. The Street railway journal . in coal can be figured at 20 per cent by super-heating, at 20 per cent by feed water heating, and at 5 percent by perfect combustion, an aggregate of per cent;the saving in locomotive repairs, items 1 and 2, 30 per 456 STREET RAILWAY JOURNAL. [Vol. XXX. No. 13. cent, the saving in water supply for locomotives, 30 percent. The first proposition which naturally presents itself is todeduct-from the items of the 1904 report of the InterstateCommerce Commission these various percentages, whichwill give the following results: 30% of $130,500,000 for engine and rou
. The Street railway journal . in coal can be figured at 20 per cent by super-heating, at 20 per cent by feed water heating, and at 5 percent by perfect combustion, an aggregate of per cent;the saving in locomotive repairs, items 1 and 2, 30 per 456 STREET RAILWAY JOURNAL. [Vol. XXX. No. 13. cent, the saving in water supply for locomotives, 30 percent. The first proposition which naturally presents itself is todeduct-from the items of the 1904 report of the InterstateCommerce Commission these various percentages, whichwill give the following results: 30% of $130,500,000 for engine and roundhouse men (2) $39,150,000 of 156,500,000 for locomotive fuel (3) 61,348,000 30% of 9,150,000 for water supply (4) 2,745,000 Total saving per year .- ;$i03,243,000 In this no account has been made for reduction of repairsand renewals, item (1). The second proposition, assuming that all existing locomo-tives are of the latest types using, instead of 4% lbs., lbs. of coal per draw-bar hp, as stated above, and are. FIG. 3 equipped with the saving devices, will resolve itself intothe following: less coal for modern equipment $66,040,000 of $90,460,000 (item 3) about 35,460,000 ($90,460,000, $66,040,000, $156,500,000, total item 3) 30% of $115,000,000 (item 1) 30% of 130,500,000 (item 2) 73,635,000 3o7c of 9,150,000 (item 4) 2,745,000 Total saving per year $177,880,000 It is estimated that the three improvements, viz.: super-heater, feed water heater and smoke consumer or stoker, canbe added at a cost of less than $4,000 per locomotive, whichwill make a total expenditure of $188,000,000 for 47,000locomotives. According to propositions I and II thisamount would be repaid within 22 months and monthsrespectively from the saving. It is proper to repeat the statement made by Messrs. Still-well and Putnam relative to the reduction of the four itemsreferred to when all roads are electrically operated. They assumed a saving of 70% in item 1, Repairs and renew
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
