US1139875A

US1139875A - Draft-rigging for railway-cars.

Info

Publication number: US1139875A
Application number: US1934715A
Authority: US
Inventors: George A Johnson
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-04-05
Filing date: 1915-04-05
Publication date: 1915-05-18
Anticipated expiration: 1932-05-18

Description

G. A. JQHNSON.

vDRAFT Rlame FOR RAILWAY c'AHs. APPLICATION FILED MAY241913.v RENEWED APR. 5,1915. 1919,?5, Patented May18, 1915. 2 SHEETS-SHEET l.

WITNESSES G. A. JOHNSON. DRAFT RIGGINGFOR RAILWAY cARs.

APPLICATION FILED MAY 24| |913'- R'ENEWED APR-5| I9I5. 19139875, Pat'ented May 18, 1915.

WITNESSES QW ga UNITED vS'1 "A'i`ES PATENT FFCE. v GEORGE A. JOHItTSON, OF CHICVAG, ILLIllTOIS, AISgFNOR 110 "WILLIAM MIN-ER, OF CHICAGO, ILLiINOIS. l

DRAFT-mesme ron RAILWAY-CARS.

Specification of Letters Patent.

Patented May 18, 1915.

Application filed May 24, 1913, Serial No. 769,57'4. Renewed April 5, 1915. Serial No. 19,347.

To all w'hoiiz it may concern.'

'Be it known that 1,-Gnonon A. Jo'HNsoN, a citizen of the United States, residing at Chicago, in'the'county of Cook and State of Illinois, have invented a certain new and useful improvement in Draft-Rigging for i Railway-Cars, of which the' following is a full., olea-r, concise, and exact description,

-, reference being had to the accompanying tion.

drawings, forming a part of this specifica- Myinvention relates to improvements in draft rigging for railway cars.

r1`he object of -my invention is to provide a draft rigging-in which the compression resisting membeis are of high capacity in vbiiiiing movement, and of an easier action in pulling movement.

In the drawings forming a part of this specification Figure 1 is a sideelevation partly in vertical longitudinal section on line 1-1 of Fig. 2 of a draft rigging embodying my invention. Fig. 2 is a plan view partly in horizontal section on line @[2 of Fig. 1. Fig. 3 is a. plan view partly in horizontal section illustrating the position of the parts When under full compression in pulling movement of the draft rigging. Fig. 4 1s a plan view partly in horizontal'section illustrating the position of the parts when under full compression in buifing movement of the draft rigging.

Referring to the

drawings

5, 5 represent draft sills or parts of the car frame to which,

the draft 'rigging' is applied, A the'end sill, .7 the buer block, 8 the draw bar carry iron, 9 the tie plate, 10, 10 the front stop members having the

stop shoulders

11, 11, 12 the rear stop member, 13 the draw bar, 14 the draft gear, 15 the draft yoke. The draft yoke is forwardly provided With a hollow member 16 having an opening 17 to receive the draw bar, the said member 16 being provided with the lateral slots 18 to receive the coupler key 19 which passes through the draw bar, and also in preferable construction through slots 20, 2O in the front stop members and adjacent portions nal opening 2l extending through the rear member 22, which connects the

limbs

23, 23 of'the draft yoke. The draft gear 14.- ,comprises a shell Q1 closed at its forward end by the preferably integral plate Q5, said plate having the lateralextensions QG, 26 at either side of the shell, which extensions are adapted to engage against the front

stop shoul ders

11, 11 in normal position and on f0rtheir forward end against thefriction' shell and at 4their rear end against the friction mechanism. The friction mechanism coinprises the friction shoes'l, the wedge 32, and in preferable construction'the antifriction rolls The friction shoes 31 are preferably three in number, each having zin-outer.

friction face 31 adapted to engage the in ternal friction face 35 of the shell, and each having an inner .Wedgingface 36 preferably provided with an antifriction roll seat 37 to receive one of the antifriction `rollers 33. 'lhe wedge 32 is a block like member provided with a plurality Iof wedging faces 38, there being one for ear-h1 friction shoe. One of the antifriction rolls 33 is seated between each wedging face of the wedge and the adjacent inner wedging face of the friction shoe. rl`lie wedge 39. has a rearward projeo tion 3) which passes through the opening 21 inthe member 29. of the draft yoke 15, and engages at its rear face 40 irinormal position of the gear, as illustrated in FigA l of the drawings, and in buiing movement thereof, as illustrated in Figfl: of the drawings,` the rear stop member 12. The said rwedge is provided with a rearwardly opening recess 41 to receive the head 4.2 of a connecting rod 43, which `passes through a longitudinal perforation vlll in said'wedge and extends forwardly through the shell and tl'ieforward end thereof, whereiit. is provided with a nut 45 which is received within a recess 46 in the outer forward end of said shell. The rear 'stop member 12 is preferabl a one-pieced structure secured between the draft members, and is provided with the in- Wardly extendedilimiting stop shoulders k17,

47 at either side thereof. The rear end of the shell is adapted to engage against said limiting stop shoulders on rearward moveof. In front of lthe stop shoulder 48 the stop 'member 12 is provided with a space 51 within which the rear end of the draft yoke 15 is adapted to be received on rearward movement of the shell.

The rear ends of the friction shoes 31 engage against the inner face 52 of the rear connecting member 22 of the draft yoke. 0n forward movement of the draw bar the draft yoke is drawn forwardly by means of the coupler key 19,I and the friction shoes 31 are drawn within the shell by the forward movement of the draft yoke, the said shell being in engagement at its forward end against the front stop member, and

. through said forward movement of the friction shoes the spring mechanism 27 is compressed between the forward end of the shell and the said friction shoes. Onvsuch I movement it will be apparent that the wedge n slides' within the slots 18 in the shell moves rearwardly 32 does not spread the friction shoes or operate against the same. n

.An easyA start may begaven cars to which :this draft rigging is applied .by reason of the fact that in pulling movement ofthe draw bar the compression resisting members of the draft gear operation are the springs. Gn release movement the sudden .recoil of the spring is prevented by reason of the .fact that .its rearward movement is 'somewhat retarded by the drag of the friction shoesagainst the shell. On rearward movement of the draw bar the coupler key member 16 of the draft yoke, and the draw bar forces the shell rearwardly, the wedge is stopped against tho rear stop member, and as the the wedge spreads the friction shoes into rictional engagement with'the shell, the springs meanwhile are compressed until the rearward travel of the shell is limited as it comes into engagement .with thelimiting stop shoulders 47 of the rearstop member 12. In rearward or bult"- ing movementof the draw bar both -thc friction and spring members within the shell are 'in compression resisting action.

I claim 1. In a draft rigging for railway cars, in combination, a draw bar, a draft yoke, front andrear stop members, a shell, springs, frictiomshoes and-wedge within the shell, the

niagara yoke with a draft gear, the draft gear comprising a shell having a rearward o ening, friction shoes, springs and wedge wit in the shell, the springs being seated between the shell and friction shoes, the wedge engaging the rear stop member, said wedge being adapted to spread the friction shoes only on rearward movement of the shell.

3. In a draft rigging for railway cars, in combination, a draft yoke, stop members, a rearwardly opening shell, springs and friction shoes within the shell, a wedge interposed between the friction shoes and rear stop member, the forward movement of the yoke compressing the springs without spreading the friction shoes, and the rearward movement of the shell compressing the springs and forcing the friction shoes into spreading engagement with the wedge.

4. In a draftrigging for railway cars, in combination, a draw bar, draft yoke, stop members, a rearwardly opening shell, springs, friction shoes within thevshell, a wedge interposed between trie friction shoes and rear stop members, the draft yoke being in engagement with the friction shoes and provided with an opening for the passage of the wedge.

5. In a draft rigging for railway cars, in combination, stop members, a draw bar, shell and means for connecting the same, of spring mechanismvand friction mechanism within the shell, the friction mechanism including awedge adapted to directly engage the rear stop member, and to Spreadthe friction mechanism only on rearward movement of the draw har.

6. In a draft riggingfor railway cars, a draft gear comprising a. shell, springs, friction shoes and a wedge within the shell, in combination with al draw bar, draftyoke and stop members, the'wedge being seated against the rearystop member on rearward movement of the 'draw bar, and in such movement adapted to spread the friction shoes, the yoke being in engagement with the friction shoes on forward movement of the draw bar.

' 7. In a draft rigging for railway ears, in combination, a draw bar, a draft yoke connected thereto, front and rear stop members, a. shell, friction shoes, springs and wedge within the shell, the draft yoke being in engagement with the friction shoes, and adapted to compressA the springs between said shoes and the shell on forward movement of the draw bar, the said yoke having an open.- ing for the passage of the wedeeifiiefiiiedge 9. In a draft rigging for railway cars,

combination, a draft bar, stop members., a shell having a rearward opening, springs,

' friction slices and wedge within the shell,

means connecting the draw bar and friction shoes adapted to compress the springs on forward movement of the draw bar without wedging engagement between the friction slices and the wedge.

10. In a draft rigging for railway cars, in combination, a draw bar, stop' members, a

4shell, springs, friction shoes and wedge within the shell, a yoke connecting tlie draw bail and friction slices, trie wedge being seated independently of said yoke and adapted to spread the friction shoes only on rearward movement of the shell.

11. In a draft rigging for railway cars, in combination, front and rear stop members, a draw bar, draft yoke, friction shell, springs, friction shoes and wedge within the shell,

lthe draftyoke engaging the friction shoes,

the wedge passing through said yoke and being in spreading engagement .with the friction shoes only on rearward movement of the shell, the rear stop member being provided with shoulders to engage the shell in its rearward movement, and. limitv the compression of the parts within the shell.

12. In a draft rigging for railway cars, the combination of stop members and a draft yoke With a draft gear, the draft gear coinprising a shell having a rearward opening, springs, friction shoes and wedge within theKshell, the draft yoke directly engaging the friction shoes and the wedge directly engaging the rear stop member, the wedge being adapted to spread the friction shoes only on rearward movement of the shell.

, GEORGE A. JOHNSON..

Witnesses: Y

ELiiaNoR L. NASH,

JOHN A. MARTiNnUs.