. The Street railway journal . FIGS. 1 AND 2. — DETAILS OF HEATER patented form of clamp-stay permits of free expansion and con-traction of the coils, at the same time holding them securely in order to permit the renewal of packings without disturbing thepipe connections, an improved fitting is used, the feed pipe beingscrewed directly into it and not outside of it, so that the gland nutholding the coil in position may be run back on to feed-water pipe,while the asbestos packing is renewed. Each coil is tested to with-stand 600 lbs. hydraulic pressure. The manufacturers direct spe-cia
. The Street railway journal . FIGS. 1 AND 2. — DETAILS OF HEATER patented form of clamp-stay permits of free expansion and con-traction of the coils, at the same time holding them securely in order to permit the renewal of packings without disturbing thepipe connections, an improved fitting is used, the feed pipe beingscrewed directly into it and not outside of it, so that the gland nutholding the coil in position may be run back on to feed-water pipe,while the asbestos packing is renewed. Each coil is tested to with-stand 600 lbs. hydraulic pressure. The manufacturers direct spe-cial attention to the fact that the feed water comes in contact withno other metal than copper in passing through the heater, whichtakes up little room and has no removable or adjustable parts to getout of order. The arrangement of apparatus shown by Fig. 3 isone which obviates the use of a hot well, the feed water passing firstthrough the horizontal primary heater, in which it attains a tem-perature depending upon the vacuum i
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
