US1136038A - Railway draft-rigging. - Google Patents

Description

l. F. OCONNOR.

RAILWAY DRAFT RIYGGING. Avrucmo'n msu mm1. 9 i914.

Mmmm., Patented Apnzo, 1915.

g f. i Q W 'f W A I I 4 INVENTOR.

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f fil/ly" invention... relates lto fiinprovements.l

. A carcasa. retainers.,-

ee .afname aia-.ramas a. enamel, -ai

citizen of the United Statesyiresiding at .Chipage,`iiij. the.eonntyof Cook and` State of lll-ineis, have 'iily-eletedv 'a certain. new l and `elfiil .lmprovementin' Railway "DraftJfl-ignciseI- and eX-act description, reference be- 'forining' v afp'art :of this specification. 1.

for-railway cars. .Thefobject'of my* inventionA is. to' pr'ovide a' 'fifi sreratbwf Alhtrltlie'f drawings forminglda' part of this .speoiification,'""lieureil fis aside elevation',

partlyintvertica longitudinal sectionE of a'.

draft' lrigging' embodying i my v".intention i3-ill i l Fig.;Qis-.aplan viemfp'artly in' horizontal sectionyionlinetil'of ig. l; Bis' a crossfsection taken on lined-f3 of Fig. l.

l Referringtonthe drawings, the numerals 'indicate-draft vsillsor partsA of the car freine to.; which thed'ra-ft rigging isapplied; sideplates for stop-members secured to -the'fjsil'ls and having front-stop shoulders 65.6, rear' stoprshoulderslY-J?, front limit- `vop-slicnilders f8-'-8', and rear limiting shoulders 9;;9.- I The .numeralilO designates a draw-bar, onlyntli'e-rear end thereof being shown in thedraivinggand having a draft-yoke ll keyed theretoby. the. key l2 passing through the Ahead'l of the yoke 'and through the diayvbarythe key being extended at its ends through =t e elongated longitudinal slots li-fl in thea'adjacentportions of the sider Vplates and'draft sills. The tie plate l5., se-

40 cured' Ato the draft sills preferably by the ,bolts 16e-16, lis adapted to support the draft gear Til-Within the draft yoke. rl`he draft gear 17 lis adapted to be engaged. at its respective front and rear ends by the front 'follower 18 and the rear follower 19. The draft'gear comprises a shell 2O having friction `elements 21 'and spring elements 22 mounted .therein .The friction. elements v .comprise the wedge 23V adapted to spread the 50 friction shoes .M -24, and having anti-fric tion rollers 25 mounted between the Wedging faces of the wedge vand the adjacent Wedgingl face .of each friction shoe. The friction shoes are preferably three in num- 525 ber, and' in annular arrangement Wthinjthe aanstaan nn'ariraaresrne;

'applicatiest'slfwh'a. isla .serial rassegna {Aha-dito@ "the 'accompanying drawings,

j shoes are lextendedange which engages against gging for railway arsofeiiclent'- .shelh the shell being :preferably cylindrical in snaps, 'having theholloyv .forwardly` openy'lng chamberi v l y ments Within 4the 'an o`uter spring 27 andlaninner spring 28 .lnested therein. r .ef'whioh thefollowing is 'a'- ,fulh clear,

therein. The. spring ele# shell preferably comprise A clip -or springseat 29 having a rearwardly opening recess therein isunounted betweenthe frictionelements and the springs Qlland' 28.. rIhesaid spring seat engages theinwardlyfproject# ing `shoulders '31 with wh'ichathes friction rovided, and .has an outwardly the. rear ends of rthe friction shoes. The outer spring 27 is forwardly seated.y against the flanges l2-of the saidfspring s eat`f29,I and is rearwardly seated againstthe `shell 20. A; connecting rod 3a .passes tln'ouglil the wedge" 23, the spring seatZQand through the rear end of the shell where` it is provided with a nut which is received within rangement of the parts being mounted within the recess 30 in the spring seat or clip 29.

In the assembling of the parts of the draft gear,the spring 40 is preferably placed under an initial con'ipression, thus exerting a.

.pressure against the shoulder 39 of the con necting rod and holding the spring seat 29- in engagement against the friction shoes.

'The pressure of the spring 40 against the shoulder 39 of the connecting rod exerts a 'A rearward pull upon the wedge 28, thus holding the parts of the friction .mechanism within the shell in close relation so that upon initial movement of the friction mechanism the parts thereof will operate immediatelyjn aifordingmfrictional resistance to 'the draW-'bars movements. in this arrangement, it Will'be observed that While the springs 27 and 28 may be placed under an linitial compression when the parts of the draft gear are assembled, it is not necessary sc tofdo Ain order Yto' hold all .the 4parts of the gear in closely 'asserni ledfrelation'v -or' to take up thewea'r ofthe parts' thereof.

These functions will -be performed. by the j spring 0in .connection with the seating thereof upon the connecting. rod itself, and the ' springs 27 and 28 may be mounted with-l in-:the'shellswitholit placing any initial compression thereon. By the use of the springl 40-in 'the relation with the other parts shown and described herein, springs of great s tii- 'nessand hlgh capacity may be used without placing the springs under an initial com-h pression, thereby enabling the hea high \,capacitated `springs to' be used for a Ording aneasierfinitial movement, and thereby in-4 suring an easierv starting of trains 'than tion.

pression would be assured or` affordedwere very stiff springs used and placed under initial coi'nfor the purpose of holding the parts Within the'shell in closely assembled rela- I'l claim: v

1. In adraft gear for railway-fcars, the

Acombination with ashell, of friction shoes, a wedge necting and the and springs Within the s hell, a conrod'engaging'the shellat one end wedge/ at the other end, the connecting rodbeing provided intermediate its with a shoulder, and one of the springs t e lfriction shoes.

2. In a draft gear for railway cars,- the. lcombination Awith a friction shell, of fric..

being seated between said shoulder andl tion shoes and a wedge within the shell, a'v

spring seated between the shell and friction shoes, al connecting rod engaging the wedge`4 spring seated between said shoulder and the shell-,and a further spring seated between said shoulder and the friction shoes.

3. In a draft gear .for railway cars,l`the combination with afriction shell, friction shoes and a wedge within the shell,of a con'- necting rod engaging the shell at one end at oneend, and the shell .at the'other end,';' a shoulder upon said connecting rod, s.

and the wedge at the other end, said-cond" necting lrod being provided with `a seat intermediate its ends and rigid thereon,. and aspring interposed between said seat and the and held'under initial com- 50

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