. American engineer and railroad journal . shown in the sectional views of and 14, with the small inwardly projecting portions, markedH, in the lower view of Fig. 7, resting in cavities in the car-riers, E. It is clear that if the carriers, E, are moved longi-tudinally to the right or left, the wedge bars, G, must movewuh them. The function of the preliminary spring, C, Fig. 1,is to force the wedge against the inclined surfaces, N, of thesegmental carriers, and also to absorb the ordinary pressureson the draw bar due to the movement of the train. When theapparatus is placed in the yoke
. American engineer and railroad journal . shown in the sectional views of and 14, with the small inwardly projecting portions, markedH, in the lower view of Fig. 7, resting in cavities in the car-riers, E. It is clear that if the carriers, E, are moved longi-tudinally to the right or left, the wedge bars, G, must movewuh them. The function of the preliminary spring, C, Fig. 1,is to force the wedge against the inclined surfaces, N, of thesegmental carriers, and also to absorb the ordinary pressureson the draw bar due to the movement of the train. When theapparatus is placed in the yoke this spring is under a slightcompression, which insures the parts being held tightly in po-sition, thus preventing foreign substances from lodging be-tween the bearing surfaces. The auxiliary preliminary spring,0, Fig. 1, gives additional pressure on the wedge. The mainrelease spring, K, is used for returning the segmental car- May, 1900. AMERICAN ENGINEER AND RAILROAD JOURNAL. 149 f^ tc :p[ ,/\ ^ t7 ;^ Fig. i, ■ ■ (=1 Fig. 3 NFig. 5. Fig. 6 r > ff Fig. 7 riers and wedge bars to their normal position after the forceto close them has been removed, and it also gives additionalcapacity to the device. The function of the auxiliary releasespring, L, is to provide a sure release of the wedge from thesegmental carriers, and it also increases the capacity of thedevice. The function of the release pin, M, is to relieve thepressure of the auxiliary release spring, L, against the wedge,when the device is being closed. , either in draft or in buffing, the stress upon the drawbar moves the follower plates, A and Z, Fig. 1, toward each S \ 1 \ 1 1 ~— / ____ \ i ■ . . Fig. 72 ~J / _ . Fig. t3~~ 1 Fig. 10 Fig. 14 i exerted upon the wedge by the prelim-inary springs (about 20,000 pounds)remains constant, as their action Islimited by the follower, A, bearing onthe segmental carriers; the increasedtrictional resistance being due to thetaper of the cylinder. Upon th
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
