US1301681A - Draft-rigging for railway-cars. - Google Patents

Description

E. GEORGE. In.

DRAFT RIGGING FOR RAILWAY CARS.

APPLICATION man JUNE 23. 1911.

Patented Apr. 22, 1919.

UNITED STATES BATENT Emmi cncaea, an, or rrrrsnumrt, PE NSYLVANIA, ASSIGNOR TO THE meconwaasg 110594. 8? QOMBANY, 0F PITTSBURGH. NNJWLVAH A. & QQBB MTIQN QF .I H

ma ec m FOB- teammate- SYLVANIA.

. Specification of Letters Patent,

Paiemeaa a 22, 1am.

Application filed June 23, 1917; Serial No. 178,522.

To, all whom it may concern Be it known that I, ENOOH GEORGE, Jr., a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Draft- Rigging for Railway-Cars; and I do hereby declare the followin to be a full, clear, and exact description oi the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to the construction of draft ri ging for railway cars and particularly to the coupler and draft yoke elements thereof. The principal object of the invention is to produce a simple, strong and efficient form of pivotal connection for the coupler and yoke which will enable the tail pin or separate pivot pin usually employed to pivotally connect the parts to be dispensed with. A further object of the invention is to produce a construction of the character indicated in which the draft yoke is of a form suited for fabrication from wrought 11011- Generally stated, these objects are accomplished by forming the forward end of the draft yoke with a plurality of hook shaped portions and by providing the coupler with corresponding hooked portions adapted to interlockingly engage the hook shaped portions of the yoke, the cou ler and yoke being provided to the rear of the said hooked portions with further interengaging shoulders.

In the drawings illustrating the preferred form in which I contemplate applying the principle of my invention,

Figure 1 is a plan view of a pivotally connected coupler and draft yoke embodying the invention.

Fig. 2 is a side elevation of the structure illustrated in Fig. 1, the coupler head being omitted.

Fig. 3 is a vertical central section of the rear end of the coupler and the forward end of the draft yoke.

Fig. 4 is a detached plan view of the forward end of the draft yoke.

The coupler 1 is provided near rear end with oppositely disposed vertically extending pivot lugs or bosses 2 which, as shown, are preferably made of conical form to provide inclined undercut faces or shoulders for cooperation with correspondingly inclined or conical undercut bearin "faces or shoulders 3 that are respectively rinned on the inner face of-eachof the branches of the draft yoke 4 at the coupler engaging end thereof.

A short distance in advance ofthe pivot forming bosses 2 the coupler 1 is provided with oppositely disposed lugs 5 ofh ok-like form, each of which, as Well shown in Fig. 3, is preferably fashioned withthree conical faces 6, 7 and 8, respectively, whose axis is the same as that of the pivot lugs 2. The coupler en aging end of each of the bran ches or limbs o the raft yoke is of hooked orm and preferably of substantially U-shape, thus affording, in addition to the bearing face 3 for engaging the corresponding pivot boss 2, a plurality of shoulders 9, 10 and 11 which are adapted to engage the adjacent shoulders 6, 7 and 8, respectively, on the lugs 5 of the coupler. The portions of the hook shaped lugs 5 that form the inclined faces 7 and 8 of the coupler enter the corresponding recesses between adjacent shoulders 10 and 11 of the hook shaped forward ends of the draft yoke 4, said hooked portions of the coupler and yoke thus being interlockingly engaged in a manner enabling the lugs 5 to communicate draft forces to the yoke. The coupler en aging shoulders 9, 10 and 11 are preferabfy conical and their axis of curvature is that of the pivot lugs 2.

To connect the coupler and oke the latter is turned at right angles to t e former and the pivot lugs 2 are entered in the corresponding sockets at the forward ends of the yoke arms and brought into engagement with the curved undercut bearing faces 3. The yoke 4 and coupler 1 are then rotated about the pivot lugs 2 as a center until the parts come into normal longitudinal alinement. After this the ordinary followers and springs or other cushioning mechanism (not shown) may be assembled 1n the yoke in the usual manner.

I claim:

1. In a device of the character indicated, the combination with a draft yoke provided at its coupler engaging end with a plurality of oppositely facing substantially U- shaped portions each forming a plurality of coupler engaging shoulders on its interior and a plurality of coupler engaging shoulders on its exterior, and a coupler provided with shoulders res eetivelyyada ted to 00' operate with said 3 ioulders of tie yoke, all of said shoulders having a common pivotal 2. In a device of the character indicated, the combination with a draft yoke provided on the inner face of each of its branches at the coupler engaging end thereof with an undercut bearing face, of a coupler provided with pivot lugs each adapted to coiiperate with one of said undercut bearing faces, and interlocking means on the said yoke and coupler adapted to transmit draft forces from said coupler to said yoke.

3. In a device of the character indicated, the combination with EL'COUPlBI, of a draft yoke pivotally connected thereto, said coupler being provided with lugs each having a plurality of inclined faces and being; also provided With a pair of pivot forming bosses, and said yoke being formed with inclined faces cooperating with the said in clined faces of said lugs and being also provided with pivot forming means for engaging' said pivot forming bosses.

4. In a device of the character indicated, the combination with a coupler, of a draft yoke, said coupler and yoke being provided on each of their adjacent faces with a plurality of ii'iterengaging lugs forming means pivolally comm-ting said coupler and yoke, all. of said lugs beingprovided with conical faces having a common axis passing through one of said lugs.

5. In a device of the character indicated, the combination with a draft yoke provided with transversely opening hook shaped portions, of a coupler provided with corresponding hook shaped portions adapted to interlockingly engage the said hook shaped portions of said yoke, said yoke and coupler being also provided rearwardlv of said hooked portions with intorengaging shoulders.

ln testimoi'iy whereof I affix my signature.

ENOUH GEORGE. Jn.

Copies of this patent may be obtained {or five cents each. by addressing the Commissiener of Patent, Wuhingtun, D. C."

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