The Locomotive - Lighthouse Survival Blog

More documents

Recommendations

Info

Incorporated 1866. Charter Per- petual. Issues Policies of Insurance after a Careful Inspection of He Boilers. COVERING ALT. 7. OSS OR DAMAGE TO BOILERS, BUILDINGS, AND MACHINERY, AND DAMAGE RESULTING FROM LOSS OF LIFE AND PERSONAL INJURIES, CAUSED BY Steam Boiler Explosions. Full information concerning the plan of the Company's operations can be obtained at the COMPANY'S OFFICE, FliLRTFOED, COZlnTICT., Or at any Aeencv. J. M. ALLEN, President. J. B. PIERCE, Secretary. W. B. FRANKLIN, Viee-Prest. L. B. BRAINERD, Treasurer. FRANCIS B. ALLEN, 2d Viee-Prest. L. F. MIDDLEBROOK, Asst. Sec. E. J. MURPHY, M. E., Consulting Engineer. J. M. ALLEN. President. FRANK W. CHENEY. Treas. Cheney Brothers Silk Manufacturing Co. CHARLES M. BEACH, of Beach & Co. DANIEL PHILLIPS, of Adams Express Co. RICHARD W. II. JARVIS, Prest. Colt's Fire Anns Manufacturing Co. LEVER ETT BRAINARD, of The Case, Lockwood & Brainard Co. Gen. WM. B. FRANKLIN, late L*. S. Commissioner to the Paris Exposition. Hon. FRAN' is I!. COOLEY,of the National Exi Bank, Hartford, Conn. GENERAL AGENTS. THEO. IT. BABCOCK, CORBIN A- GOODRICH, LAWFORD & Ml KIM, C. E. ROBERTS, II. M. LEMON. C. C. GARDINER Jb,, S. R. BENJAMIN. W. G. LINEBFRGH & SON, BURWELL & BRIGGS. JAMES W. ARROTT, Ltd., MANN & WILSON, TIIOS. F. DALY. W. S. HASTIE & SON. LOUIS V. CLARK & CO., PETER F. PESCUD, Board 1" T>ireft()rs. CHIEF INSPECTORS. R. K. McMURRAY, WM. J. FARRAN, R. E. MJJNRO, F. S. ALLEN, JAMES L. FOORD, VICTOR HUGO. F. S. ALLEN. J. II. RANDALL. C. A. BURWELL. BENJAMIN FORD, J. B. WARNER. T. E. SHEARS. W. M. FRANCIS, H. E. STRINGFELLOW F. C. BITGOOD, GEORGE BURNHAM, Baldwin Locomotive Works, Philadelphia. Hon. NATHANIEL SHIPMAN. Judge United States Circuit Court C. C. KIMBALL, President Smyth Manufacturing Co., Hartford, < lonn. PHILIP < ORBIN. P. & F. Corbin, New Britain, Conn. GEORGE A. FAIRFIELD, Prest Hartford Machine Screw Company. J. B. PIERCE, Secretary Hartford Steam Boiler Inspection and Insurance Co. ATWOOD COLLINS. Pres. Security Co., Hfd, Conn. LUCIUS F. ROBINSON, Hartford. ( lonn. New York City. Philadelphia. Pa. ( Baltimore. Md. I Washington, D. C. I Boston, Mas-. ' Providence. R. I. Chicago, III. St. Louis. Mo. Hartford. Conx. BRiDGEror.r. Conn. Cleveland. Ohio. Pittsburg, Pa. San Francisco, Cal. Denver. Col. Charleston. S. C Birmingham, Ala. New Orleans. La. OFFICES. Office. 1 CO Broadwav. 432 Walnut St. " Chamber Commerce. " 531 Eleventh St.. N.W. 125 Milk St. " 29 Weybosset St. ICO Jackson St. " 310 North Fourth St. " 650 Main Street. " 1 Sanford Building. " 208 Superior St. 401 Wood St. " 306 Sansome s*. " 210-215 Tabor Op. Bldg. " 44 Broad St. " 2021 First Ave. " 818 Gravier St.
PUBLISHED BY THE HARTFORD STEAM BOILER INSPECTION AND INSURANCE COMPANY, Vol. XXII. HARTFORD, CONN., MAY, 1901. No. 5. A Common Defect in Bracing". We have discussed the matter of bracing boilers very fully in previous issues of The Locomotive; and the subject is so comparatively simple that it might be supposed that we had practically exhausted it. But there is always something more to be said about every topic under the sun,— even about bracing. These remarks are called forth by the fact that boiler makers have a habit of not making their braces equally strong in all parts. "We have met with numerous cases of this sort, and have called the attention of the builders to the trouble, as the occasions arose ; but quite recently we met with a boiler right out of the shop of one of the best builders in the country, and were informed, when we called attention to the defect, that its importance had been hitherto overlooked in the shop in question. Hence we coucluded that an article in The Locomotive, calling general attention to the point, would be timely. In order to fix the ideas, let us consider the brace shown in the accompanying illustration (Fig. 1), which was recently met with in our work of inspection. The boiler I ""7 — IX _i_ Fig. 1.— Illustrating Weakness Across Rivet Hole. B '/z THICK BLADE from which this was taken was new, and was supposed to be built in accordance with specifications issued by the Hartford Steam Boiler Inspection and Insurance Company. These specifications required that each brace should have an area of at least one square inch, in the weakest part. The body of the brace was round, and 1£ inches in diameter, as indicated in the illustration. If the brace were precisely of the specified diameter in the body, it would have a sectional area, in that part, of 0.994 sq. in., which is near enough to the required full square inch to be accepted as conforming to the specifications. The blade of this brace, however, was only 2\ in. wide and £ in. thick; and it con- tained two rivet-holes, each || in. in diameter. If the resistance of the brace to fracture across the line AB, in Fig. 1, is considered, it will be seen that the sectional area here is much smaller than it is in the body of the brace. The area resisting fracture along AB is shown by the shaded portions of Fig. 2. The diameter of the rivet-hole being || in. (the decimal for which is 0.937 in.), the combined width of the shaded parts is
Page 6 and 7:
3> n.2.2.
Page 8 and 9:
THE LOCOMOTIVE. [January, fl u* "«
Page 10 and 11:
4 THE LOCOMOTIVE. [January, (240.)
Page 12 and 13:
Q THE LOCOMOTIVE. [January, (265.)
Page 14 and 15:
g THE LOCOMOTIVE. [January Standard
Page 16 and 17:
jq THE LOCOMOTIVE. [January, its al
Page 18 and 19:
12 THE LOCOMOTIVE. [January. with s
Page 20 and 21: 14 THE LOCOMOTIVE. [January, admitt
Page 22 and 23: Incorporated 1866. Charter Per- pet
Page 24 and 25: 1 g THE LOCOMOTIVE. [February, that
Page 26 and 27: : 20 THE LOCOMOTIVE. [February, Ins
Page 28 and 29: 22 THE LOCOMOTIVE
Page 30 and 31: 94 THE LOCOMOTIVE. [February. Of de
Page 32 and 33: 26 T PIE LOCOMOTIVE. [February, fac
Page 34 and 35: 28 THE LOCOMOTIVE. [February. HARTF
Page 36 and 37: 30 THE LOCOMOTIVE. [February, Gray
Page 40 and 41: 34 THE LOCOMOTIVE [March, warped su
Page 42 and 43: 36 THE LOCOMOTIVE. |M AI*CH . and t
Page 44 and 45: 38 THE LOCOMOTIVE [March, The total
Page 46 and 47: 40 THE LOCOMOTIVE. [March, W)kt Utt
Page 48 and 49: 42 THE LOCO M T I V E . [March, tes
Page 50 and 51: 44 THE LOCOMOTIVE. [March, have som
Page 52 and 53: 46 THE LOCOMOTIVE. - [March, U. S.
Page 56 and 57: 50 THE LOCOMOTIVE. [April, to the b
Page 58 and 59: 52 THE LOCOMOTIVE. [April, above),
Page 60 and 61: 54 THE LOCOMOTIVE. [April, (14.)
Page 62 and 63: 56 THE LOCOMOTIVE. [April, SI (it i
Page 64 and 65: 58 THE LOCOMOTIVE. [April, image wi
Page 66 and 67: 60 THE LOCOMOTIVE [April, estimates
Page 68 and 69: 62 THE LOCOMOTIVE. [April, problem
Page 72 and 73: 66 THE LOCOMOTIVE. [May, 2.25 —0.
Page 74 and 75: 68 THE LOCOMOTIVE. [.May, by Charle
Page 76 and 77: 70 THE LOCOMOTIVE. [May, the entire
Page 78 and 79: 72 THE LOCOMOTIVE. [May, The compet
Page 80 and 81: 74 THE LOCOMOTIVE. [May, SB lit Xtt
Page 82 and 83: 76 THE LOCOMOTIVE. [May, the main e
Page 84 and 85: 73 THE LOCOMOTIVE. [May, Greece has
Page 86: Incorporated 1866. Charter Per- pet
Page 89 and 90: 1901.] THE LOCOMOTIVE. 83 (It may h
Page 91 and 92: 1901.] THE LOCOMOTIVE. a 85 Again,
Page 93 and 94: 1901.] THE LOCOMOTIVE. qj and consi
Page 95 and 96: 1901.] THE LOCOMOTIVE. 59 (98.) —
Page 97 and 98: 1901.] THE LOCOMOTIVE. Q^ How Cloth
Page 99 and 100: 1901.] THE LOCOMOTIVE. §3 compound
Page 101 and 102: 1901.] THE LOCOMOTIVE. 95 cottonsee
Page 103: She jfttotmrtttre* PUBLISHED BY THE
Page 106 and 107: 100 THE LOCOMOTIVE. [July, near Ogd
Page 108 and 109: 102 THE LOCOMOTIVE. [July, t S**iMI
Page 110 and 111: 104 THE LOCOMOTIVE. [July, gated, c
Page 112 and 113: 106 THE LOCOMOTIVE. [July, material
Page 114 and 115: 108 THE LOCOMOTIVE. [July, complete
Page 116 and 117: HO THE LOCOMOTIVE. [July, on the co
Page 120 and 121:
114 THE LOCOMOTIVE. [August, shear
Page 122 and 123:
116 THE LOCOMOTIVE. [August, Turnin
Page 124 and 125:
118 THE LOCOMOTIVE. (August, age ha
Page 126 and 127:
120 THE LOCOMOTIVE. [August, t flta
Page 128 and 129:
122 THE LOCOMOTIVE. [August, requir
Page 130 and 131:
124 THE LOCOMOTIVE. [August, knots,
Page 132 and 133:
126 THE LOCOMOTIVE. [August, such f
Page 134 and 135:
Incorporated 1866. Charter Per- pet
Page 136 and 137:
130 THE LOCOMOTIVE, [September, To
Page 138 and 139:
132 THE LOCOMOTIVE. [September, "We
Page 140 and 141:
134 THE LOCOMOTIVE. [September, H$f
Page 142 and 143:
136 THE LOCOMOTIVE. [.September, en
Page 144 and 145:
138 THE LOCOMOTIVE. [September, fou
Page 146 and 147:
140 THE LOCOMOTIVE. [September, as
Page 148 and 149:
142 THE LOCOMOTIVE. [September, the
Page 150 and 151:
Page 152 and 153:
146 TH E LOCO .MOT I VE. [October,
Page 154 and 155:
148 THE LOCO MOTIVE [October, Supt.
Page 156 and 157:
^50 THE L C OMOTIVE. |October, HART
Page 158 and 159:
152 THE LOCOMOTIVE. [October, The u
Page 160 and 161:
154 THE LOCOMOTIVE. [October, tion
Page 162 and 163:
156 THE LOCOMOTIVE. [October. in am
Page 164 and 165:
^58 T H E L O C O M OTIVE. [October
Page 166 and 167:
Page 168 and 169:
162 THE LOCOMOTIVE. [November, sinc
Page 170 and 171:
164 THE LOCOMOTIVE.
Page 172 and 173:
16(3 THE LOCOMOTIVE. [November, Ber
Page 174 and 175:
163 THE LOCOMOTIVE. |November, $t t
Page 176 and 177:
170 THE LOCOMOTIVE. [November, All
Page 178 and 179:
172 THE LOCOMOTIVE. [November, In i
Page 180 and 181:
174 THE LOCOMOTIVE. [November, The
Page 182 and 183:
Page 184 and 185:
178 THE LOCOMOTIVE. [December, that
Page 186 and 187:
130 THE LOCOMOTIVE. [December, Insp
Page 188 and 189:
132 THE LOCOMOTIVE. [December, and
Page 190 and 191:
184 THE LOCOMOTIVE. [December, Mkt
Page 192 and 193:
186 T1IE LOCOMOTIVE. [Decembek, pro
Page 194 and 195:
188 THE LOCOMOTIVE. [December, In E
Page 196 and 197:
190 THE LOCOMOTIVE. [December, that
Page 198:
Incorporated 1866. Chartd Per- petu
show all

The Locomotive - Lighthouse Survival Blog

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?