUCK SIDE FRAME.

Specification of Letters Patent.

Patented May 30, 1911.

Application flied December 20, 1910. Serial No. 598,418.

To all whom 'it ma/y concern:4

. Be it known that I, EDsoN C. CovERT, a. citizen of the United States of America, re-

' siding at New Kensington, in the county of v"Westmoreland and State of Pennsylvania,

have invented a new and useful Improve. ment in Truck Side Frames, of which the .following is a full, clear, and exact descripv grally formed frame which may be readily formed Wholly or partially from lwrought metal conventional or commercial shapes, such as the commercial rolled steel shapes; and novel construction and connection of the journal boxes.

As a wrought metal integral side frame, my invention will be found to presenta construction particularly advantageous over the cast frame type mentioned above. Qast frames have been found highly objectionable by reason of the fact that the variations in the shrinkage of the metal alter or vary the distance between the centers of the journal boxes which are usually cast inte rally with the frame, or if not cast therewit i, are carried by a frame mounting to alter which, to meet these variations, would weaken the frame and reduce its efficiency. Furthermore, as is well known, great strength in cast structures is combined only with enor-` mous weight, and coupled with these objectionable features are the liability of the cast v metal to warp, and the necessity for discard- .ing the whole frame should only a part thereof become injured.

My invention overcomes these difliculties by the provision, as stated above, of a simple, lightl and strong construction, embodiments of which are illustrated in the accoman in# drawin s in connection with which I will now describe my invention so that others' skilled .in the art to which it appertains may understandarid construct the same, it being understood, however, that certain features of'iny invention,l as herein set forth, are applicable to truck sid frames other than those formed of wrought metal and that therefore no limitations in this respect are to be placed thereupon.

Figure 1 is .a perspective view of a truck showing side frames embodying my invention; Fig. 2 is a side elevation of thesame; Fig. 3 is a top plan view partly in section; Fig'. 4 is .a transverse section on the line 4-4 of Fig. 2; Fig. 5 is a side .elevation showing modifiedv manner of securin the bolster guide bars or columns to the ranie proper; Fig. 6 isa transverse sectional view of the frame proper, being taken on a line substantially central of the frame; Fig. 7 is a detail perspective view of one of the mem- .bers of the bolster guide columns; Fig. 8 is a similar view of the other member forming a portion of the guide columns; Fi 9 is a transverse sectional view throu the frame showing modiied manner o forming the bolster guide columnsand the spring plank seat' Fig. 10 is a vertical transverse section through a journal box on the line lO-lO of Fig. 9; and Fi 11 is a top plan view partly in section, t e frame being partly broken away and the box sections being horizontally sectioned.

In describing my invention, the-reference numeral 2 indicates the frame proper which Y preferably comprises a conventional rolled steel flanged shape, the vertical portion or web 3 of which is intermediately split or slotted and the flanged edges 4 and `.''and adjoining portions 3 and 3" of the web spread in the plane of the web 3 to form the upper 'and lower chords 6 and 7 respectively of the iframe. To strengthen the frame generally and the chords 6 and 7 particularly, I preferably provide the web 3 with the laterally projecting marginal flange 8. In carrying out the above forming operations, the beam is preferably lirst heated. However, it will,

be understood that this is merely .one of many ways of forminsr the diamond shaped l frame shown. For instance, it ,may be` formed from cast steel where a cast frame is desirable. The flange 8 of this frame, as

^ 25 other 'suitable fastening shown, is somewhat` wider orl more ex-` tended, preferably, at the central portion of the lower chord 7, as indicatedby the nu` meral 9, so 'as to form, in `complement vwith 5 the member 10 secured in opposite disposition thereto, a broad seat for the spring vplank 11EL of the car truck. The `member 10 preferably comprisesa section of commerycial angle bar, which, as shown, is disposed lo so as to bring a flange or leg portion 12 in alining cooperative association with the flanged portion 9, for the formation of the spring plank seat," as above stated,'with the other flange 13 depending and in facial 15 abutment with and secured, kpreferably 'by Welding or brazing, to the web 3b of the lower chord.

While the unionbetween the web 3b and member 10 is preferably through welding,

and in-this respect operates to'tvard mtegral formation of the frame, an advantageous feature spoken of above, I do not-desire to limit myself in this respect, as it will be apparent that rivets, as described below, lor

means may be employed for'this purpose. I

The numeral 14 indicates the bolster guide bars or columns which are secured to the chords 6 and 7 ,and comprise preferably the angle plates or sections 15 and 16. The sece tion 15 may be a continuation of thehorizontal angle section 10, being offset as at'17a and 17h. so as to cause its flange portion or leg 11 to lie. substantially within the .plane of the `web -3 in preferably welded union with the similarly disposed fiange 19 of the member 16` which lies between the fiange portions 8 of the chords 6 and 7; the terminal portionsv ofthe member 1 5 being-secured,

40 preferably by welding, to the inner face of the webs 3a and 3b of the chords, while the member '16 carries the terminal fianges 20 which are secured preferably in' alike man-y ner to the flange portion 8. The. other flanges 21- and 22 of the angle pieces 15 and 16 oppositely disposed, coperate to form the guide faces for the reception of the usual similarly faced end of the bolster of the car truck.

50, The columns 14 may flare or diver e at 'the base, as at 23, to permit of the en wise removal of the bolster, in the usual manner,

and as the Vertical travel of the bolster under service is, by reason of the usual under mounted springs, spring seat, and plank,

limited in a sense'to the upper part of the columns, I preferably make the flanges 21 and 22, at the base of the columns, a width uniform with that of the wide spring seat ;v

theflanges narrowing to standard guide width at the top of the columns, as is clearly shown. This construction not only conduces to symmetry but provides great reinforcement for the outer edges ofthe flanges 9 and 12 which form the spring plank seat.

chords and struts, by reason of 'the fact that.

the united flanges 11 and 19 lie in a plane substantially in registration with that of thev vertical member or web 3 of the frame and that consequently vertical operative stresses passing between the chords and struts are delivered in substantially coincidental lines.

In Figs. 5 and 6 I show the angle sections 15 and 16 as being riveted together and secured 'in a like manner to the frame chords 6 and 7, as distinguished from the construction shown in Figs. 1, 2, 3' and 4, which views are 'to be understood as showing the several parts of the fralne secured to one another by Welding.

In Fig. 9 I show a modifiedmanner of forming the spring plank seat. In vthis View the web of the frame 2 is shown-as being' formed without the flange 9 at the center of -the frame and as having 'an an le member` l5 which is substantially a duplicate of the member 15 and-is secured to the outer face of the frame or to the web or webs'of the chords in opposite disposition to and in cooperative association with the member 15.

The journal boxes of my improved side` frame are indicated by the numerals 24.

They each comprise two sections`2'5 and 26 which have respectively fianges 27 and 28V which lie in facial abutment with and are secured, preferably by welding, to the member 3 as shown in Figs. 1, 3, -10 and 11. Each section 25 and 26 preferably comprises a sin- 110 gle pressed .sheet metal shell-like portion; the section 25 having the usual forward opening 29 and cover hinge lugs 30, a suitable journal box cover being indicated by the numeral 31 in the preceding views 1 and 2. These hinge lugs 12 may also be welded to the upperface-32 of the box as shown. It

is, of course, apparent that the box may be v cast instead of being formed from sheet ..metal, if such a'box is desired.4 Stop lugs 33 for the wedge plate .of the. journal box are preferably integrally formed on the box section 25 by striking down the upper portion 32 of the box in the manner shown'inl I Figs. 10 and 11 The side lugs for the bearing plate or brass of the journal maybe formed by striking in the box in the manner A indicated by the numeral 34, this depression or indentation being on opposite sides of the` shoulder or projection 35 of the frame v(.2, which projection is preferably-of such natu'ie preferably welded to the as to provide. the vert-ical face 36 which alines in association With the faces 37 of the struck-in portions 34:. The projections 35 are shown in elevation in Fig. 2 of the drawing, without the section 25 secured to the frame.

As shown in Fig. l0, the journal opening 38 in the member 3, and-which isinclosed by the box sections 25 and 26, is of` such nature as to cause the` to horizontal face 39 thereof to lie preferab y flushwith the underface of the top of the box.' By this arrangement the vertical stresses delivered to the usual bearing plate, indicated in `dotted line, will in turn be transmitted substantially directly to the vertical, .member 3 of the frame and not indirectly through the box sections 25 and 26 in such manner as to ,place shearing, stresses on these boxsections. This is also true of'the thrusts upon the side lugs of the box, in the construction shown in Figs. 3 and 11 the inwardly projecting shoulder or face 37 lying, as above stated, flush with the. inner face 36 of the projection 3l of the side frame. The numeral 40 indicates a suitable dust guard plate havingthe flange portion 41,

which is shouldered 4as at 42 to receive in abutment the edge 43 of the section 26.

This section 40 is, through. the flange 4l,

section 2G.

It will be apparent that many changes may be made in'V the construction shown without departing from myinvention. While .I have spoken of the several parts as vbeing secured together by welding, which may be done electrically, or otherwise as by brazing, it will be apparentthat rivets or other fastening means may be employed for.

this purpose. For instance where welding is not feasible, such as in certain cast structures, such separate fastening means above described may be employed.

The frame construction shown is one of maximum strength employing a minimum fof metal.- It may be readily formed from commercial shapes and 'lends itself to such symmetrical design as to provide a side frame in which the metal is so disposed as 'to take the stresses or strains and deliver `them to the several points cf support in a 'ranner avoiding all leverage strains as `o erate to impair the truss integrity of the `frame.

Having thus described my invention, what n I claim and desire to secure by Letters Patent is:

-1. A truck side frame of the general 'diamond lshape having top and bottom truss chords, and journal boxes-integrally carried by the frame and positioned inter- 1 mediate the chords.

.truss chords,

carried, by chords. j n i 3. A truck side frame ofthe `general diathe Vframe andembraced by the` mond sha e having top and bottom truss connecting the chords, and journa boxes the web portion and embraced by` the web portion and connecting the chords, struts interposed between thechords, and journal boxes carried by" the web portion and positioned intermediate the chords.` l

6. A truck side frame of the general diamond shape having top and bottom truss chords and a vertical web like portion i connecting the chords, struts interposed between th'e chords and secured to the web portion, and journal boxes carried byI the web portion and positioned intermediate vthe chords. 1

7. A truck side frame of the general diamond shape having top and bottom truss chords and a vertical web like portion coiinectin f the chords, struts. interposed between an integrally secured to the chords,

and journal boxes carried by the web por?4 tion and Vpositioned intermediate the chords.

8. A truck side frame of the general diainondshape having top and bottom truss connecting the chords, struts interposed between the chords, and journal boxes Vintegrally carried by the frame and intermediate the chords.

9. A truck side frame of the` general diamond shape having to and bottom truss chords and a vertica web like portion connecting the chords, struts interposed tween the chords and integrally 'ca'iried thereby, and journal boxes integrally carried by the frame and positionedinte'rmediate the chords.

10. A truck side frame'of the general dia-` and bottom truss web like portion and journal boxes ,mond shape having to chords and a vertica connecting the chords,

carried by the web portion and .positioned intermediate the chords and comprising a plurality of sections mounted on opposite sides of the vertical portion.

11. A truck side frame of the' general'dia! mond vshape having top 'and bottom truss chords and a vertical web like portion connecting the chords, Vstruts interposed between the chords, and journalboxes carried ,by the web portion1 ,and positioned intermepositioned chords` and a vertical web flike portion diete the chords and comprising each a two prsing a plurality of sections` mounted on party casing mounted on opposite sides of opposite sides of the vertical portion. 10 the vertical portion. In testimony whereof, I have hereunto set 12. A truck side frame of the general da, my hand. mond shape having top and bottom 'truss EDSON C. COVERT. chords and a vertical web like ortion Witnessesz`- connecting the chords, and journaJ boxes M. A. KELLER, integrally oarried by the frame and com- M. A. BARTH.

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