US1391067A - Railway draft-rigging - Google Patents

Description

W. H. MINER AND J. F. OCONNOR.

RAILWAY DRAFT RIGGING.

APPLICATION FlLED MAR. 15. I920.

PatentedSept. 20, 1921.

2 SHEETS-SHEET I.

W. H. MINER AND J. F. OCONNOR.

RAILWAY DRAFT RIGGING.

APPLICATION FILED MAR. 15,1920.

2 SHEETSSHEET 2.

WWII/Willi? & y Q Q A i wrnnrm n.

UNITED STATES PATENT OFFICE.

MINER, or onAzY, NEW YORK, AND JOHN F. O'CONNOR, or CHICAGO, ILLINOIS; SAID ooomron ASSIGNOR ro SAID MINER.

RAILWAY DRAIT-RIGGING.

The object of. the invention is to provide an economical friction draft rigging for railway cars wherein the usual space between the sills is utilized for the friction ele ments proper and the spring resistances are disposed outside of the sills in space not now usually occupied.

In the drawing forming a part of this specification, Figure 1 isa horizontal :longitudinal sectional view of a portion of a railway draft rigging showing our' improvements employed in connection therewith. Fig. 2 is a vertical transverse sectional vlew taken substantially on the line 2'2 of Fig. 1. And Fig. 3 is a detail perspective of on of the movable friction elements.

In-said drawing 1010. denote channel shaped center or draft sills of a railway car arranged in a well known manner. Secured to the inner faces of said sills are stop castings or cheek lates each designatedby the reference A. ach of said castings A provides a front stop shoulder 11 and a rear stop shoulder 12 as clearly indicated in Fig. 1. A more detailed description of said castings A will be found hereinafter. A portion of a drawbar is indioated at 13, the same being operatively associatedwith the shock absorbing mechanism by means of a yoke 14 of well known form. In carrying out our invention, we employ a front follower 15, rear follower 16, a pair of laterally movable friction elements 17-47;, laterally arranged springs 18, loops 19, links 20 and stationary inclines formed on the castingsA, hereinafter described.

Each of said castings A is formed with two substantially triangular formations at their centers which extend inwardly toward the center line of the gear, said triangular 'Specificationof Letters Patent. Pate t d S pt 20 192 Application filed. March 15, 1920. Serial No. 365,798.

formations providing a parallelly arranged "l2112l and 122-122 adapted to c06perate respectively with the inclines 21 and 22. The shoes 17 are formed at their ends with flat transversely extending friction surfaces 23--23 which are adapted to cooperate with theinner faces of the followers 15 and 16.

The shoes 17 are centrally slotted as indicated at 24150 accommodate the links 20, the latter being secured to the correspondng shoes 17 by heavy pins 25,.the heads of which are preferably counter-sunk within the shoes so as to avoid any obstruction as the shoes move'laterally toward each other within the arms of the yoke 14. The links 20 pass outwardly through suitable slots in i the castingsA andsills 10 and at their outer ends are pivotally connected to slidable blocks 29 by means of heavy pivot pins 30. The loops 19 are also pivotally connected to said blocks 29 by the same pins 30as clearly indicated in Fig. 2.'

The blocks 29 are slidably guided within 'U-shaped stirrup plates 31 which form fixed bearings for the inner ends of. the springs 18. It will be noted from an inspection of Fig. 2 that the loops 19 straddle the stirrup plates 31 so that said plates 31 assist in properly sustaining the loops and springs. Preferably, separable followers 32 are employed at the outer ends of the springs 18 within the loops 19, said followers 32 having suitable projections 33-33 to straddle the loop and maintain the followers in proper position. I

U From an" inspection of Fig. 1, it will be noted that the followers 15'and 16-are normally spaced from the respective stops 11 and 12 a distance corresponding to the permissible movement. of the draft rigging. Also, it will be seen that the shoes 17 are in their outermost position, that is, are separated the maximum amount. In operation, and assuming a bufling or inward movement ,of the drawbar, it is evident that both followers 15 and 16 will move rearwardly simultaneously and uniformly with the sills; connecting means between said spring tained when the rear follower 16 engages the rear stops 12. Upon removal of the actuat- 'ing pressure, the expansion of the springs 18will re-act through the loops 19 and links v2O to return the shoes, 17 to their normal position.

Various changes and modifications may be made in the details of construction and arrangement of parts without departing from the spirit of our invention and all such changes and modifications are contemplated as come within the scope of the claims appended hereto. i

We claim: v

1. In a railway draft rigging thegc'ombisets of inclines on their inner faces; of later ally inward and longitudinally movable friction shoes cooperable with said inclines; spring resistances disposed outside of the resistances and shoes; followers at the ends of'said shoes in engagement therewith; and stops with which said followers are adapted to cooperate. v a

2. In a railway draft rigging, the combination with draft sills having oppositely extending sets of stationary inclines on their inner faces; of laterally inwardly and longitudinally movable friction shoes cooper- V able with said inclines; means for actuating lowers being said shoes; laterally extending springs on the outer sides of said sills; loops inclosing said springs; and link connections between the shoes and theloops.

In a railway draft rigging, the combination with draft sills each provided on its 7' inner face with oppositely extending pairs of parallel inclined friction surfaces; a pair of friction shoes, each of said shoes being provided on its outer side with oppositely,

inclined pairs of parallel friction surfaces cooperable with said stationary inclines; followers at the ends of said shoes, the folsimultaneously movable; spring resistances disposed outside of the sills; and operative connections betweenthe spring resistances and said shoes. I

4. In a railway draft rigging,the ciombinationwith a drawbar, yoke, and front and rear followers; of draft sills; laterally extending springs on the outer sides of said sills; friction shoes disposed between the sills and between said followers said shoes being laterally and longitudinally movable;

operative connectionsbetween said shoes and springs adapted to compress the latter upon actuation of the shoes; and stationary means having inclines, said shoes being provided with cooperating inclined faces.

' 5. In a railway draft rigging, the coinbination with a drawbar, yoke, and front and rear followers; ofdraft sills; laterally extending springs on the outer sides of said sills; friction shoes disposed between the sills and between said followers, said shoes being laterally and longitudinally movable;

operative" connections between said shoes and springs adapted to compress the latter upon actuation of the shoes; and stationary means having inclines, said shoes being provided with cooperating inclined faces, said 7 stationary means being provided also with nation with draft sills having stationary stop shoulders normally spaced from the followers and adapted to 'limitthe moiements of the latter. 7

6. In a railway draft rigging, the conrbination with draft sill's;-of stop castings secured to the inner faces of said sills, each of said stop castings having front andrear the followers and provided with inclined faces 'cooperable with said stationary. inclines; laterally arranged springs disposed outside of the sills; fixed bearings for the inner ends of said-springs; members en-' circling said springs; and link connections between said members and said frlction shoes, said followers being normally spaced from the stop shoulders and the latter adapted to limit the'movement of the mech-' v anism.

In witness that we claim the foregoing v we have hereunto subscribed our names'this 21st day of February, A. D. 1920.

WILLIAM H. MINER. JOHN oooNNo Witness CARRIE GAILING.

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