US1073242A - Draft-rigging for railway-cars. - Google Patents

Description

G. A. JOHNSON.

DRAFT RIGGING POR RAILWAY GARS. APPLICATION FILED JAN. 13l 1913. 1,073,242. Patented sept. 16,1913.

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Patented Sept. 16, 1'913.

INVENTOR- afge/l @j e. A. JOHNSON.

DRAFT RLGGING EUR RAILWAY GARS. APPLIGATIQN FILED JAMAS. 1913.

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WITNESSES lUNITED STATES .PATENT OFFICE.

GEORGE aironNsoN, or olrcac'ro;` ILLINOIS, ASSIGNOB re wILLrAM HLMINER, or

. cHroeqo, ILLINDIS..

speciaeanon of Letters Patent. Patented Sept. `Application filed January 13, 1,313. Serial Nol 741,701. Y

To CLZZ whom t may concern.' Be it known that I, Gnoaon A.. JoirNsoN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, 'have invented a certain n ew. and useful Improvement in Draft-Rigging for Railwayars, of which the following 1 s a full, clear, concise, andexact descrlptipn, reference being had to the accompanying drawings, forming a part of this specification.

My invent-ion relates to improvements in draft rigging for railway cars.

The object of my invention 1s to provide a draft rigging of relatively low capacity on forward movement of the draw bar, and

relatively high capacity in buiiing movenient of the draw bar.

It constitutes an improvement upon my invention disclosed in my copendmgapplication, SeriafNo. 725,603 filed October 14, 1912. y

In the drawings Figure 1A 1s a side elevation'partly in centrallongitudinal section on line 1--1 of Fig. 2 of a Adraft rigging embodying my invention. Fig. 2 is a plan .View partly in horizontal section on line 242 of Fig. 1. Fig. 3 is a side elevation partly in central longitudinal section showing the position of the parts of the draft rigging on full forward movement of the draw bar. Fig. 4 is an elevation partly in central longi# tudinal section showing the parts of .the draft rigging under full compression in bu. Fig. 5 is a perspective View of the follower, and Fig. 6 is a perspective View of the clip.

Referring' to the drawings 5, 5 represent center sills or parts of the ear' frame to which the draft rigging is attached, 6 the end sill, 7 the buffer' block, 8 the draw bar carry iron-all of usual construction.-

9 represents a draw bar having the lateral slot 10, 11 a yoke member, 12, 12 forward stop members suitably secured tothe center sills, 13 the coupler key. The voke member is forwardly provided with a hollow hea-d 14 to receive the .draw bar, said head having lateral slots 15, 15 for the 'passage of the coupler key 13 therethrough. The stop members and center sills are provided with the slots 16, 16 suitably arranged to permit the passage of the coupler key therethrough, and longitudinally extended to 'permit the movement of the said key therein 1n buff and,

pulling movement of the draft rigging.

Mounted between the center sills is the Compression resisting member'l?. The said compression resisting member 17 comprises a shell 18, and spring elements 19, and friction elements 20 within the shell. The shell .consists o f a spring cage 21, and a friction case 22. The spring cage 21 1s preferably rectangular in shape, and having a hollow interior 23, and closed at its forward end by the preferably, integral' plate 24,. which serves as a front follower, and in normal position or forward movement of the gear` Eengages the Afront stop members 12, 12.

The friction case 22 is at the rear end of the'shell, and is preferably integral there-- with. In preferable construction it is oylindrical in shape,'having the internal friction face 25, -and is open at its rear end 26. Y

Withinv the friction caseare the friction ele7 ments 20, which consist of a wedge 27 and annularly arranged segmental friction shoes 28, vpreferably three zin'gnumber,A the said shoes each having a friction faceV 29 for en-k gagement with the internal friction face 25 of the friction shell, and each being pro- .vided on the inner surface with a wedging face 30 between which and the wedging face 3 1of the wedge is interposed the anti-friction roller 32. y The wedge 27. is provided at its rear end with a recess 33 to receive the nut 34 of the short connecting rod 35, which through said wedge'. and through the clip 36, the head of said 'rodheing disposed within the recess 37 inthe forward face ofthe clip 36. The clip 36 serves withthe connectin 4rool to hold the friction members in assembed position.

Within the spring cage and between the spring elements therein and the friction ele ments within the friction case is disposed the follower 38 comprising a transverse plate 39 and a boss @extended rearwardly therefrom. The boss 4Q is of suitable size and shape to engage the forward ends 41 of the friction shoes on buffin'g movement of the draft rigging, and in preferable construcion is of a general. cylindrical shape` It is provided with a vertical slot 42 to receive the preferably Hat vertical key 43, which passes through the slots 44, 44. providedin lthe upper and lower portions of the spring cage, and also passes through vthe slots 45, 45 lprovided 1n the upper and lower limbs 46 and 4 7 respectively of the yoke 11. The

passes elementsare seated at theirforward'ends lower limbvl? of the yoke rests-:'uponthe bottom tie plate 48, thussupports .the gear between the draft sills. The uppertie lplate 49 is 'suitably secured between the `yoke.

' The spring elements 19 in )referable con draft sills teclear theupper limb-46 ofthe .struction comprise a pairfo outer springs 50, 50 in twinarrangement, each witlan inner'spring 51 nested within.` 4The-'spring against the plate 24 of thespring cage, and

at their: rear ends against the follo`wer'38, Thegslots 411,l 44 in the sprin cage are suitably longitudinally extend'- forward movement 'of the ey 43 therein to compress thel sprinl elements on forwardv movement ofthe'yo e. It will be apparentthat 'on-forward move,

ment of the4 draw bar4 9;' th-shell f8 being held against forwardmoyement by theV forwar stop 'membe'rs12g' 1-2, the yoke- 11 .through 'the connecting key 43 draws the .follower 3 8'v forward against the compression',

resisting spring. elements '19,. and without bringin into -action'the friction elements 20.

The s ots 1 5, 15 in the yokehead are suiiiciently extendedgrearwardly to permit the rezir'ward moyement of the coupler' 'key 13.I

therein onjl buingmovement of `the draw bar. On such buing movement the draw bar engages the shell 18, and lforces it reari wardly. The wedge 27'is in engagement `with thel .rear stop member 52, which in preferable construction is a block secured betweenn the center sills, and the friction case 22 is moved rearwardly in theinclosedfriction elements, the follower 38 through its y boss 40 engages the -friction shoes, andthe spring elements are thus brought into action" with the friction elements.

Iclaim:-" f 1. In a' draft rigging for railway cars,

Y draft members, stop members, ay draw bar,

l 'tion elements and spring elements withln ment of the draw bar.

and a yoke'in combination with ashell, fricthe shell, a follower between said elements,

'and connected'to the draw bar, andadapted to compress the spring elements against the shell onv forward movement of the draw bar, and ,to operatively connect the spring .and friction elements on rearward`move- 2. Ina draft' rigging for railway cars, draft members, stop members, a draw bar,

. and a, yoke',A member in combination with a 'compi/Cession resisting member comprising a. shell, friction elements and spring'elements within the' sliielh a. follower betweensaid elements', a key connecting said follower to the yoke member, the sprin elements beg ingfseated between said fol ower `and the jforw'ardendof the shell, and the vfollower being adaptedl to compress the spring elements on :Eorwardpmovenf'entpf the draw to permit the` br; j

3. Infa draft rigging for vrailway cars, 'draft-members, stop`r members, a draw bar,

.stop members, and "spring elements within the sprmg cage, friction'shoes and awedge within said case, said wedge being adapted elements, and connected to the yoke, the said follower being adapted to compress the shoes v'in bar.

4. In a ber and a draw bar, in combination with a the. shell, a follower disposed between the friction elementsl'and the springs', said. follower being connected to the -yoke member bar, and to engage the springs and friction elements -1n their compression res1st1ng ac- 5.'."In `a draft` rigging .for railway cars, draft members, stop'members, afyoke member and a draw bar, in combination with a.

theA shell, a follower'disposed between the friction elements and the springs, said fol- "and adapted to compress the springs against bar, and to' engage the sp'rings and friction *elements in their .compression resisting acsaid follower havin sliding connection with the draw bar.v

- 7. In a'railwaydraft rigging, a draw bar,

combination with a shell having at its forward end a'- spring cage, and at its rear .end

bar, and engage both friction and spring elements in rearwa'rd movementof the draw and a `yoke member in combination with av compression reslstmg member comprising a.

said cage, and 'a friction case connected tol shell,'springs and friction velements within.

tion on rearward movement ofthe draw. bar.=

the shell on forward movement of thedraw elementsin their crhpression resisting ac` 'ber and a draw ban, in combination with a stopmembers, draft members and a yoke, in'

lsprlng cagev adaptedlto engage the forward vto engage the rear stop member, a follower between the friction shoes and the spring.

,spring elements on forward movement of the' draw "bar, and "to engage the frictionrearward movement of the drawl and 'adapted to compressthe springs against the shell on forward -`movement of' the. draw shell, springs and friction elements within .lower being connected to the yoke member bar,4 and to engage'thesprings and friction tion .on rearward movement ofthe draw bar,I i

through said yoke aj draft 'rigging lfor railway-cars, draft members, stop members,- a yoke mempress the springs on forward movement ofthedraw bar without bringing the'friction elements into'aotion. .A

I 8. In a railway draft rigging, a draw bar, stop members, draftmembers and azyoke',

in combination with a shell having at its forward end a springfcage, and atits rear enda friction case, springs within the spring cage, and fric-tion elements inthe friction case, a follower between the springs and friction elements, the said followerbeing connected to thedraft yoke, and adapted to compressthe springs on forward-movement of the draw bar, and to engage the springs and friction elements on rearward movement of the drawbar. l

bar, and a compression resisting memben comprising a lonvitlidinallyfmovable shell,

spring elements, friction-shoes and awedge wit-hin the shell, the wedge bein stationary and engaging therear s top inem er.-

10. In 'a railway draft rigging, a draw bar, front and rear stop members, a yoke, and a longitudinally movable shell, a follower, springs, friction shoes and a wedge within the shell, the said follower being connected to the yoke, and adapted to compress the springs against the forward end of the shell on forward movement of the draw bar without bringing 'the friction shoes on rearward movement of the draw bar.

r GEORGE A. JoHNsoN.

A 'Witnesses: 9. In a railway draft rigging, draft members, front and rear stop members, a'draw ELEANOR L. NASH, JOHN A. MARTINKUS.

'into action, the wedge b'eing stationary, and

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