. The Street railway journal . vernor, a shaft, one and a half inchesin diameter, and ten feet long, extending across the engine for the pur-pose in the ordinary way, and passing within six inches of the face ofthe flywheel. At the time of the accident the engine was driving, asnearly as could be learned, about 700 H. P. The flywheel which burstwas twenty feet in diameter, thirty-two inches face, and weighed aboutsixteen tons. It showed no defects, and would have doubtless stoodtor years any ordinary treatment. The accident appears to have beendue to a short circuit which increased the load un
. The Street railway journal . vernor, a shaft, one and a half inchesin diameter, and ten feet long, extending across the engine for the pur-pose in the ordinary way, and passing within six inches of the face ofthe flywheel. At the time of the accident the engine was driving, asnearly as could be learned, about 700 H. P. The flywheel which burstwas twenty feet in diameter, thirty-two inches face, and weighed aboutsixteen tons. It showed no defects, and would have doubtless stoodtor years any ordinary treatment. The accident appears to have beendue to a short circuit which increased the load until the belt slipped,and the five foot driven pulley belted to the engine wheel, and markedA in the diagram, failed. This broken pulley parted the belt whichwas drawn toward the engine with such force as to tear up the flooringand break the governor cross shaft mentioned above, completely strip-ping all the governor connections from both cylinders. The engine,being thus uncontrolled, soon attained a speed beyond that which the. ARRANGEMENT OF MACHINERY—BEN VENUE STATION, PITTSBURGH. especially withmake the inser- Cost of one days of 24hours. Cost of one I days of 10Mhours. Coal per 2,240 lbs. Coal per 3,240 lbs. $ $ $ $ $ $ $ $ 2 3 4 5 2 3 4 5 Triple expansion pumping, Allls, 20 48 65 61 67 31 33 35 37 Triple expansion without pumps, Allls,50 reva 27 33 39 45 16 18 20 22 average 29 36 44 51 17 19 21 24 39 46 52 58 22 25 28 30 electric light, average 122 139 157 174 78 84 90 96 48 58 68 79 29 32 36 39 Triple expansion trolley 45 54 64 74 26 29 . 33 36 Condensing mill 44 52 61 69 25 29 33 38 Non condenslng, 50 to 200 70 76 81 88 49 53 57 62 The figures for engines below fifty horse power vary so widely thatthey have been omitted. The above table, Mr. May states, has beencalculated as far as possible from actual engines running under ordi-nary conditions. flywheel could stand. The wheel was made in eight sections, andbroke, in each instance in the
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Keywords: ., bookcentury1800, bookdecade1880, bookidstreetrailwa, bookyear1884
