. Railway master mechanic [microform] . nt illustration and itsfunction will be understood to be to prevent anydownward motion of the crown sheet and to providefor a Utile upward motion of the sheet to preventcramping when the fire is being kindled. The boiler is of the extended wagon-top type anddesigned to carrv 200 lbs. pressure per square inch.;to be tested with steam pressure at 25 per cent, andwith water 40 per cent, above working barrel is of sheets ?4 and 1 3-16 in. thick, rivetedwith 1-in. rivets: the longitudinal seams being sex-tuple riveted, with welt strips inside and
. Railway master mechanic [microform] . nt illustration and itsfunction will be understood to be to prevent anydownward motion of the crown sheet and to providefor a Utile upward motion of the sheet to preventcramping when the fire is being kindled. The boiler is of the extended wagon-top type anddesigned to carrv 200 lbs. pressure per square inch.;to be tested with steam pressure at 25 per cent, andwith water 40 per cent, above working barrel is of sheets ?4 and 1 3-16 in. thick, rivetedwith 1-in. rivets: the longitudinal seams being sex-tuple riveted, with welt strips inside and out; thecircumferential seams are double riveted. Some of the principal data for these locomotivesare as follows: Cylinders 22 ins. diameter, 28 ins. stroke. Driving wheels, diameter 56 ids. Driving wheels, base 17 ft. Diameter boiler, first ring 70 ins. Number of tubes 347 Diameter of tubes 2 ms. Length of tubes 14 ft. 2% ins. Heating surface, tubes 2566 sq. ft. Heating surface, firebox 239 sq. ft. Heating surface, total 2805 sq. November, 1898. RAILWAY MASTER MECHANIC. 153
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895
