Water And Gas Works Appliances Manufactured By R D Wood Co
Water And Gas Works Appliances Manufactured By R D Wood Co
Rd Wood
The book Water And Gas Works Appliances Manufactured By R D Wood Co was written by author Rd Wood Here you can read free online of Water And Gas Works Appliances Manufactured By R D Wood Co book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Water And Gas Works Appliances Manufactured By R D Wood Co a good or bad book?
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EXPENSES AND ANNOYANCE. 75 intended to remain permanently in position and to be con- stantly charged with water. This was a most important advance in the design of fire- plugs, since it gave us a hydrant that in mild climates might remain ready for instant use. Its valve was placed at the bottom of the stand-pipe near the level of the top of the main pipe, and it introduced a drip, or waste, that opened by action of a spring as the main valve closed, so that all water remaining above the main v...alve in the stand- pipe at once drained off, provided the spring was still in order. This model of hydrant, which was admirable in many respects for use in southern cities, was for many years followed generally in the construction of similar apparatus in other of the larger American cities. The nozzles of these hydrants were generally placed about two feet above the ground surface, so that they might be above obstructions of mud, snow, and ice, and they were generally housed by a covering box of iron or wood, that was re- movable to afford access to the valve-rod key.
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