US849561A - Friction draft-rigging for railway-cars. - Google Patents

Description

PATENTED APR. 9, 1907.

J. F. oGoNNoR. FRIGTION DRAFT RIGGING PGR RAILWAY GARS.

APPLICATION FILED DBC. 19. 1906,

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UNITED STATES IAIIINT OFFICE.

Joi'iN FfoooNNoa, or

Cl-IICAGO, ILLINOIS, ASSIGNOR TO W. I-I. MINER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION'OF ILLINOIS.

Specification 4of Letters Patent.

Patented April 9, 190'?.

Applicatie filed December 19,1906. Serial No. 348,549.

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Be it known that I, JoiiN l?. OCoNNoii, 'a' citizen of tle United States, residing in (,hi-

cago, in the county of Cook and Stai e of Illii nois, have invented a new and useful Iniprovemeiit ltailway-Cars, oi which. the following is a specification. v

My invention relates to fric-tion draft-rigging for railway-cars.

In tine practical use of friction draftgear dii'licully or objection llas been experienced "owing to the tendency of tl..e spreader or loarl-distributing niecimnisin to slick or to be.

uncertain or irregular in action and violent in `movement when motion begins, thus greatly reducing the eil'ective cushioning ei'- .fect or absorption of work by the frictionsurfaces.

The object of niy invention is to provide a for overcoming this ob3eci practical means.

. tion or di'li'iculty and for enabling the friction devices to uniformly and reliably exert or produce a positive predetermined resistance or cusl"oiiing cll'ect, while at tliesaiiie time making the draft-rigging of a simple, strong, ellcient, and durable construction. n

My invention .consists in the means I ein ploy to practically accomplish. tl object or result-that to say, it consists, in coiiiiecl tion with the draw-bar and its yoke and lthe co peratin g stationary stops on the car iranieor sills, of a direct-iwt-ing spring arranged lon gitudinally ofthe drawfbar, a longitudinallyiiiovable Jfriction shell or case, and a pair of coperating irictioii-bloels having frictionfaces in sliding' frictional engagement with the friction-.shell and one bearing againstI the spring and the other against the draw-bar,

and an intermediate friction-block having .a` friction-face in slidinff i'rictional engagement with the friction-snel and inclined Wedging spreader-faces cooperating with inclined or Wedging spreader-faces 4on said first-inentione'd friction-blocks, and antifrictioinrollers interposed between the adjacent or meeting spreader-faces of the friction-blocks t'o i I prevent the friction-blocks from sticking and to cause the same to properly and uniformly act.

.My invention also consists'. in''ftlie novel` construction of parts and devices and inl the novel combinations of parts and devices herein shown and describe iii lirictioii Dral't- Rigging for' .p my invention.

In the accompanying drawings, forming a part of this specification, Figure 1 is a side elevation, partly in vertical longitudinal section, oi a friction draft-rigging embodying in horizontal section. 'F ig. 3 is a cross-sec tion on line 3 3 of Fig, 1.. Fig. 4 is a detail perspective View of 'one of ythe terminal fric- Fig. 2 is a plan view, partly ton-blocks- Fig. 5 is a detail perspective view of the intermediate friction-block, and Fig. 6 is allongitudinal sectional view illus# t-iating a moditication AIn the drawings, A represents .the .iranie-v pieces of Tse car to which the drei` 1. rigging is applied, the saine being, as illustrated in the drawings, metal center sills. B is the draw-bar; B', its yoke; Oc, lon gitudiiiallyairranged direot-acting draft-rig ging springs, and D D the stationary stopsI 'of the draft-rigging, .which are secured to the center sills or car-framework, preferably by rivets d.

ll F are the front an d rear followers, adapt-- ed to alternately engage the stops D D and' l D D and cooperate with the draw-bar 'and its yoke and the draft-rigging spring.

It is a longitudinally-movable friction shell or case, preferably made integral with the rear follower and .having inside parallel friction-faces f and exterior strengtleningribs jsurrounding tlie l'riction-lilock-iiiclosing portion of the shell. The friction shell or. case F2 is cutaway at its top and bottoni walls adjacent to the spring, and thus fun nishcd with openings f-, through one of which the spring C may be inserted or re-. moved. The shell F.2- isl provided on each side at its bottom with a laterally-projecting guide or ilange {`3 to engage the removable bottoni or tie p ate I-I, which is secured by bolts 4li to .the center sills or other stationary frame-pieces to which the draft-rigging is ap- "puta G G are a pair of terminal friction-blocks having friction-faces g g in sliding frictioiial engagement vwith and parallel to tlie cooperating 'Friction-face f of the friction-shell F2 and having inclined or wedging spreader` faces g* and square end faces g2 for engage- I'nent with the front follower and the front 4end of the spring O, respectively` G is the ntermediaterictioii-blook, the saine having a friction-face g3,.parallel to. and in sliding frictional engagement with the lower frictiontion with the draw-har and its yolie, of a 'rocking (ir-tilting movement of ihe inter-` facef of the friction-shell F. This inter1ne l rolling action upon both blocks with which it diate friction-block G is also provided with in contact substantially as speciiied. two inclined or'wedging spreader-facee g g, 2. ln a friction draft-rigging, the combinacoperating with he inclined or Wedging tion with the draw-har and its `yoke, of :i spreader-faoes g of the terminal frietioni direct-acting spring, followers, Stops for the blocks G G. followers, a longitndinally-movahle friction- K K are antifriction devices, preferal'ily i shell, a pair of terminal .sliding frietionrollers, interposed between the inclined or i' liloels having inelined or edging Spreaderspleader faces on the intermediate frictionfaces an l' an intermediate sliding frictionblock G', and the terminal friction-blocks GIG -v block having two inclined Yor wedging are each furnished with cooperating saddles E spreader-faces and antifrietion-roller interor shoulders for maintaining the rollen` j posed between the terminal friction-blocks Kin position. and intern'lediate frietion-hloek. said termi- In. the modification illnst'ratedin Fig. 6 nal lrietion-hloeke and lmid intermediate the intermediate friction-block (l2 has its inf lrictii'in-hloek havimgr eopera:ingl saddles or clined or Wedgingspreader-faces parallel to :shoulders to keep the antifrietion devices in each other instead of at an angle to each i plnee,eaehrollerhavinga rollingaetionnpon other, and the cooperating terminal frictionf hoth hloeks with which it is'in eontaetsuhblocks tend to impart a slight tiltingvniovt l stantiall)Y is specified. ment' to the intermediate friction-block, and I3, In a friction draft-rigging, the eornhinathus force both of'its Sliding friction-faces fion with the draw-har and :i direct-acting' .into frictional engagement-with the eoperspring in line with the draw-har and a fricatinir friction-face of the friction-shell F. tion-shell, 'of a pair of terminal friction In -t iis. modified construction owing to thisblocks and an intermediate frietionhlock Slight tilting nipyement of the intermediate a 1d :intifrietion-rollera interposed between friction-'block the 'Wear upon the frietionsaid interniedwie bloei; and said terminal faces of the intermediate friction-Mock tends l friction-Moeke. eaeh roller having a rolling; to throw them SlightlyY ont of parallelism. aetion upon hoi'h liloeks with whieh it is in with each other, although this :ie-tion is not l eontaet snhstuitizillyas'speeified. objectionable, as the spreader inoven'ient of 4. ln n friction draft-rigging, the. eonihinae the friction-blocks is very slight and as the -ti'on with the dra\\'-l mr and a direct-acting spring in line with the draw-har and a frio tion-shell of a pair of terminal frictionlnediate block is consequently also very slight. :ihloel-s and an intermediate friction-block .l claim` ,and antifrictiomrollere interposed between In a friction draft-rigging; theoolnhinasaid intermwliat-e liloek and said terminal frietion-hloeli's, said intermediate.and terminal frietiondiloeiie having' eoi'perating Shoulders to engage the rollers, each rollerhavingr a rolling netion npon hoth lblocks with which it is in eontact substantially specified.

dlrect-acting spring, followers, stops for the followers, a longitudinally-iinovahle. friction'- Shell, a pair of terminaleliding friction-Moeke lia-ving* inclined or wedging spi'eadewfaeeo and an intermediate. sldig friction-Mocky' having two nic-lined or w (Igino spreaderfaces 'and antifrietioneroller interl'iosed he. l-Vitnesses:

tween the. terminal friction--hloeks and interll. M. MUNDAY, mediate frictim-block,l eac-h roller having a i IGDMUND ADoooK.

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