US1284415A - Draft-rigging. - Google Patents

Description

l. H. MILLIKEN.

DRAFT HIGGINS.

Arme/mou mso was. lsu.

lutcnicd Nov. lf2, 1918.

WIE:

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UNTED STATES PATENT ISAAC H. MILLIKEN, OF ASPINWALL, PENNSYLVANIA, .ASSIGOR T0 IMCCONWAY c TORLEY COMPANY, 0F PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENN- SYLVANIA.

DlAFT-RGGENG.

Patented Nev. 1a, 191s.

Application led August 8, 1917i Serial No. 185,043.

To all whom'z't may cof/wem.'

Be it known that l, ISAAC H. MILLIKEN, a citizen of the United States, residing Aspinwall, in the countypf Allegheny and Stateof Pennsylvania, have invented certain new and useful Improvements in Draft- Rigging, and I do hereby declare the foland exact description of 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 rigging for railway cars, and particularly to means for operatively connect- `in the stem of the car coupler to the draft yo e. The object of the invention is to provide simple, strong and durable means constituting an efficient and reliable mode of attaching the coupler to the draft yoke so as to permit easy assembly and disassembly of the connected parts. A further object of the invention is to provide a construction of the character noted which is especially well adapted for use where the coupler is designed to perform an extended lateral swinging movement when the car to which it is attached is passing around a curve.' These lobjects are accomplished, generally stated, by providing the coupler with a shouldered rear end, and by fashioning the draft yoke with a hooded forward end into which the rear end of he coupler may be inserted, these parts being connected by a pair of transversely extending key members which engage'the rear faces of the lateral walls of the hooded. portion of the yoke and also engage the corresponding shoulders at the rear end of the coupler, said shoulders of the coupler stem and the cooperating portions of the key members being Ycorrespondingly curved if it is desired to allow the coupler to have an extended swinging movement.

ln the drawings vkillustrating the preferred embodiment of my invention, the scope whereof is pointed outin the claims,

Figure l is a plan view of a draft rigging embodying the invention, the forward portion of the coupler and ythe cushioning atA units normally mounted within the yoke bein@ omitted.

`ig. 2 is a side elevation of the construction illustrated in Fig. 1l

Fig. 3 is a detail sectional view, taken on the line 3 8, Fig. 2.

F ig. d is a transverse sectional view looking forwardly, taken on the line fif-4, Fig. 2;

In the drawings, l indicates a car coupler and lL is the draft yoke. Except for the' features of construction set forth in the claims the coupler and draft yoke may be of` any desired form.

The rear end of the coupler is shouldered, being provided at its upper and lower sides with lugs or bosses 2 whose forward faces are preferablyv undercut and curved concavely, as indicated at 3, to form pivot bearings that are respectively adapted to coperate with key members 4 having correspondingly curved and beveled proiections or bearings 5.

The forward ends of the arms 6 of the draft yoke Q are widened, as at 7, and are connected by oppositely disposed walls 8, thus giving to the forward end of the draft yoke a hooded or box-like forni. lf the coupler is designed to swing laterally, the space between the walls 8, 8 of the yoke is made sufficient to permit the desired extent of lateral swinging. The rear faces of the walls 8 of the hooded portion of the draftV yoke `2` are preferably inclined or beveled adjacent the respective arms 6 of the yoke.

Theseinclined faces 9 are adapted to be engaged by correspondingly inclined faces l0 on the key members d when the mechanism is subjected to draft forces, the result being to offer resistance toA any tendency of the arms 6 of the yoke to spread or separate at their forwardr ends. i

The key members d interposed between the oppositely extending pivot lugs 2 of the coupler stem, and the rear faces of the oppositely disposed-walls 8 of the hooded portion of the draft yoke are each preferably provided with a forwardly extending portion or tongue 1l that preferably fills the space between the walls 8, 8 of the yoke, the

. the cushioning unit and the rear end of the or" the hooded end of the yoke.

Y end, and means draft yoke. When the buling force ceases to act the parte return to normal position, closing up this space. .in the preferred. embodiment o'my inventionv as heretofore de'- scribed the open space or slack corre spending to the compression of the springs of the cushioning unit would bo distributed at several points, part loccurring between the coupler l and thekey members Ll, a little occurring between the keys and the hooded end of the draft yoke, and some being between the rear end 18 of the yoke and the rear follower, thus preventing the full strain coming at one time on the mechanism when the parte return to normal position after a buil'ing operation. The vertical height of the rear end of the coupler is preferably substantially equal to the distance between the interior faces of the yoke arms 6, the rear end of the coupler being supported by the yoke rather than by resting upon the lower key member 1l. v'

.in assembling the draft rigging the rear end of the coupler l is inserted longitudinali into the hooded end ot the draft yoke 2 a d is pushed rearwardly far enough to Yallowi'cheVY keys e togen placed in front of the pivot lugs 2 of the coupler at the rear The coupler 'l is then' drawn forwardly to normal position, thus causing the tongues l1 of the 'lshaped keys 4 to enter the space between the lateral walls S of the hooded end or' the draft yoke and bringing the inclined shoulders l0 of the keys into engagement with the corresponding inclined portions of the rem' "aces ofthe walls 8 of the yoke. The spring unit (which may be the Well known arrangement of springsand followers) is then forced into position between the arms 6 of the yoke to the rear of the coupler and the assembled mechanism may then be applied to the underiraming of a carin the usual' mannen l claim: l. ln a disait' with a coupler baring a shouldered rear end., a draft yo? hai/'ir l )oiled forward o ely connecting l2 of the coupler is adapt-` with rigging, the combinationv said coupler and yoke, said means involi'finga, air of transverselyextending and longitu inally movable key members 'engaging the rear faces of oppositely disposed walls of the said hooded portion of the draft yoke, the respective key members also engaging. the corresponding shoulders at the rear ,end o t said coupler, and said coupler and yoke beingr relatively movable in boiling.

2. n a 'draft rigging, the. combination coupler provided with oppostely disposed shoulders, of a yoke, and means :for operatively connecting said coupler and yoke, said'means involving a pair of substantially lshaped keys adapted to be dissociated .from said draft yoke by beinv moved longitudinally with respect toV sai yoke.

3. ln a dra-ft rigging, the combination with a coupler having oppositely disposed pivot lugs, of a draft yoke, and a plurality of key members formln bearings for the said pivot lugs and a apted to transmit draft forces from said coupler to said yoke. 4. ln a draft rigging, the combination with a coupler provided with ,oppositely disposed shoulders on its rear end,.0f a 'draft yoke, and a plurality of key members operatively connecting said coupler and yoke, said yoke being provided with a plurality of' spaced members, and each of said key members being adapted to engage a plurality o1e said the forward 'movement of said keys ywith respect to said yoke. f

5. ln a draft rigging, the combination with a'coupler, ofa draft yoke\having a hooded forward end, and a plurality of sul adyke to trans rorces from the coupler-toysaid `yoke, the vertical height of the rear lend of the coupler being substantially equal to the distance between the interior faces of said yoke arms, and at least one of said shoulders on the coupler being adapted to engage the adjacentV face of 'one of the arms of said yoke.

,7. ln a draft rigging, the combination with a coupler having oppositely disposed undercut shoulders lat its rear end, of a spaced members to limitto form a hood ,at the being relatively movable longitudinally in buiiing, and a plurality of keys engaging the corresponding shoulders at the rear end of the coupler to operatively connect said coupler and draft yoke, said coupler being insertible longitudinally into the hooded portion 0f said yoke7 and the vertical height of the rear end of the coupler being substantially equal to the distance between the interior faces of said yoke arms.

In testimony Whereoi` I affix my signature.

ISAAC H. MILLKEN.

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