US1872897A - Pedestal binder for locomotive frames - Google Patents

Description

Aug. 23, 1932. B COQK PEDESTAL BINDER FOR LOCOMOTIVE FRAMES Filed Sept. 17, 1931 I N VEN TOR.

Patented Aug. 23, 1932 stars BERNARD fcooK, or ROANOKE counrifvmemm PEDESTAL BINDER non 'LOCOMOTIVE FRAMES- Application filed. September 17, 1931. Serial No. 563,340.

My invention relates to certain improvements in pedestal binders for locomotive frames. The purpose of the invention is:

To prevent concentration of stresses in the binder when it is pressed'into place on the frame; Y

To arrange the fitting faces of that part of the pedestal binder which bearsagainst the frames so they can be easily maintained;

To arrange the pedestal binder so there will be no possibility of a shoulder wearing on the frame fit of the binder to interfere with the maintenance of the fit between the pedestal binder and the frame, and to make the,

pedestal binder easy to remove; also other features that will be explained hereafter.

In the accompanying drawing, Figure 1 is an. elevation of the pedestal binder.

Figure 2 is a plan view of the pedestal binder.

Figure 3 shows, in elevation, a portion of the locomotive frame taking in that part surrounding one of the axles and shows the pedestal binder in place.

Figure dis an arrangement of the details ofthe pedestal binder and pedestal differing from that shown in Figure 3, but serving, in a large measure, the same purpose- Referring to Figure 3, the locomotive frame iscomposed of'a toprail l, a bottom rail 2 and the pedestal 3. Thesepedestals are each side of the, opening to receive the axle box. The pedestal binder 4 is placed so as to cover this opening at the bottom and virtually to make the bottom rail continuous. It is very necessary, in order to resist the very heavy forces set up in the locomotive frame, that the contact surfaces 5, between the pedestal binder 4 and the bottom part of the 49 pedestal 3, which parts we will call the pedestal toes, should be very well fitted and should remain so fitted, and at the same time be so arranged that thepedestal binder can be readily removed.

Under the heavy working forces of the locomotive it is practically impossible to prevent some movement at the contact faces 5. This brings about wear of the parts and with this wear the pedestal binders become loose. 50 When the pedestal binders become loose,

the binder as. is left between the top of the Y a pedestal binder and the bottom rail of the frame similar tolocation 6, as shown in Fig-- ure 3. This clearance allows the pedestal binder to be tightened on the frame by bolts, similar to, 9. Y j Y Intheold method, however, where there are relatively sharp corners in the bottom of the slot in the pedestal binders, very heavy stressesare set up and the pedestal binders are often broken at these sharp corners. In pressingthese old form pedestal binders in place, the bottom of the slot in the pedestal binder is often brought close against the toe of the pedestal at the same-time the top of the pedestal binder comes in contact with the bottom of the frame rail at a location similar to 6 in Figure 3. This does not allow for the tightening'of the pedestal binder by the bolts, similar to 9,nor does it leave an opening for inserting a wedge for forcing off the binder.

When the old-typepedestal. binder is applied and there is clearance left between the bottom of the pedestaltoes and the bottom of the slot in the binder, the wear between the contact surfaces of the binder and the pedes tal toe produces a slight shoulder. I This shoulder forms. a high spot which quickly wears off, on account of the small bearing, when the binder is drawn up further on the taper of the pedestal toe, and allows the hinder to become loose. On this improved binder the clearance be.- tween thebottom of the toe, which is made flat, and the bottom ofthe slot in the pedestal binder, which is made with a slight curve 7, is deeper than the clearance allowed at the point 6; The endsof fthe'curve 7 are carried further each way than the width of the bot- I Q l e h ll fg i a t e l l ie i 's at he nsist-18,;

tom of the pedestal toe and are terminated by curves of very much'shorter radii, reversing entirely the direction of the surface as at'the point 8, and in this way makingthe surface 5 of the pedestal binder so that it will entirely clear the surface 5 of the pedestal toe, where they contact, and allow the toe to-reach into the space so that no slight shoulder will be 'This'will'fix'the binder worn on the binder; so that its surfaces 5 will'be fully mcontact throughout its lsextsntw thther urfaces of the pedestal toe.

The contact surface5 ofathepedestalbinder being free from and separated from the curved surface 7, will permit the surface '5 Of the binder. to bebuilt up by the welding process when it becomes worn without any damage to thequality of the metal of'the binder in the sections 7 and'at thepoi'nt 8. This building up of the worn surfaces allowsthe binder tobe refinished refittedas new. T he slight thinningdownin' the depth of the pedestal binder in the central portion of the surface 7 and'the gradual change ihthesec-v tion "the binder 1 at this point, 'prevent s the localizingfof' stresses in the binde'n as is case where the surfaces sharp intersec tions,suc'h as in the oldiformof pedestalbindofthe pedestal binders.

' 'It is'to benotedthat in the fittingof these er. It'w'i-llminimize the chancegof' fracture I pedestal binders they can be placed by hand, leaving afcl-earance at the'point'b, forcing them in place with the proper pressure, and

i" then having the pedestal binderbolt's 9 d'rawn tight; The farm of the pedestal binde r at the point 7 is such that it facilitatesthe "spring ingei *the binder un der the "load 6f these 7 bolts as the binder is drawn tighuandgwill bring the surfaces 5in completeanduniform contact, and at'the sametime distribute the stresses in the section of the, binder at the point 7.f 'l

' The" curved portion in thebottombf the slot in the pedestal' bin der will prevent this surfacefroin'ever coming" in contact with the bottom of the toe of the pedestal, sothat under every condition there ivill be'sufficient room to enter a wedge to drive the binder 01f when'jit is desirable to'removethe same, even thoughthe wedpging'action holds it very tight. Referring to Figure 45; The parts 5, and 8 are duplicates, in shape and in function, of

parts andS of Figure 3. The flat surface at 7 Figure 4, in conjunction withsurface 1Q will serve tokeep the surfaces from ever comingltogethen The curved end extension's 8' of the groove in the pedestal binder 4, used in connection with the plain surface 7 f, Figurefl', whilefit may not'fbe' thepre:

" ferriedarrangemenuiwill prevent thelocalizing of s tresse's 'at,' 8, and will permit the build;-

.ing' up of thesurfa'ces 5" by'the welding prof-i cess without injury to the qualitviof the metal Figure 4, just as Figure 3. r r r In the matter of preventing contact between the bottom of the pedestaland the bottom of the slot in the binder, under all circumstances,

the use of the surface 10 Fi 'ure 4 serves iust V i 7 9 does the" arrangement in p as well in conjunction withthe surface 7, of I FigureS, as with surface 7 Figure 4.

Having described my invention sothat any one familiar with the art can readily use the am an p rc v it adva I claim:

'1. In a locomotive or vehicle frame, the

combination @ofupedestals and a pedestal binder, said binder having a slot receiving and making contactwiwith the toe of each pedestal, said slot having at its bottom a curved surface 'terminatingin additional curves reversing the direction of said surface, said additional' curves extendingbeyond the contact surface betweenisaidpedestal toe andsaid binder.

,7 2. Ina locomotive orvehicle frame, the

combination of pedestals and a pedestal binder, said binder having a slotreceiving and making contact with the toe ofeach pedestal, said slot being recessed at the bottom beyond the cont-act surfaces between said pedestal toe and said binderso as to provide contact 1 0f the binder with thepedestal toethrouglrout the whole contact surface of the'binderI 3. In a locomotive or vehicle framg the making contact with the sides of the toelof eachlpedestal, the bottom of the pedestal toe and the bottom of said slot being of different contours to prevent them" coming in contact with each other.

5. In a locomotive, or vehicle framefthe 1 combination of pedestals and a pedestal b-inder, said binder having a slot receiving and mak ng'c'ontact with thetoeof each pedestal, said slot being recessed at thebottom beyond the contact surfaces sofas to permit'thebuild :11; lngi up of the whole of the contact surfaces by weldmg without bringing the welding metal in contact with the bottom of'the" slot. .6, A locomotive or vehicle frame pedestal binder, having a slot'with contacting sides 1:;

and, a curved bottom.

7. A locomotive or vehicle frame pedestal binder, having a slot with contacting sides and a curved bottOmQsaidcur ed bottomgex tending beyond said corizactingsides.

In testimony whereof, I- hereunto alfiX -my h signature this 14th of Sept, 1931.

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