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128 Incorporated 1866. THE LOCOMOTIVE. Charter Per- petual. tones Policies of Insurance after a Careful Inspection of the Boilers. COVERING ALT. LOSS OR DAMAGE TO BOILERS, BUILDINGS, AND MACHINERY ALSO COVERING LOSS OF LIFE AND ACCIDENT TO PERSONS ARISING FROM Steam Boiler Explosions- Full information concerning the plan of the Company's operations can be obtained at the GOMP^NT'S OFFICE, HARTFORD, COZLSrZDsT.., Or at any Agency. J. M. ALLEN, President. W. B. FRANKLIN, Vice-Prest. J. B. PIERCE, Secretary. FRANCIS B. ALLEN, 2d Vice-Prest. E. J. MURPHY, M. E., Consulting Engineer. ISo;n
Wxt Jtotmrtta PUBLISHED BY THE HARTFORD STEAM BOILER INSPECTION AND INSURANCE COMPANY. New Series — Vol. XV. HARTFORD, CONN., SEPTEMBER, 1894. No. 9. <strong>The</strong> Formation of Scale in Boilers, and in Feed, Circulating", and Blow-off Pipes. If we could run boilers with perfectly pure water — for example, with water that had previously been distilled — many of the difficulties encountered in actual practice would never arise, and the fireman's duties and responsibilities would be correspond- ingly lessened and simplified. Unfortunately, this ideal condition of things cannot be realized. We cannot afford to use distilled water, and in most cases feed-water has to be taken in accordance with that mode of selection which is known to the world at large as " Hobson's choice"; that is, we have to take what we can get. In cities and towns good water may usually be had from the city mains ; but in sparsely populated districts the manufacturer has to depend upon wells or upon running streams, which Fig. A Feed-Pipe nearly Sealed up by Scale. usually serve as sewers for the families of the employes who live along their banks. If there is organic matter in the water trouble is likely to result from corrosion and wast- ing of the boiler plates; and wells, which are notorious for the "hardness" of the water they furnish, are apt to provide the manufacturer with more scale-forming matter than he can comfortably handle. <strong>The</strong> water supply of cities is selected with special reference to its fitness for drinking purposes, and for this reason city water is usually comparatively free from organic matter. In most cases it consists of surface water which has not penetrated deeply into the soil, and which has, therefore, had but little opportunity of dissolving mineral matter; but in regions where lime and magnesia abound the city water is likely to be more or less charged with compounds of these sub- stances, and under these circumstances it may be as " hard" as the general run of well waters, and may deposit a copious scale.
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PRESENTED BY q re^u \jarri€L'SjNe
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PUBLISHED BY THE HARTFORD STEAM BOI
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1894 THE LOCO MOT! VE. Inspectors'
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1894.] Til i: LOCOMOTI"V ES. 5 Ky.
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1894.] ill i: LOCO MOT ! \ I. was s
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THE LOCOMOTIVE. 9 We should be plea
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1894.] T II i: LOCOM ()TI V E. H th
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1884.] THE LOCOMOTIVE 13 1 in. PROP
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1894 | Til E LOCOMOTH E 1£> Thb Ja
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IS'.il ] Til E MK'OJIiiTI V I. \Q a
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1894 | T II !: LOCO M OT 1 Inspecto
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1894.] THE LOCOMO T I V E Nature of
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ls-.M | THE LOCOMOTH E 26 The Explo
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1894 THE LOCO M OT1 V E 27 experime
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1894.J THE LOCOMOTIVE. 29 the grand
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lsui ] THE LOCOMOTIVE. 31 [sting ca
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1894 | THE Nature of Defects. Furna
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1894 | THE LOCOMOTIVE. 37 The whist
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THE LOCOMOTIVE. 39 No. 8. Friday, J
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1894] THE LOCOMOTIVE. 41 'I'll is i
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1894.] I'll i: I. MOTIVE. 43 for 18
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1894.] THE LOC QUOTH E 45 ingagood
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is.. i THE i LOCOMOTIVE 47 The Coco
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Wlxt Jtorototto. PUBLISHED BY THE H
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1894 ; THE Nature of l>> Furnaces o
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Til B LOCOMOTIVE 53 mnd scalded, an
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1894.] THE LOCOMOTIVE 55 way. Erect
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1894.] Til i: LOCOMOTIV B. 57 The J
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1884.] THE Loco M OTIVE 59 also giv
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62 THE LOCOMOTIVE. [April, 1881, th
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64 Incorporated 1866. THE LOCOMOTIV
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66 THE L O C M ( > T I V E . [May,
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68 THE LOCOMOTIVE. [Mat, ning, and
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70 T II E L O C M ( ) T I V E . [Ma
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72 THE LOCOMOTIVE. [May, (67.) —
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74 THE LOCO M T I V E tfSI It 1$ 1
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76 THE LOCOMOTIVE [Mat, No. of Voya
Page 86 and 87: 78 THE LOCOMOTIVE. [May, laugh. Two
Page 88 and 89: 80 Incorporated 1866. THE LOCOMOTIV
Page 90 and 91: 39 THE LOCOMOTIVE. [.Jine, pounds^
Page 92 and 93: 84 THE LOCOMOTIVE [June, |", the ho
Page 94 and 95: 86 THE LOCOMOTIVE. [June, Nature of
Page 96 and 97: g3 THE LOCOMOTIVE. [Jink, testing i
Page 98 and 99: 90 THE LOCO M T 1 V E [June, $ t $
Page 100 and 101: — 92 THE LOCOMOTIVE [June, and th
Page 102 and 103: 94 THE LOCOMOTIVE [Juke however, to
Page 104 and 105: 96 Incorporated 1866. THE LOCOMOTIV
Page 106 and 107: 98 THE LOCOMOTIVE [July, minutes be
Page 108 and 109: 100 THE LOCOMOTIVE. [July, rear hal
Page 110 and 111: 102 THE LOCOMOTIVE. [July, shattere
Page 112 and 113: 1(34 THE LOCOMOTIVE. [July, HARTFOR
Page 114 and 115: 1C6 THE LOCOMOTIVE. [July, connecte
Page 116 and 117: 108 THE LOCOMOTIVE. [July, Concerni
Page 118 and 119: 110 THE LOCOMOTIVE. [July, person l
Page 120 and 121: 112 Incorporated 1866. THE LOCOMOTI
Page 122 and 123: 114 THE LOCOMOTIVE. [A.UGU8T, the s
Page 124 and 125: 1 1 Q THE LOCO M T 1 V F . [August,
Page 126 and 127: H8 THE LOCOMOTIVE [Augcst, propriet
Page 128 and 129: 120 THE LOCOMOTIVE. [Aigust, ffikt
Page 130 and 131: 122 THE LOCOMOTIVE. [August, eviden
Page 132 and 133: 124 T HE LOCOMOTI V The Explosion o
Page 134 and 135: •126 THE LOCOMOTIVE. [August, On
Page 138 and 139: 130 THE LOCOMOTIVE. [September, The
Page 140 and 141: 132 THE LOCOMOTIVE. [September, col
Page 142 and 143: 134 Nature of Defects. Cases of int
Page 144 and 145: 436 THE LOCOMOTIVE. [September, one
Page 146 and 147: 138 THE LOCOMOTIVE [September, \ +
Page 148 and 149: 140 THE LOCOMOTIVE. [September, and
Page 150 and 151: 142 THE LOCOMOTIVE [September, will
Page 154 and 155: 146 THE LOCOMOTIVE [October, pipe,
Page 156 and 157: 148 THE LOCOMOTIVE. [October, does
Page 158 and 159: 150 THE LOCOMOTIVE. [October, means
Page 160 and 161: 152 THE LOCOMOTIVE. [October, to sa
Page 162 and 163: 454 THE LOCOMOTIVE. [October, ished
Page 164 and 165: 156 THE LOCOMOTIVE. [October HARTFO
Page 166 and 167: 158 THE LOCOMOTIVE. [October, is 12
Page 170 and 171: 162 THE LOCOMOTIVE. [November, atte
Page 172 and 173: 164 THE LOCOMOTIVE. [November, Natu
Page 174 and 175: 166 THE LOCOMOTIVE. [November, Hild
Page 176 and 177: 168 THE LOCOMOTIVE. [November, caus
Page 178 and 179: 170 THE LOCOMOTIVE. [Novembek, HART
Page 180 and 181: 472 THE LOCOMOTIVE. [November, wate
Page 182 and 183: 174 THE LOCOMOTIVE. [November, to t
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178 THE LOCOMOTIVE. [Decembbb, it m
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: 180 THE LOCOMOTIVE. [December, ha
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^ g2 THE LOCOMOTIVE. [December, Eng
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484 T II E L O C O M O T I V E . [D
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186 THE LOCOMOTIVE. [December, BItt
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188 THE LOCOMOTIVE. [December, The
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190 THE LOCOMOTIVE. [December, sour
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192 Incorporated 1866. THE LOCOMOTI
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INDEX Explosion, on the Arethuse, 1
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