Handbook on Engineering: The Practical Care and Management of Dynamos, Motors, Boilers, Engines, Pumps, Inspirators and Injectors, Refrigerating Machinery, Hydraulic Elevators ... Air Compressors ... and All Branches of Steam Engineering
H.C. Tulley & Company, 1902 - 906 páginas
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action adjustment allow amount armature bearing become boiler brushes cause cent circuit clean close coal coil connected construction crank cut-off cylinder diameter difference direction distance divide eccentric effect engine equal exhaust expansion feet fire flow force furnace gauge give given governor head heat holes inches increase indicator iron joints lead length less lever lower machine magnet mark material means minute motion move nearly necessary operation opposite passes pipe piston plate port position possible pounds practice pressure prevent proper pump regulator remove result rivets safety shaft shell shown shows side space speed spring square inch steam strength stroke sure surface taken temperature thickness tubes turn valve weight wire
Página 395 - CALORIE is the amount of heat required to raise the temperature of one kilogram of water one degree centigrade.
Página 402 - The ash pits should be thoroughly cleaned at once after starting. Before the end of the test the fires should be burned low, just as before the start, and the fires cleaned in such a manner as to leave the same amount of fire, and in the same condition, on the grates as at the start.
Página 322 - ... to be Used in the computation. All surfaces below the mean water level which have water on one side and products of combustion on the other are to be considered as water-heating surface, and all surfaces above the mean water level which have steam on one side and products of combustion on the other are to be considered as superheating surface.
Página 403 - The coal should be weighed and delivered to the fireman in equal proportions, each sufficient for not more than one hour's run, and a fresh portion should not be delivered until the previous one has all been fired. The time required to consume each portion should be noted, the time being recorded at the instant of firing the last of each portion.
Página 404 - ... corrected according to the average results of the calorimeter tests. On account of the difficulty of securing accuracy in these tests the greatest care should be taken in the measurements of weights and temperatures. The thermometers should be accurate...
Página 404 - The analysis of the flue gases is an especially valuable method of determining the relative value of different methods of firing, or of different kinds of furnaces. In making these analyses great care should be taken to procure average samples, since the composition is apt to vary at different points of the flue...
Página 401 - ... while the water is in a quiescent state, just before lighting the fire. At the end of the test remove the whole fire...
Página 777 - Divide the number of square inches of belt in contact with the pulley by two, multiply this quotient by velocity of the belt in feet per minute and divide the product by 33,000; the quotient is the number of horse-power.
Página 86 - If the break is in the coil itself, rewinding is generally the only cure. But this may be remedied temporarily by connecting together by wire or solder the two commutator-bars or coil terminals between which the break exists.