US1000932A - Draw-bar and yoke. - Google Patents

Description

G. C. MURRAY.

DRAW BAR AND YOKE. 'APPLICATION FILED MAR.22,1911.

1,000,932. I 1 Patented Aug.15,1911.

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MRW/M @JM @mgm/W G. C. MURRAY.

DRAW BAR AND YOKE. APPLULATION F'ILBD 11.13.22,'1911.

1,000,932; PatentedAAug. 15, 1911.

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lima@ @im @WM G. C..MURRAY.

DRAW BAR AND YOKE. APPLICATION FILED 10.3.22, 1911.

1,000,932, Patented Aug. 15, 1911.

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Il Il HI m1 Il, vlv H l N GEORGE C. MURRAY, OIj NEW YORK, N. Y.

DRAW-BAR AND YOKE.

Specification of Letters Patent. Patented Auw.. l5, lgllll.

application led March 22, 1911. Serial No. 616,188.

.To all whom it may concern.'

Be it known that I, GEORGE C. MURRAY, a citizen of the United States, residing at New York city,` in the county of New York and State of New York, have invented certain new and useful Improvements in Draw- Bars and Yokes, of which the following is a specification. *Y

The object of'hny invention is to provide an improved draw-bar and yoke of such construction as to permit removal of a damaged draw-bar and replacement thereof without removing the draftY gear fromthe car, and also to permit a draft gear to be removed from a car and replaced Without the necessity' of also removing the draw-bar and yoke. l

Owing to rough usage, it frequently becomes necessary to replace or repair drawbars on account of injury to the coupler head thereon, or by reason of being otherwise damaged. Draft gearings as ordinarily constructed consist of a. number of parts, including springs, and it is frequently necessary on account of breakage that they be removed for repairs or for replacement by a. new gearing.

at one end to the coupler draw-bar and the draw-bar, yoke and draft gear must all be removed from the car in order to replace or repair any one of said parts. These parts are necessarily of quite massive construction in order to withstand the stresses to which they are subjected. 'The removal of a draft gear, together wit-h the draw-bar and yoke, therefore, involves a large amount of labo1 and is ordinarily accomplished by the use of ,ifacks The purpose of my invention is to obviate the larger amount of vthis labor by so constructing the draw-bar and yoke that the draw-bar or draft gear may be separately removed from the car and replaced without the necessity of removing the entire mechanism. The means whereby I accomplish this object Will more clearly appear from the following description and drawings, in which- Figure l is a perspective view of a drawbar and yoke constructed according to my invention. Fig. 2 is a central longitudinal section in perspective through the draw-bar and ,yoke at the point where they are connected. Fig. 3 is av fragmentary7 perspective View of the lower part of the yoke at the As ordinarily constructed, draftgears are embraced by a yoke rivetedl end thereof which engages the draw-bar. Fig. Ll is a perspective view of the upper member of the yoke. Fig. 5 is a perspective view of the `lower member kof 'the yoke. Fig. G is a perspective view of a key and Cotter pins used for securing-the yoke to the draw-bar. Fig..7 is a perspective View f of a hinge pin and cotter used for connectino together the inner ends'of the parts ofb the yoke. Fig. 8 is a fragmentary p spective view of the inner end of the voire having another form of hinge conne tween the upper and lower melnbc is a longitudinal sectional view in perspective of the structure shown in Fig. Fig. 10 is a fraglnentary perspective view showing another form of connect ion between ilu-x upper and lower members of the yoke et, the point where they engage the draw-bar. Fig. l1 is a fragmentary perspe vc r' of the end of the lower yoke member l tratedin Fig. 10. Fig. l2 is a transff f sectional view through the drmv-bar and yoke illustrated in Fig. lO, the section being taken just inside of the end of the drawbar. Fig. i3 is a transverse section through the yoke and inner ends of the f lraw-bar of the form shown in Fig. l.

In their general outlines, my improved yyoke and draw-bar are of the form now in conimonuse, only such changes of form being made as are necessary to embody the features set forth in the foregoing statement of invention. It will be obvious, however, that the general principle of the invention may, if desired, be applied in many difterent forms of mechanical structure.

Referring to the construction illustrated i inFigs. l to 7 inclusive, the draw-bar 1 is provided with the usual shoulders 2 to be engaged by the shoulders 3 at the outer ond of the yoke el. The yoke comprises separable upper and lower members 5 and 6 suitably hinged or otherwise detachably connectedtogether at their inner ends. As illustrated in Fig. l, the inner ends of the yoke members 5 and 6 are provided with eyelets 7 and S into which a hinge pin' 9 is inserted. The hinge pin 9 is preferably provided with. a head l0 at one end and with a perforation at the other end for the reception of a cotter ypin 1,1, for the. purpose of holding the parts against accidental displacement. The outer end of both the upper and lower yoke members are turned inward to form shoulders ldesigned to engage the pon the draw-bar in accord- 1- usual custom. it its lout-er end f yoke member 5 is provided with 1ly pro] ecting side flanges 10a provi their lowers ends with keyways 11a. he side flanges 10'nl are designed to embrace the sides of the head of the draw The lower yoke member 6 is profr vided with upwardly projecting side ilanges. 12 which are otiset outwardly at 13 and atv their upper ends provided with keyways 14C. rlhe lower parts of the side flanges l2 are designed to lie against the sides of the drawbar 1 while the upper outwardlycset parts lie outside of the depending side flanges 1()a of the upper yoke member, as clearly illustrated in Fig. 1. In `this form of construction the inner end of the draw-bar 1 is provided with a keyway 15, and a key 16 prfovided with apertures at its ends for the reception of Cotter pins 17 is inserted through the keyways in the upper and lower yoke l members and in the draw-bar when the parts are assembled, as shown in F ig. l.

In 1 I have diagrammatically illustrated a draft gear. In case it is desired to' replace the draw-bar 1, lfor any reason, the key 16 is removed vand the upper and lower members 5 and 6 of the yoke separated suiii-l ciently to disengage their shoulders 3 'from the shoulders 2 upon the draw-bar, Whereupon the draw-bar can easily be removed.

The draw-bar can then be replaced by simply inserting its inner end between the outer end of the yoke, bringing the outer ends of the yoke together and fastening them in place by the key 16, as illustrated in Fig.l 1..

In order to perform this operation it is not necessary to remove the draft gear or to lower it to the ground. If there is suiicieiit space beneath the car the upper member 5 .of the yoke can be raised upon its hinge joint and the draw-bar lifted sufficiently to disengage its lower shoulder 2 from the shoulder 3 upon the lower yoke member 6 and then withdrawn. In case there is not suiiicient room between the upper yoke member 5 and the part of the car immediately tion of the car. It desired, lthe dra-ft gear may be supported upon the lower yoke member 6 when the latter is lowered to permit withdrawal of the draw-bar. 'In any event,

however, 'the labor oi lowering the draft' gear to the ground and lifting it again is not necessary to permit removal of a draw-bar.

If it is found necessary to remove and replace a draft gear, the key 16 will be reincassa moved, as -above described, and the lower yoke member 6 permitted to turn downwardly upon its hinge joint without removing or disturbing the draw-bar. This will permit the draft gear to be removed and replaced by another and will avoid the labor and delay incident to the removal of the draw-bar and yoke.

While I have referred to a hingedjoint between the members 5 and 6, it will be obvious that the invention may be carried out in a variety of ways, as by bodily'removing the lower member 6 of the yokev instead vof turning it upon its hinge joint. AIn the construction shown in Fig. l this could be accomplished by removing the hinge pin 9 and key 16. It will be understood that the key 16 passes through the draft sills, and the parts may, if desired, be so proportioned that the key will assist in transmitting pulling and buiiing stresses from the draw-bar to the body of the car.

In Figs. 8 and 9 Ihave shown another form of connection between theA inner ends of the upper and lower members of the yoke. In this -instance the upper member 5 and the lower member 6 are provided with outturned lips 19', the outer surfaces of which' converge toward the ends of the yoke members. The upper and lower members are secured together bymeans of a block 20 provided with an undercut groove .21. 'Ihe block 2O may be slipped endwise. over the lips 19, thus form-ing a dovetailed connection between the block and the two yoke members. The lips 19, as shown, are notched at 22, and openings 23 in the block 2O register with said notches when the parts are in assembled position, thus permitting a cotter pin 24k to be passed through the openings 23 and through the notches 22 in the lips 19. By this means the parts are securely heid in assembled position. `Whe1i the key 16 is removed, the connection `formed by the block 20 may, if' desired, be utilized as a hinge joint, permitting the lower yoke member 6 to be dropped at its outer end, the outer end of the lip 19 upon the lower yoke member being cut away, a-s shown at 25, to permit such a movement thereof., The outer edge of the lip 19 uponthe upper yoke member is similarly cut away in order tol permit of the upper member being similarly moved. This form of construction also permits the lower yoke member 6 to lbe bodilyremoved when necessary by simply removing the key 16 and the block 20.. l l

In Figs. 10, 11 and 12 I have illustrated a construction similar to that above described 'except the side flanges 26 upon the upper yoke member 52 projectdownwardly beneath the lower yokemember 62. The lower yoke member 62 is also provided with downwardly projecting flanges 27 at either side,V and keyways 28 are provided in the lower parts of the lianges 26 and 27 just beneath the lower surface of the lower yoke member 62. When assembled, as shown in Fig.

10, the parts are secured together by means of a key 29 which passes through the keyl Ways 28 in the flanges 2G and 27 just be-l neath the lower surface of the loweryoke member 62, the key 29 being held in place by means ofcotter pins 30. ln this construction the key does not pass through the draw-bar.`

TWhile l. have described in some detail sev- 'eral modes of applying my invention, it Will be understood that the application of the broad principle is not dependent upon the particular modes of construction herein illustrated and described.

That claim is:

1.111 device of the class described, a draw-intrv provided with shoulders, a yoke comprising two independently movable members each having a shoulder adapted to coact with one or the shoulders on the dranL bar, said independently movable members being provided with horizontal apertures rigidlj.Y to at their shouldered ends,

described, a lv osed a volny com- 23. In d f of the cl draw-bar provided with opp outwardly progs/.ttm 0 shonldi described, a rely disposed a yoke oomprisii'g 'tvvo members, e ch or said members having an inwardly projecting shoulder and side iianges at one end, said side Hanges and draw-bar being provided with openings adapted to register when the yoke shoulders engage the draw-bar shoulders, a key adapted to engage said openings, and means for securing the opposite ends of said members together. v

In a device of the class described, draft sills, a draw-bar provided With oppositely disposed outwardly projecting shoulders, a yoke comprising two members, each of said members engaging the top and bottom of the draw-bar and having an inwardly projecting shoulder and vertical side anges at one end, said draft sills, side flanges and draw-bar being provided with openings adapted to register when the yoke shoulders engage the draw-bar shoulders, a key adapt-` ed to engage said openings, and means for securing the opposite ends of said members together.

5. In a device of the class described, a dar\vbar provided with oppositely disposed outxvardl y projecting shoulders, a yoke comprising two members, each of said members having an inwardly projecting shoulder; at one end, means for securing said members rigidly together at their shouldered ends, and a hinge connecting said members.

6. in a device ofthe class described, a drawdiiar a yoke comprising two members connected by a hinge joint, side ianges'on said yoke members adjacent said draw-bar, and a key passing through apertures in said side flanges and dra\v-bar.

ln testimony whereof, I have subscribed my name.

l GEORGE C. MURRAY. Witnesses:

ANNA L. vVAL'rom HENRY A. PARKS.

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