File:The Locomotive (1867) (14766065814).jpg

Identifier: locomotive04hart (find matches)
Title: The Locomotive
Year: 1867 (1860s)
Authors: Hartford Steam Boiler Inspection and Insurance Company
Subjects: Locomotives Steam-boiler explosions
Publisher: Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
t oruptake; to provide an inverted siphon or other arrange-ment which shall insure the spring or diaphragm alwaysbeing filled or covered with a body of water while theboiler is under steam; and to so make the connectionsthat the pipemay be blownout at anytime without.^removing or disturbingthe gauge.—The gaugeshould alsoadmit of easy removal while the boiler isunder steam for the purposeof testing and correction. Some engineerfs, whenerecting boilers, attach thesteam-gauge directly to theuptake, or to the portion ofthe cast iron front whichcovers the end of the boilerand forms the front connrc-tion. This should never bedone, as under such circum-stances the heat will inevita-bly injure the spring, and thegauge will in a short timeindicate anything but the cor-rect pressure. Much troublehas been caused boiler own-ers by this practice. The gauge should be carried to one side and secured to the brickwork; or, if for any reason this is undesirable or impossible, it should be brought out
Text Appearing After Image:
Fig. 178 THE LOCOMOTIVE. (November, far enough from the boiler front to allow a good thickness of some non-conductingmaterial to be placed between it and the boiler, sufficient to effectually prevent injury. The second of the above objects is generally accomplished by attaching the gaugeto a pipe bent into the form shown in Fig. 2. This form of siphon, while it accomijlishcsperfectly what it is designed to do, namely, the keeping of a body of water on the spring,))Ossesses the disadvantage of not allowing the pipe to be cleared of sediment witlioutremoving the gauge and causing great inconvenience. Moreover, whenever a pipe bentinto this form becomes filled up with a solid deposit, which sometimes happens, it ispeculiarly difficult to clean out, owing to the impossibility of driving a rod or wire through it. It is also impossible to clear a siphon ofthis type of water when it is necessary to do so, whichoccurs when a boiler is stopped for any cause in coldweather. In such cases, unles

Note About Images