. The street railway review . used comprised: Brick Lime, bushels 8,480 Tortland cement. Bbls. 1. In concrete 775 2. In stone work 20 3. In brick work 707 Tclal 1,508 Sand eu. yds. Kailroad iron iu concrete lbs. Beams under openings 2,.574 Wrought-ir(m bands and rolls ,180 C. I. plates and cai) .56,474 Total Cleaning Water Tube Boilers. The adndtted advantages of water tube bo:lers in etiiciency andsafety have led to their almost universal adoption in large plantsaud the proportion of water-tube boilers to the total installed insmall plants has greatly increas
. The street railway review . used comprised: Brick Lime, bushels 8,480 Tortland cement. Bbls. 1. In concrete 775 2. In stone work 20 3. In brick work 707 Tclal 1,508 Sand eu. yds. Kailroad iron iu concrete lbs. Beams under openings 2,.574 Wrought-ir(m bands and rolls ,180 C. I. plates and cai) .56,474 Total Cleaning Water Tube Boilers. The adndtted advantages of water tube bo:lers in etiiciency andsafety have led to their almost universal adoption in large plantsaud the proportion of water-tube boilers to the total installed insmall plants has greatly increased within the last six years. One of the most ditiienlt problems, perhaps it is not putting ittoo strong to say the most dithctdt problem, confronting the usersof water tube boilers has been that of cleaning the interior of thetubes. It is a quite siuq)le nuitter to keep the fire surfaces ofsuch b(Hl(>rs free from soot; the tulies need only to have a jet ofsteam turne<l on them occasionally. But freeing the interior of. THE TURBINE BOILER CLEANER. the tubes from scale was a different problem, the opa-ation waslong, tedious and expensive, and where the water used was pailic-ularly bad. and much scale was formed in the boilers, mauy ofIhe water lube tyi>es were out of the question. In lh(isi> lypes whicli had perfectly straight tubes, with freeariess to caib. Iliey (•o\dd be ih-aned by means of a cutting toolor scrapiM- <in a bar which was thrust through froi,i end to the tubes were connected to dniins or headers at each endof sufficient size to permit a nuin to enter and work, chains with ^tiM%ibkVioa\ifelcW (;)i) Hi-rapiug or cutting tools on tliciu. coulil In: drawn l):ii k :niil Iorlhanil till scale thus IcHisiMUd. but at a high cost for lal or. There was never a boiler designed in which scale will net de-posit if the water used in it Iontains I lie necessary when wale does form it means a decrease in the etficieiicy ofthe heating su
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
