US940865A - Brake-hanger-pin construction for car-truck side frames. - Google Patents

Description

. G. G. FLOYD. BRAKE HANGER/PIN CONSTRUCTION PCR CAR TRUCK SIDE CRAMES.

` AAPPLIOATION FILEB APB.. 12, 1909.

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HUI l H I I Zin/wei?? Patented Nwzs, 1909'.

" nin v.fi'rnn'r ons.

GEORGE e. smo-YD, or GRANITE ciw, immers, ssenon ro' AMERICAN, STEEL EoUnDmEs, or NEW Yoan, N. Y., .a conroaa'rron or NEW JERSEY.

saam-Hausmann coNsmaUcrroN Eon cansan-UCK sinn rEAMEs.

Original application filed March 22, 1907, Serial No. 363,822. Divided'and 1909. Serial No. 489,316.

v To all whom t't'may concern.'

Be it' known that I, GEORGE G. FLOYD, of-

such holes-being equidistant from the ends of the pin to facilitate the production of the -completed structure, asis hereinafter indicated,

InasmuohL asjsome of, the advantages of this improved construction reside n the ease and facility of 'its production, I will indicate `herein to some extent -t-he method of manufacture. The "pattern, of the lsideframe has two apertures or recesses in bosses on itsfinner face,.t'he"recesses corresponding in size and shape of cross-section to the section ofthe pins.; One of such pins or rods is inserted 11i-each ofthe pattern recesses, and the combined or united pattern and pins.

are used. as apattern to form the mold cavity l in the sand, 'it being understood thatthis inventioni has particular reference to -castmetal side-frames such as" cast-steel. i pattern proper is thenremoved or with drawn from the sand, leaving the pins partiallyembedded therein and partially projecting into the'moldcavity oropening. -The recesses of the pattern are sufficiently deep so that the aperture at one end of each in will be in the mold cavity in the sand after -the pattern has been withdrawn. Then the molten metal is poured into the mold, and, as is obvious, it Hows about the pins and partially or wholly lls the holes thereof, whereby when the casting cools and hardens the pins are-partially and firmly embedded or anchored in the casting. By placing the holes inthe pins at equal distances from the adjacent '.ends it is immaterial which end is inserted iin the aperture yor recess of the pattern,l so that the foundryman is free to insert eitherl 'end he pleases, and

itl'is impossible Afor him to make-a mistake' in this regard. It is to beund'erstood' that Specification of Letters Patent.

The

Patented Nov. 23, 1909. this ,appneation inea April i2,

.each pin isins'erted the full depth of the recess in the pattern in order that the length of pin projecting' from the pattern or casting may be fixed and predetermined.' The purpose4 of the hole through the pin near vits free end is to accommodate a split pin or cotter to maintain the vbrake-hanger in proper place on its protruding support.

A car-truck side-frame having the characteristics and made inthe manner indicated effectively performs the functions for which it is employed, and the brake-hanger supportingv means thereof are produced at a minimum of expense and Without likelihood of the foundryman making any error or mistake therein.

.I have illustrated the preferred form pr embodiment. ofmyA invention in the* accompanying sheet of drawings, and throughout the various views thereof like reference characters refer to the same parts. 1

Figure l is a side elevation of a cast-meta railway car-truck side-frame equipped with my improved brake-hanger supporting means; Fig. 2 'is a top plan View of the structure shown in Fig. l; Fi 3 is a perspective' view ,of one ofv the Iineke-hanger pins illustrated on an enlarged scale; and

ig. 4 is a vertical transverse section through the top .portion of the side-frame f and one of the bosses equipped with one of t-he pins mentioned.

As willbe readily understood by those skilled in this art, the pattern of the truck sido-frame Will necessarily be substantially, or in general appearance, like the side-,frame proper 10 illustrated'in Fig. l, and that such atter-n Will have projectinglaterally from its inner surface a pair of bosses corresponding to the side-frame bosses 11, illustrated perhaps most clearly in Figs.l 2 and 4 ofthe drawings. have a central circular recess or aperture corresponding to the recesses 12 of the bosses of the side-frame.

Before the Wooden pattern is placed in the sand to form the mold cavity, a metallic pin 13, like or-similar to that shown in perspective in Fig.' 3, is inserted in each pf the boss recesses 12 of the pattern so that thev end of the pinv rests-on the bottom or-rear wall thereof, the portion of the pin projecting from the pattern being of the desired length and being determined by. the depth Each of such pattern bosses will 'form the mold cavity.

of the boss cavity. As is indicated in Fig.l 3,'each brake-hanger supporting-pin 13 has an aperture 14 extended laterally therethrough near each end, these holes being at equal distances from the adjacent ends of the pin, for the purpose indicated above. After the-pair of pins or supporting` rods 13 have been inserted in such pattern recesses the combined side-trame pattern and pins are' used as a single or unitary pattern to Subsequently the pattern only of the side-frame is Withdrawn from the sand, leaving the projecting por-- tions ot the pin 123 imbedded in the sand, and leaving those parts of the pins which were previously in the recesses of the pattern projecting into the mold cavity. The depth I of the boss `recesses ot' the pattern is such i that the hole 14 in the inserted end of cach pin is Wholly Within the boss. The mold is noW ready for the pouring ot the molten metal, andV after the cavity in the sand has been filled and the metal cooled and hardened, it will be found that during the casting operation the hot metal flowed into the holes 14 of the cylindrical pins Within the mold cavity so as to form the strips of uniting or anchoring metal 15, which actto securely and firmly hold the ends of the pins in the side-frame. The manner in which the brake-hangers 1C are supported on these apertured pins 13 is clearly illustrated in Fig. 4, the upper end of each hanger having holes in ivhich'the pin 13 is intended and is adapted to lit. A tlat split or Cotter-pin 1'7 or similar means is passed through the'outer hole 14: of each pin, so as to securely but detachably maintain each hanger on its support.

vWith a construction of this kind it Willbe readily apparent that the hanger 16 maybe readily removed from the side -frame by merely sliding it sidewise and Without anys` tilting, which is an advantage at once obf vious to those skilled in this art. i

@Wing to the tact the transverse holes or i apertures 14 ot' the pins 13 are equally dis tant from the ends of the pin, no care need be exercised to determine which end should I be placedin the boss recess of the pattern, and for this reason it is impossible for the foundryman to make a mistake. Also, the foundryman makes no error regarding the extent to which the pin should project from the pattern, since the pin is always inserted sufficiently to strike the botto'm of the boss recess. In some cases it may be desirable to vary the amount of projection of such pins from therends of the bosses even When the saine .Wooden pattern is used, andto achieve this result, after employing longer or shorter pins Washers orfillers may be removably held. in the bottom of the pattern boss recesses in any approved manner.

To those skilled in this art it Will be apparent that minor mechanical changes may be made in the structure herein shown and described and in the manner of anchoring the pins in the side-frames without depar- -ture from the heart and essence of this invention, and Without its benefits and advantages.

This application is a division of my former application Seria-l No. 363,822, tiled March 22, 1907.

I claim:

1. The combination of.a cast-metal truck side-frame and a brake-hanger pin havin an aperture near each end, one end of said pin being embedded in said side-frame and having a portion of the metal thereof in said aperture whereby said pin is firmly anchored in said frame, substantially as described. r

2. The combination of a cast-metal'y truck side-trame and a brake-hanger pin having an aperture near each end, said apertures being equidistant from said ends, one end of said pin being embedded in said side-frame and having a portion of the metal thereof in one of said apertures whereby said pin is firmly anchored in said fra-me, substantially as described.

GEORGE G. FLOYD. iVitnesses: Y

E. B. SHERZER, J. W. LAMONT.

the sacrifice of any of

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