. The Street railway journal . in Fig. 6. In this drawing it will beseen that the rotating parts of the two generators aremounted, not on the solid shaft itself, but on hollow shafts together and thus join the dynamo quill to the engineshaft. By energizing two coils in one magneticclutch the solid shaft, the quill and the engineshaft may be all clutched together if , for example, by drawing together the two outer rimsof the right-hand clutch, as shown in Fig. 6, the direct-current generator is connected to the large engine; bydrawing over the central rim of the same clutch and by
. The Street railway journal . in Fig. 6. In this drawing it will beseen that the rotating parts of the two generators aremounted, not on the solid shaft itself, but on hollow shafts together and thus join the dynamo quill to the engineshaft. By energizing two coils in one magneticclutch the solid shaft, the quill and the engineshaft may be all clutched together if , for example, by drawing together the two outer rimsof the right-hand clutch, as shown in Fig. 6, the direct-current generator is connected to the large engine; bydrawing over the central rim of the same clutch and by at-taching the central rim of the left-hand clutch to the right-hand rim of the same clutch both generators are connectedto the large engine. In a similar way either or both gen-erators can be connected to the small engine, or one gen-erator can be connected to each engine or both enginescan be clutched together, driving either or both gener-ators. It will be noted that the central solid shaft is in two sec- J U Inch =1 Foot. Eugiut Room. Temporary BulUUe^J to be Honored a» Plant is extended. FIG. OF POWER STATION or quills surrounding the solid shaft. Each of these quills—one carrying the armature of the direct-current machineand the other the rotating field of the alternating-currentmachine—is supported in two quill bearings and carrieson one end a disc of what is termed a three-way magneticclutch. Each of these three-way magnetic clutches hasthree Sets of spokes and three rims; the central one is at-tached to the inner solid shaft, one of the outer rims is at-tached to the adjacent quill and the other to the adjacentengine shaft. Coils embedded in the rims and concentricwith the shaft are arranged to draw the central rim towardeither of the outer rims and thus clutch the solid shaft toeither the quill or the engine shaft. Other coils are pro-vided to draw the two outer rims of one magnetic clutch tions, fastened together at the center by an ordinary boltedrlang
Size: 1745px × 1431px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookidstreetrailwa, bookyear1884
