US668281A - Railway draft-rigging. - Google Patents

Description

Patented Feb. I9, 90l.

c'. M. cAnNAHAN. n RAILWAY` DRAFT BIGGING.

(No M d I (Application lad Feb. 10, 1900.) 0 B Juuwwwwww. ..mmme w www? ,ff/M EE- TME Nonms PETERS co. vuo'rau'mo.. wAsmNixToN, 'n c llnrrnn @marne Partnr @reina CYRUS M. CARNAHAN, OF ALLEGI-IENY, PENNSYLVANIA.

RAILWAY DRAFT-RlGGING.

SPEQIFGATION forming` part of Letters Patent No. 668,281, dated February 19, 1901.

Application filed February l0I 1900; Serial No. 4,727. (No model.

To al?, whom/'it may concern:

Be it known thatI, CYRUS M. CARNAHAN, a citizen of the United States, residing at No. 5 Church avenue, Allegheny, in the county of Allegheny and State of Pennsylvania, have invented or discovered a new and useful Improvement in Railway Draft- Rigging, of which the following is a full, clear, and exact description, reference being had to the ac companying drawings, forming part of this specification, in which- Figure 1 is a central longitudinal vertical section taken through the draft-rigging. Fig. 2 is an end view of the coupler mounted in position. Fig. 3 is a plan view of Fig. 1. Fig. 4 is a cross-section taken o n the line IV IV of Fig. 3. Fig. 5 is a perspective detail View showing a block incorporated with one of the structural members. Fig. 6 is a view similar to Fig. 3, illustratingT a modified construction. Fig. 7 is a side elevation of the construction shown in Fig. 6.

My invention consists of improvements in the draft-rigging of railway-cars, and has for its objects the sim plication of construction, increase in strength, cheapness of cost, and generally the adapting to this purpose of structural steel in place of the usual timber framing commonly employed.

A further object is to dispense with separate buffers, the draw-head acting to absorb the shock of contact, and this and other features of novelty and advantage will be hereinafter described.

Referring now to the drawings, 2 2 are structural -beams or channels, if preferred, located longitudinally of the car at each end or ruiming for its full length, incorporated with the timbers of the car-frame in any suitable manner, so as to rigidly form an immovable part thereof. This may be done by bolt.- ing the tlanges of the beams to the timbers or by using supplemental -beams 3, connected to the main beams and to the timbers or in any preferred or workmanlike manner. Between the beams 2 and projecting some what beyond their front ends is located the draw-head 4, adapted to have sufficient play therein to permit the draw-head to be depressed backwardly in the act of coupling sufliciently far to allow the opposing ends of the I-beams of adjacent cars to meet. These ends are reinforced by means of blocks 5,

tted in against the web and between the flanges of the beams, to which they are securely riveted, thus forming a solid bufferface.

Immediately back of the draw-head, curved to meet and embrace the rounded shoulders thereof when depressed, are abutments 6 G, fitted between the flanges and against the web of the beams, meeting above and below the draw-head, with an intervening space adapted to embrace and form a guiding-way for the draw-head. Above and below, extending across and connecting the beams, are plates 7 7, while the various parts are firmly bound together by bolts or rivets 8, passing through the abutments, flanges, and plates, respectively. 4

The draw-bolt 9 of the coupler extends centrally back through a front follower-plate 10, which bears against the tail end of the drawhead, and through a back follower-plate 11, which bears against a spreaderblock 12, framed in between the beams and securely riveted to them, as clearly shown in Fig. 4. These follower- plates 10 and 11 fit between and rest upon the flanges of the beams, and between them, encircling the boltf), is a coiled spring 13 of the necessary strength to give elasticity to the pull and placed in under tension.' The forward plate l0 is provided with forwardly projecting arms 14:, which bear against the abutments 6, while the bolt 9 is adapted, by means of sleeve 15 and key 16, t-o transmit the pulling strain from the drawhead through the bolt and sleeve, plate 11, spring 13, plate 10, and arms 14 to the abutments 6 and through them -and the beams to the framework of the car. It will be seen that the draw-head at each side is provided with projecting lugs 17, which after vthe tension of the spring is overcome come into lcontact with the abutments t' and form a solid bearing, thus somewhat relieving the strain on the arms 14, tbc. It will be noted that when acting as a buifer the spring 13 will be Linder compression by reason of the plate 11 forming a solid backing against which the spring is compressed by plate l0 on backward movement of the draw-head.

In Figs. 6 and 7 the construction is somewhat modified by the use of a strap 18, bolted to the draw-head and surrounding both plates 10 and 11, between which the spring is IOO clamped, the strap taking the place of the bolt in transmitting the strain, While the bolt 9 in this case projects back centrally th rough the end of the strap and serves to centralize the draw-head and spring. In this construction the arms 14 are dispensed with and the abutments 6 are provided with rearwardlyprojecting extensions 6', against which the plate 10 bears. It Will also be understood that other structural shapes may be employed-as, for instance, channel-irons, or, in fact, any structural construction that will provide a suitable framework adapted to operate and suit the ends in view, as has been described. When constructed under any such altered form, the operation and action are the same.

vFrom the foregoing description the construction and operation of my invention will be easily understood and its advantages will be appreciated by those skilled in the art.

The substitut-ionV of structural steel for framingin place of the usual timbers greatly enhances the strength and durability, and it will be seen that the entire rigging and its frame may be assembled and equipped, either in new-cars or in reorganizing old ones, in a short time.

It will be noted that the entire rigging may be removed by simply withdrawing the bolts 8, when the draw-head, abutments, followerplates, spring, and bolt may be withdrawn and again as easily replaced by reinserting the bolts, thus rendering the Work of taking apart or reassembling very simple and expeditious.

What I claim is- 1. In a draft-gear the combination of parallel rolled structural members incorporated with the framework of a car, separable removable abutments rigidly mounted on the inner sides of the structural members adapted to embrace the draw-bar and to permit of lateral detachment therefrom, a spreader-block connecting the members back of the abutments, a draw bar and head mounted between the members and adapted to exert a pulling pressure forwardly upon the abutments and a bufting pressure backwardly against the spreader-block, substantially as set forth.

2. In a draft-gear the combination of parallel rolled structural members incorporated with the framework of a car, buffer-blocks mounted in the ends of the structural members, separable removable abutments rigidly mounted on the inner sides of the structural members adapted to embrace the draw-bar and to permit of lateral detachment therefrom, a spreader-block connecting the members back of the abutments, and a draw bar and head mounted between the members and adapted to exert a pulling pressure forwardly upon the abutments and a bufng pressure backwardly against the spreader-block, substantially as set forth.

3. In a draft-gear the combination of parallel rolled structural members incorporated ,with the framework of a car, connectingplates, a rear spreader-block connecting the members, separable removable abutments rigidly mounted on the inner sides of the structural members adapted to embrace the draw-bar and to permit of lat-eral detachment therefrom, a draw bar and head mounted between the members and adapted to exert a pulling pressure forwardly upon the abutments and a buffing pressure backwardly against the spreader-block, a front followerplate provided with arms adapted to bear against the abutments, a back follower-plate adapted to bear against the spreader-block, an intervening tension-spring and a central draft-bolt, substantially as set forth.

4. In a draft-gear, the combination of parallel rolled structural members incorporated with the frameworkof a car, connectingplates, a rear spreader-block connecting the members, separable removable abutments rigidly mounted. on the inner sides of the structural members adapted to embrace the draw-bar and to permit of lateral detachment therefrom, a draw bar and head mounted between the members and adapted te exert a pulling pressure forwardly upon the abutments and a. bufing pressure backwardly against the spreader-block, and provided with lateral lugs adapted to bear against the abutments, a front follower-plate provided with arms adapted to bear against the abut- IOO ments, a back follower-plate adapted to bear against the spreader-block, an intervening tension-spring and a central draft-bolt, substantially as set forth.

5. In adraft-gear the combination with parallel rolled structural members incorporated with the framework of a car and a draw head and bar mounted between the members; of separable removable abutments rigidly mounted on the inner sides of the structural members, adapted to embrace the draw-bar and provided with curved front faces conforming to the curvature of the draw-head, substantially as set forth. p

6. In a draft-gear the combination with parallel rolled structural members incorporated with the framework of a car and a draw head and bar mounted between the members; of separable abutments mounted on the inner sides of the structural members, removable securing-bolts passing through and connecting the structural members and the abutments, such abutments being adapted to embrace the draw-bar and provided with curved front faces conforming to the curvature of the draw-head, substantially as set forth.

In testimony whereof I have hereunto set my hand.

CYRUS M. CARNAHAN.

In presence of- PETER J. EDWARDS, C. M. CLARKE.

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