. The Locomotive . rmingham, ; Charleston, S. New Orleans, La. OFFICES. Office, 285Broad\ Walnut Milk St. 29 Weybosset Jackson North Fourlh Main 1 Sanford Building. 209 Superior St.;J0C Sansome St. 7(1 Railroad North 19th St. 44 Broad Gravier St. ^h J0r0m0tjtie. PUBLISHED BY THE HARTFORD STEAM BOILER INSPECTION AND INSURANCE COMPANY. New Series —Vol. XVII. HARTFORD, CONN., MAY, 1896. No. 5. Brass Blow-OfF Pipes. In previous issues of The Locomotive, we have discussed the general arrangementof blow-off pipes,
. The Locomotive . rmingham, ; Charleston, S. New Orleans, La. OFFICES. Office, 285Broad\ Walnut Milk St. 29 Weybosset Jackson North Fourlh Main 1 Sanford Building. 209 Superior St.;J0C Sansome St. 7(1 Railroad North 19th St. 44 Broad Gravier St. ^h J0r0m0tjtie. PUBLISHED BY THE HARTFORD STEAM BOILER INSPECTION AND INSURANCE COMPANY. New Series —Vol. XVII. HARTFORD, CONN., MAY, 1896. No. 5. Brass Blow-OfF Pipes. In previous issues of The Locomotive, we have discussed the general arrangementof blow-off pipes, and the proper method of connecting and protecting them, on exter-nally fired boilers, where they are to be exposed to high temperatures. We have alsostated that brass is not a safe material for blow-off pipes of this sort, since it softensand loses its strength at temperatures that have no sensible effect upon iron; and insupport of this view we have illustrated one or two brass blow-off pipes that have failed. Bursted Brass Blow-Off Pipes. in actual service. The cases that we have recorded in this journal have been assumed,by some engineers, to be isolated instances, due, probably, to some defect in the piping,and not representing what may be expected in ordinary good practice. We cannotallow such an idea to become current without entering a vigorous protest, for we find,in our own experience, that brass blow-offs give out very often indeed, when used onexternally fired boilers. In support of this statement we present herewith a photo-engraving which shows afew of the failures of this sort that have occurred during the past year in one of ourinspection districts. The significance of these failures becomes clearer when it isremembered that the use of brass for blow-offs is by no means common; so that even a Q5 THELOCO MOTIVE. [May, small number of failures represents a considerable percentage of the total number ofsuch pipes that are in use. We do not say that a brass blow-o
Size: 2079px × 1202px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorhartfordsteamboilerin, bookcentury1800, bookdecade1860
