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95 Milk Street Annual Report assessment plan Boston Brooklyn buildings cent Cento Central Falls consumers consumption of water Continental Water Meter Croton Croton Aqueduct cubic foot cubic ft cubic inches Daily average Different Cities Engineer expense Fahr Fall River faucets feet per second flow foot of water furnish gallons daily gallons of water gallons per day gals Gravity high-pressure meters increased Jacksonville Jersey City Leominster liquid gallons low-pressure meters Lowell Lowest Lynchburg March 31 Mass ment meter customers meter rates meter system Milwaukee necessity Niagara Falls number of meters Ohio Pawtucket pipes piston meter Pittsburg Pittston present Providence pumped PURE WATER SUPPLY quantity of water reduced remedy revenue rotary meter Salem Springfield Steam power sumer suppressing waste system of meter Table of Water Taunton tion valve wastage waste of water water at 52 Water Board Water Meter Company Water Pressure water rates Worcester
Page 47 - ... strength of 30.3 tons per square inch, elastic limit of 12 tons, and elongation of 20.75 per cent. The tough alloy, introduced by Mr. MP Parsons, will prove a desirable substitute for the common bronze in hydraulic apparatus, where its superior strength and greater reliability will be especially valuable. APPROXIMATE BOTTOM VELOCITIES OF FLOW IN CHANNELS AT WHICH THE FOLLOWING MATERIALS BEGIN TO MOVE. 2.5 feet per second, microscopic sand and clay. .50 " " ' " fine sand, i.oo " "
Page 17 - I will cite two cases. One large hotel which, on the first application of a meter, was found to be consuming, or, rather, wasting, 115,000 gallons of water daily, is now reduced to 45,000 gallons, and another has fallen from 80,000 gallons to 24,000 gallons daily.
Page 48 - If the valve is closed and the flow checked instantaneously, this great force will act upon the valve and upon the shell of the pipe. If the given length of...
Page 7 - Population increases ; the mass of buildings thickens ; the lands upon which the town is built become saturated with sewage, and the individual sources within the town are polluted ; the atmosphere over and within the town is fouled by gases arising therefrom ; and the dangers of epidemics, fevers, and contagious diseases increase.
Page 48 - ... while the water is flowing freely under pressure, such sudden closing of the valve will produce a strain upon the pipes far greater than that due to the static head of water. For illustration, let any delivery-pipe, having a stop-valve at its outflow end, be 1 ft. diameter = di, and 5,280 ft.
Page 47 - The pressure due to a given head of water is greater within a pipe when the water is at rest than when the current is flowing through the pipe at a steady rate, for when the current is moving a portion of the force of gravity is consumed in producing that motion, and in balancing frictions.