US1775616A - Buffer and draft device - Google Patents

Description

Sept. 9, 1930. D. s. BARRows 1,775,616

BUFFER AND DRAFT DEVICE Filed Dec. 8, 1926 2 Sheets-Sheet l Sept. 9, 1930. l D. s. BARRow 1,775,615

BUFFER AND DRAFT DEVICE Patented Sept. 9, 1930 UNITED STATES,N

PATENT OFFICE DONALD S. BARROVJS,IOF ROCHESTER, YORK, ASSIGNOR TO THE SYMINGTON COM- IPANY, 0F NEW YORK, N.VV Y., A

CORPORATION OF MARYLAND,

BUFFER Ann DRAFT DEVICE Application filed .December 8, 1926. Serial No. 153,268.

This invention relates to underfraines for railway rolling stock and, more particularly,

to a buifer and draft device'adapted for cony nection with an associated Car as a unit and designed for economical manufacture.

The principal object of `my invention, generally considered, is the provision of a buffer and draft device adapted to replace the usual spring buffer housing, striking casting and cheek plates, with. or without'front draft lugs, on the underframe of a car, said device being formed not only forincreased strength and adapted for being rigidly connected in the` desired location on the car, but being so formed that moulding conditions are Virnproved whereby the cost of manufacture is greatly decreased. Y

An object of my invention isthe provision. of a buffer and draft device formed generally as an upper casting serving as a. spring buffer housing and a lower casting serving as astriking plate or couplery stop with integrally connected cheek plate portions adapted for rigid connection with associated center sills, said cheek plate portions .being formed at their inner edges with or without inwardly extending draft lugs, the upper portions of said cheek plate portions being rigidly connected by an upper shelf portion whichv also serves for supporting and rigidly con. necting with the base of the spring buifer Another object of my invention is the provision of a buffer and draft device comprising upper and lower members each integrally formed and providedwith substantially horizontal web portions'adapted to registerand be connected by a relatively large number of rivets, the upper casting having portions for housingassociated buffer springs and stems and upstan'ding web portions Yadapted for .connectionl with the end sill and other transverse members of the car Vunderframe, said lower portion being formed with a strikV ing plate, transversely spaced cheek plates adapted for rigid connection with associated center sills, and draft lug portions theron, and alternatively formed VVwith an integral' carrier iron portion.

A further object of my invention is the provision of a novel housing adapted for the reception of buffer springs andA stems and formed with a base portion providing a large rivetingarea for connection with an underlying part of the car underframe, the rear edge of said base portion being formed with an upstanding web portion adapted for Con'- nection with the end sill and other parts of the car underframe.

A still further object of invention is the provision of an integral striking casting provided with portions serving as cheek plates and front draft lugs, said cheek plate portions being connected at their upper edges by the shelf portion adapte-d to support and be rigidly connected to an overlying asbeing provided with forward extensions vat either side thereof for increasing the riveting area, the lower edges of said cheek plates being alternatively connected by an integral coupler carrier iron.

Other objects and advantages of the inven-V tion relating to the particular arrangement and combination of the various parts will become apparent as the description proceeds.

Referring to the drawings illustra-ting my invention, the scope whereof is defined by the appended claims: l r

Figurefl isa plan of a preferred embodiment of my buffer and draft device, a portion thereof beingshown in horizontal section on the linel---l of Figure 4, and fragmentary portions of associated underframe members being illustrated, as well asiassociated draft rigging, diagrammatically illustrated by dot and dash lines.

Figure 2 is a longitudinal section view onV the `line 2-2 of Figure l.

Figure 3 is a front elevation of the form of device shown in Figures l and 2.

Figure l is a longitudinal sectionalV View on the line 4-#4 of Figure 3. i

Fgure 5 is a partial longitudinal sectional view corresponding to Figure 2 but 'showing a modification.

.Referring to the drawings in detail, like parts being designated by like reference characters and first considering the embodiment of my invention illustrated in Figures l to 4,

' sociated buffer housing, said shelf portion A 'thebuifer housing with the inclusive, there is illustrated a buffer and draft device generally designated by the reference character 1. In the present embodiment, the device 1 consists of an upper buffer casting or spring buffer housing 2 and a lower striking casting or combination coupler stop with cheek plates and front draft lugs 3. These members 1 and 2 are rigidly connected by means such as rivets l extending through horizontal web portions thereof.

For the purpose of providing a relatively' large riveting area for securely connecting g striking casting 3, the top web or shelf portion 5 of the striking casting 3 not only extends between the cheek plate portions 6 rearwardly of the striking plate or coupler stop portion 7 but is continued to either side of said cheek plate portions and there may be extended forwardly of the striking plate as indicated at 3. The rear edge of the web 5 is preferably curved, as illustrated particularly7 in Figure l, between the cheek plate portions t3 to economize material. The base 9 of the spring buffer housing 2 may be formed generally similar in plan except that it terminates forwardly of the rear edge of the upper web or shelf 5 of the striking casting member 3 and is continued upwardly as a substantially vertical web 10 providing a relatively great area for adequate connection with and reinforcementof the end sill 11. At a height corresponding to the top of the end sill 11, the web 10 is preferably extended horizontally as dicated at 12 for a. distance corresponding to the associated buffer block or adjacent part of the car 13. From thence a vertical web 111 is preferably extended upwardly to a height corresponding to the diameter of the buffer spring housing portions as well as the vertical dimension of the associated car part 13.

Each spring and stem housing portion 15 may be formed, as illustatedl generally cylindrical for the reception of the usual springs and stems (not shown), which stems, as wfll be understood, may be connected in a well known manner with the buffer plate (not shown) which, when the car is coupled to another car, is adapted to engage a corresponding buffer plate thereon and close up the space between the underframes. he spring housings 15 are not only connected bv the base or lower web 9, the upstandingwebs 10 and 111 and the connecting web portion 12 but the front edge of the web portion 9 is preferably formed with an upstanding web 16 extending only between the near sides of the buffer housing portions 15. F or rigidifving the construction, the upper edgebf the web 1G may be formed with a horizontallvturned web or bead 1'? and the web 14 may be likewise formed with a horizontally-turned forwardly extending web or bead 18. For rigidly connecting the webs 10 and 16, longitudinally extending upright webs 19 are preferably provided as indicated.

For properly holding the buffer keys (notl shown), ledges or shelf portions 2O are preferably provided adjacent the key slots 21, the inwardly extending shelf portions being terminated as illustrated shortly on either side of the key slots 21. The outer shelf portions 20, however, may be extended rearwardly to join with the outer ends of the web portions 14- thereby greatly rigidifying the construction at these points. That portion of the web lll forming the inner walls of the spring housing portions 15 may be provided with centrally positioned forwardly extending bosses 22 serving for centering the buffer springs. The construction beneath said bosses 2O is preferably rigidified by diverging web portions 23.

For securely and rigidly connecting the buffer housing member 2 to the striking casting member 3, the registering web portions 5 and 9 are connected by a plurality of rivets 4. 'In the preferred embodiment illustrated, two transversely extending rows of rivets and two longitudinally extending rows of rivets, said latter rows being spaced laterally with respect to the transversely'extending rows of rivets, are provided, aggregating twelve rivets in all, although it is obvious that a greater or less number of rivets may be used depending upon the size of the rivets and the necessary strength of connection between the parts` Considering now the construction of the lower member or striking casting 3, it will be seen that the cheek plate portions G thereof provide adequate riveting area for connection with the associated center sills 24. Said cheek plate portions are, in the present embodiment, each adapted for connection with the associated center sill by means ot' two vertically space(`L rows of rivets 25, each row comprising live rivets although it is obvious that l do not wish to be limited to the number of rivets employed. Said cheek plate portions are illustrated as formed with slots 26 adapted for receiving an associated draft key 27, said key, as is usual, serving for connecting an associated coupler Q8 and yoke 20. The rear edges of said cheek plate portions are preferably formed with inwardly extending flanges 30 serving as draft lugs cooperating with a front follower 31 and cushioning mechanism 32 illustrated diagrammatically by dot and dash lines. The draft lug portions 30 are preferably braced and reinforced with respect to the cheek plate portions 6 by means of triangular web or gusset portions 33.

In the present embodiment, I have shown those portions of the web 8 extending forwardly of the striking plate portions 7 braced with respect to portions 34 depending from sald striking plate portions 7 by means of lil() substantially triangular web or gusset portions 35. Said depending portions 34 are formed, in the present embodiment, with pockets 36 forming bearings for trunnions 37 on carrier iron supports 38 swingingly connected with a carrier iron 39, and adapted to serve for centering the associated coupler 28.

It will be noted that the reinforcing web 16 serves, in effect, as a continuation of the striking plate portion 7 thereby improving the appearance of the combined member and increasing the strength thereof. As with the webs 9 and 16, the web 5 and the striking plate portion 7 are preferably braced and the st-rength of the casting increased byv longitudinal webs 40, preferably registering with the webs 19, tapering rearwardly to merge l into the web near the rear edge thereof. A

similar construction may be effected in the embodiment illustrated in Figure 5, that is, the upper or buffer housing member 2a may be similarly positioned with respect to the lower or striking casting member 3a with the forward edge of web 9a, diagrammatically illustrated in dot and dash lines, flush with the striking plate portion 7a. The only radical difference between the modification illustrated in Figure 5 and the rst embodiment is that the carrier iron 39a is integral with the depending portions 34a from the striking plate portion instead of being swingingly connected thereto and/or the cheek plate portions 6a, instead of being formed with front draft lugs for cooperation with the front follower usedl with verticalyoke may be omitted and the cheek plate portionsY attachment, may be merely formed as the front parts of F arlow cheek plates 6a or, if desired, may be formed as complete Farlow cheek plates. In other words, if it is desired to use my buffer and draft device with Farlow attachments, that is, with draft rigging utilizing a horizontal yoke and a pair of draft keys, the integral forward draft lugs 6a of the device constructed, as illustrated in Figure 5, to form the forward portions of F arlow cheek plates or all of said cheek plates. The slot portions 26a are preferably reinforced by a rib or beading 33a around the slot portions in said check plates.

Additional modifications with respect to the first embodiment of my invention may comprise the discontinuance of the upperweb or shelf portion of the striking casting forwardly of the end sill 11a thereby obviating cutting the end sill especially for the reception of said shelf or web portion. The longitudinally extending reinforcing webs a are likewise discontinued at points adjacent the rear edge of said shelf'portion 5a. In the iirstembodimentof my invention, the cheek plate or draft lug portions were `shown as extending on the inner surfaces of the draft sills although it is obvious that I do not wish to be restricted to sucha showing. A

similar construction is applicable tothe modiiication shownV in Figure 5 and the cheek plate portions 6a are, therefore, shown as positioned to engage and be connected to the outer surfaces or sides of the draft sills 24a.

Although in the present embodiment, I have shown an integral carrier iron portion 39a, it is obvious that I do not wish to be restricted to such construction as, if desired, the coupler may be supported in a manner similar to that shown in Figures 1 to 4, inclusive. If desired, a wear plate 41 may be applied over the carrier iron portion 39a.

The foregoing description relates particularly to what may be considered as a heavy draft and buffer vdevice to be used where great strength is required. If it is desired to reduce the weight of this device and it is permissible to sacrifice some strength and riveting area,

the following modifications are preferred. The extensions 8 on the upper web or shelf portion 5 of the striking casting 3 forwardly of the striking plate 7 or the depending portions 34 on either side thereof may be omitted together with the bracing webs or gussets 35 thereby saving the weightthereof and, at the same time, sacrificing two rivets for connecting the buffer and draft castings together, as illustrated in Figure 5. The upright web 16 and its reinforcing bead or flange 17 may also be omitted jand the longitudinal webs 19aL tapered forwardly to merge into the web 9EL at the front edge thereof, as indicated in Figure 5. The rearward extensionszof the web 5 overlying the draft lug portionsO may be decreased in length with the elimination of two rivets 42, together with the connecting portion of the cheek plates 6.above the upper reinforcing flanges 33. The-loss ofthe two rear rivets 42 on said web 6 may be partially compensated for by the application of a'rivet L13 disposed substantially on the longitudinal center line of the casting and adapted for connection with an angle iron, cover plate or other part of the car underframe extending between the sills at this place.

From the foregoing description taken in connection with the accompanying drawings, it will be seen that I have devised an improved bufer and draft deviceV adapted for useand application to an associated car underframe as a unit. The construction of the device, however, is greatly facilitated by making the same inr twoV parts and rigidly riveting said parts together. The reason for thisv is that smaller casting flasks may be employed thereby improving mouiding cenditions as well as obviating the useof'an unduly large amount of sand and large dry sand cores. In other words, in place of having to mould a very cumbersome and unwieldly device, it is merely necessary to mould two relatively simple devices and cast the same. By dividing thecombined'buifer and draft device et the indicated line of division, improvement in mooi iin conditions is effected to the gi'ezltest degree Y-Jithout sacrificing' strength of the Combined :inicie oi* detracting' fiom the strength of Connection with the associated enr underfram Having now described my iifeotioon i miie? nod draft device comprising* seiviiigi, respectively, e. buffe? and striking cestino; with integral Chee] pinto p ions, said striking casting being; pr vided With mi up* ei' substantially horizontal ii'eh portion seiviii to connect the Cheek pleite ooitio'ss and support the buffer s( sing; being formed oei-s housi u.

housing` iid buffer nou Y with e Coi'iespoidiiiq iowei horizontal weh portion adapted to iegist with the shelf portion of the striking ,ast-ing, zuid rivet ineens iiegidh; connect-iii@ seid web portions,

said hiiiiei housing hein j 1formed at the iem edge et its brise poi'tion with en opstanding web adapted foi' coniieetioii with an associated end sill.

2. A butter and draft device eomoiising; members serving, respectiveiy, :.s :i huiiei' housing; mid t-rikiiigg:` casting' With integral cheek piste port-ions, seid siiiiingr casting1 being' provided with mi upper substantially horizontal web portion serving to connect the cheek plete portions and support the buffer housing, butter housing being formed With .fi corre, pending lower horizont-:i1 Weh porti adapted to resiste-i1 with the shelf portion ot the stikiiig Casting, and rivet means fig-idly connecting said web portions, smid hoffe? loosing; being' formed at the refuedge of its esse 4,oi'tioo. with 1:11 opstanding web :idspted for connection with an assodate-L end siii, the oogje? poitioii or" said web heiiig piovided with :i foiwnrdiy oti'set por- `ioii adapted to piovide for the i'eeeptioii of and he eomieeted en associated port 0f ce? such huifei bleek.

i butter Casting comprising transmiselj; spaced eoiiipeitments adapted to receive hoher s ugs :md associated stems, :i no1'- liifiily hoi'iiontnl weh portion connecting said housing` y: itions :uid piovidiiig a i'eiatively large rive gf. are?. 'foi' connecting seid memhei iif'iti. ein undeiijfing striliiiig` 'casting7 the resii e( ot seid hoifizoiital web portion opstanding web extendthe costing foi "irot'idkeine foiiiieo with :ai

iio; the fidi width Y zi i'ehitv h, iiietiiig :wea .Lor Coliieetiiii; tie seme t ted end siii oi" zz effi', sind hosten" w1 iheiiip; .formed 'with "iwzii'diy oi'ts t itioii ized to provide to?? Tesel of :i huffei hioek oi' the like, whereby said casting may be rigidly Connected to mi associated zun testiiiioli'xv whereof l o fiiz-r my signature. DONALD BRROVS.

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