Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 69
A HIGH-PRESSURE HYDRANT IN SERVICE, WITH ANENGINEER (AT THE LEFT) IN CHARGE. on every line of hose can be regulated by anengineer, who is left in charge of each hydrantwhenever a fire is burning. This engineer, by 618 PRACTICAL MECHANICS FOR BOYS merely turning a valve on top of the hydrant,… … A HIGH-PRESSURE TEST, SHOWING THE HEIGHTOF THE STREAMS. ticuJar line, or can cut off any one of the fouror five lines without disturbing the others. Sowe find that this wonderful system of water sup-ply— really the last word in modern fire-fight-ing— has all the advantages of the older methods,with…
Children's literature
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