US1531646A - Draft rigging - Google Patents

Description

March 31. 1925.

Q .mk w Q A n Patented Mar. 31, 1925.

UNITED STATES PATENT OFFICE.

PERCY R. DBENNING, F BALTIMORE, MARYLAND, ASSIGNOR, BY MESNE ASSIGN- MENTS, T0 THE SYHINGLION COMPANY, A CORPORATION OF MARYLAND.

DRAFT RIGGING.

Application med Api-n 15, 1922.. sei-m1 1ro. ssasso.

To all whom t may comem:

Be it known that I, PERor R. DRENNING, a citizen of the United States, residing at Baltimore, in the State of Maryland, have 5 invented certain new and useful Improvements in Draft Rigging; land I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to draft rigging for railway cars.

The principal object of my invention is to provide means for preventing the splitting 16 of the yoke head, said means extending inwardly of the center sills and contacting said yoke upon angular movement thereof beyond predetermined positions.

Another object of the invention is to pro- 20 vide guide means contacting each end portion yof a vertical yoke, said guide means including front stop members .provided with oppositely arranged inclined bearing surfaces cooperatively associated with the side 35 walls of the yoke head, and a combined backstop and center sill tie casting having inclined bearing surfaces oppositely arranged for engagement with cooperating bearing surfaces provided" on the rear end of said yoke. Y

A further object of the invention is to provide in combination, means for guiding and contacting the yoke head when moved beyond normal angular positions, and means including a front stop member overlapping the center sills and forming, together with the cheek plates and said sills, a supplemental stop member adapted to be engaged by the forward ed e of the coupler key upon movement of t e yoke beyond a predetermined forwardA position and when the cushioning mechanism becomes solid.

With these and other objects in view, the invention further consists in the construction and arrangement of the several parts hereinafter described and pointed out in the appended claims.

In the drawings wherein I have illustrated anjembodiment of my invention and in which corresponding reference characters designate similar parts in the several views: Figure l is a view half in plan and half in horizontal section of the center or draft the line [1 -a of Figure 2 and the other half y of said view being taken 011 the line b-b of Figure 2, the yoke being shown in assembled position.

' Figure 4 is a detail view in side elevation lof a vertical yoke embodying certain feal tures of\ my invention.

The channel center or draft sills of the car underframe are designated -by the numeral 1, said sills being spaced apart, as shown, and tied together by means of the backstop member or casting 2. The stop casting 2 is formed with stop lugs or portions 3'adapted to be engaged by the rear follower 4 of the cushioning mechanism, which latter is diagrammatically indicated by the dot and dash lines in Figurev 1.

Adjacent the stop lugs 3 and extending rearwardly therefrom, are the oppositely disposed inclined walls and bearing faces 5, said faces terminating in a cross connectingv web 6, which latter constitutes a bufng face for preventing rearward movement of the yoke. Each bearing face 5 is perforated, as at 7, said perforations being of a size suflicient to permit the insertion of the' rivets and tool for holding the same while being upset, and also serving to eect convenient coring in the manufacture of the easing. The bearing faces on the rear of the yoke which eo-act with the inclined bearing faces of the stopcasting 2 are each provided with openings of relatively small size, said openings being located so as-to brin maximum bearing surfaces adjacent the bearing faces of the stop casting and particularly in transverse a inement with the intermediate horizontally disposed stiffening webs connecting the inclined walls and side walls of the casting to be hereinafter referred to.

The cross connecting web 6 of the backstop is braced by the longitudinally disposed web 9 and the side Walls of the backstop casting are connected and braced byv transverse diagonally disposed webs,v as

shown. Horizontally arranged intermediate flangs or webs 12' unite the side walls with the aring walls and serve to reinforce the stop lugs of the casting. Transversely arranged diagonal braces 13 connect the webs 6 with vthe side walls, and said walls join said web at its juncture with the inclined bearing walls, as shown in Figure'l. ,A vertical yoke 14 is provided atits rear end with inwardly rearwardly inclined wall portions 15, the bearing faces thereon cooperating with the inclined bearing faces formed on the backstop. The rear end of the yoke is of hollow web construction, each bearing face having openings, as indicated at 16. These openings are relatively slnall and are arranged upon the respective opposite side walls of the yoke so as to provide relatively large bearing faces at points corresponding to the beating surfaces formed between the perforations 7 in the inclined bearing' walls of the backstop. The cooperating bearing faces are normally slightly spaced, as shown,

and have been designed to provide ample wearing surfaces formed of strong but comparatively light weight material.

I The end of the yoke is adapted to be normally guided and retained Within the bearing ocket or recess, and is capable of both longitudinal and lateral movement under draft. When angling on curves the respective bearing faces of the yoke and backstop are operatively contacted and lateral or angular movement of said yoke is restrained beyond the usual predetermined distance, thereby materially reducing the strains which would ordinarily be transmitted to the forward orhooded head of the yoke causing it to spread and split.

The forward end of the yoke is provided with a hooded head portion 17 havinr side walls 18 each of which is flared and slotted for the reception of the coupler key 19. The forward ends ofthe slots 20 in said head terminate in relatively thickened portions forming the side walls, thereby increasing the bearing surfaces for the key at these oints. Formed in the forward end of eac center sill is a relatively long slot 21. To the inner face of each sill is connected a cheek plate or front stop member 22, each of which is provided with a slot 23 adapted when the cheek plates are in position to register with said slots 21 in the sills.

The inner edges of the cheek plates are formed with bearing faces 24, portions of said faces being arranged above and below the slots 23 at adjacent sides thereof, vand othervportions of said bearing faces extending vertically and terminating in the top and bottom flanges 25 and 26, respectively, of the ,cheek plates. The bearing faces are relatively wide, as shown, and are forwardly and outwardly inclined for cooperation with the similarly inclined side walls 18 of the hooded yoke head, said'bearing faces being arranged in normally spaced but relatively close position to the yoke head, as shown.

Intermediate webs or flanges 27 unite the side walls of the cheek plate with the bearing portions, said flanges acting to 4brace the stop portion or lug 28 of each cheek plate, andto also form a surrounding boss for the forwardly extending side portion'of the slot 23.' Rivets 29 are arranged between the respective flanges of the cheek plate, said rivets firmly connecting said plate to the center sill. The forward end of each cheek plate is reduced, as shown, to extend between portions of the striking casting and carry iron, said cheek plate terminating at the forward end of the center sill, and immediately in the rear of an`inwardly extending flange 30.

A coupler`31 extends into the open end of the draft rigging recess or pocket and is connected to the yoke by means of the coupler key hereinbefore referred to. The forward follower of the cushioning mechanism is indicated by the numeral 32.v

Connected to and bridging the forward ends of the draft sills is a combined member for forming the striking casting 33 and the carry iron support 34, said member being provided, with rearwardly extending flanges 35 overlapping and connected to the draft sills by certain of the rivets 29 herein before mentioned. The inner intermediate edges of the flanges 35 terminate in a curved stop portion 36 arranged in alinement with the forward stop portions of the slots 21 in the center sills and slots 23 in the cheek plates. A curved substantially semi-circular boss surrounds the stop portion 36 of each flange, said boss projecting outwardly to form a* relatively wide stop portion for the forward edge of the coupler key, and being also reinforced or braced by the ribs or flanges 37 uniting the sides of the flanges and said boss. The flanges 35 extend rearwardly beyond the-curved stop portions and .are adapted to receive certain of the rivets 29 which firmly connect the sills, cheek plates and said flanges together.

The foregoing construction provides a supplemental stop for the forward edge of the coupler key when the cushioning mechanism becomes solid, thereby transmitting and .distributing excessive loads to the sills and car underframe. The combined strik'- ing casting and carry iron support is formed with a top portion which projects rearwardly over the top flanges of the center sills, and the end sill 38 is arranged between and connected by rivets to said top portion and said center sill flanges. Vertical ribs 39 and horizontally and laterally extending ribs 40 project from the top portion and serve as braces or reinforcing members. .An

loo

angle brace 41 is provided for the. end sill,

rivets passing therethrough and the vertical Splitting or distorting of the yyoke head, the

cooperating bearing faces at both the rear and front ends of the yoke serving to limit -lateral movement thereof beyond predetermined positions..

The supplemental front stop members for" the coupler key are arranged to bridge and overlap the center sills and are connected to the cheek plates for firmly uniting the several parts, thereby effectively resisting the strains imparted through the bearing surfaces upon angling of the yoke.

Having thus described my invention, although it is to be understood that the words used are to be taken in their descriptive and not in their limited sense, what I claim and desire to secure by Letters- Patent, is

1. Ina draft rigging, the combination with draft sills, of cushioning mechanism, a coupler, a vertical yoke, means including a key connecting said coupler and yoke, a stop member with which front edge of said key engages when the cushioning mechanism becomes solid, said stop member bridging and overlapping said draft sills, and stop members with which the rear edge of said key engages, said last named stop members being connected to the draft sills and reach having vertically and horizontally eXtend-.

ing bearing surfaces arranged to lguide and contact the forward end of the yoke above and below the key for transmitting the loads through the yoke head to the draft sills.

2. In a .draft rigging, the combination with draft sills, of cushioning mechanism, a

. coupler, a vertlcal yoke, means including a key connecting said coupler. and yoke, a front stop member adapted to be engaged by the front edge of said key, said stop member being arranged to close the forward end of the draft rigging recess and provided with rearwardly extending flanges, cheek plates provided with stop portions adapted to be engaged by the rear edge of said key, said cheek plates projecting'laterally of the draft rig ing recess in normally lclosely spaced re ation from, the yoke, and rivet means (passing through' vthe forward portions of sai cheek plates andsaid rearwardly extending flanges for connecting said parts to the draft sills.

3. In-a draft rigging, the combination v with spaced center sills, of cushioning mechanlsm, a coupler, a yoke, means including a key connecting said'coupler and yoke, a combined striking castmg and carry lron support having portions adapted to form a forward stop for said key when 'the cushioning mechamsm becomes solid, cheek plates connected to said center sills and arranged to form a rear stop member for said key when the cushioning mechanism becomes solid, bearing faces provided on said cheek plates with which the sides of the yoke are adapted to engage above and below said key, and means connecting said cheek plates to the center sills and to portions of said combined striking casting and. carry iron support.

4. In a draft rigging, the combination with spaced center sills, of a'cushioning mechanism, a coupler, a yokel, means connecting said coupler ,and yoke, a back' stop member having bear-ing faces adapted to contact the rear of said yoke upon angular movement thereof beyond a predetermined position, and front stop members, said front stop members being provided with bearing faces arranged to contact the forward end of the yoke both horizontally and vertically at points above and below the means connecting the coupler and yoke upon angular movement aforesaid.

5. In a draft rigging, the combination with spaced center sills, of a cushioning mechanism, a coupler, a vertical yoke, means connecting said coupler and yoke, a backstop member having stop p'ortions and intermediate inclined bearing faces arranged to 4guide and contact the opposite side faces of the rear of the yoke, and frontstop members having adjacent inclined bearing faces located above and below the moans connecting the coupler and yoke for guiding and contacting opposite side wallsv ofsaid yoke at the front end thereof. V

6. In a draft rigging,-thc combination with spaced center sills` of 'a cushioning mechanism` a coupler` a. yoke. means connecting said coupler and yoke. and means for guiding and contacting said yoke upon angular movement thereof beyond predetermined posit-ions, said means comprising relatively large vertical and longitudinally arran ed bearing surfaces disposed upon opposlte sides of the means connectin the coupler and yoke, said bearing faces eing 'shaped to conform to the adjacent portions' of said yoke.

7. In a draft rigging, the combination with spaced center sills, of a cushioning mechanism, a coupler', a vertical yoke, means connecting said coupler and yoke, and

ymeans guiding and contacting the yoke upon angular and lateral movements thereof beyond predetermined positions, said means comprising cooperating similarly inclined bearing surfaces arranged upon opposite sides of said yoke at each end thereof.

8. In la draft rigging, the combination with spaced center silla, of a cushioning Sill mechanism, a coupler, a vertical yoke, means connecting said coupler and yoke, and means for guiding and contacting the yoke upon angular movements thereof beyond predetermined positions. said means including a plurality of bearing surfaces fixed with relation to the center sills and located at the front and rear of the yoke, and a plurality of cooperating.;y bearing surfaces provided on the respective ends of said yoke for contacting said fixed bearing surfaces upon angular movements aforesaid.

9. In a draft rigging, the combination with spacedcenter sills, of a cushioning mechanism, a coupler, a vertical yoke, means connecting said 'coupler and yoke, and means for guiding and contacting said yoke upon angular movements thereof bcyond predetermined positions, said means including grelatively large fixed bearing surfaces arranged at each end of the yoke, and cooperating bearing surfaces of correspondingly large size provided on the side walls of said yoke and arranged to Contact the said fixed bearing surfaces upon angular movements aforesaid.

10. In a draft rigging, the combination with spaced draft sills, of a coupler, a vertical yoke having its rear side walls formed with relatively large bearing faces, and a backstop member provided with cooperating correspondingly large bearing faces, said cooperating bearing faces acting to guide said yoke and being designed to contact and provide relatively large resisting areas for limiting the angular movement of said yoke beyond a predeterminedposition.

11. In a draft rigging, the combination with spaced center sills, of a coupler, a vertical yoke provided with spaced vertically disposed bearing faces upon each side wall at the rear of the yoke, and a backstop member formed with cooperating spaced bearing faces' vertically arranged at points corresponding to said bearing faces upon the yoke, both of said spaced bearing faces coacting to limit the movement of the rear end `of said yoke beyond predetermined positions.

12. In a draft rigging, the combination with spaced centen sills, of a coupler, a vertical yoke having a hollow webbed rear end provided with spaced bearing faces, said bearing faces having relatively small openings therein, and a backstop member formed of reinforced web sections including spaced bearing walls, said bearing walls being formed with bearing faces having openings arranged in transverse alinement with the aforesaid openings whereby said bearing surfaces are brought into maximum contact upon movement of the yoke beyond a predetermined position. p Y

13. In a draft rigging, the combination with spaced center sills, of a coupler, a vertical yoke having a hooded head provided with oppositely disposed bearing faces and front stop members each having a plurality of projecting ribs furnished with anges, said ribs and ianges forming cooperating bearing faces arranged to contact an adjacent bearing face of said hooded head for preventing angular movement of theyoke head beyond a predetermined' position.

14. In a draft rigging, the combination with spacedcenter sills, of a coupler, a yoke having a hooded head formed with oppositely disposed bearing faces, means including a coupler key connecting said yoke and coupler, and front stop members each having a plurality of projecting ribs furnished with flanges, said fianges forming bearing faces cooperatively associated with said hooded head bearing faces, said last named bearing faces being arranged above and below said coupler key and extending to the top and bottom respectively of said front stop members. p In testimony whereof I aiiix my signature.

PERCY R. DRENNING.

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