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 EngineeringH.C. Tulley & Company, 1902 - 906 стор. |
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Інші видання - Показати все
Загальні терміни та фрази
adjusted alternating current ammeter amperes armature belt binding post boiler brushes carbon cause cent check valve circuit clean coal commutator condenser connected Corliss engine crank cross-head cubic current flowing curve cut-off cylinder diagram diameter direction divide drum dynamo electromotive force elevator engine equal evaporated exhaust feet field coils fire furnace gauge governor horse-power increase induced injector iron lamps length lever lines of force load lubricator machine magnetic flux main valve mean effective pressure minute motion motor move multiply number of teeth operation pass pipe piston plate poles port position pounds pulley pump regulator resistance revolutions revolutions per minute rivets rope rotation screw segment self-induction shaft shown in Fig shunt side slide valve spark speed square inch steam pressure stop strength stroke suction switch temperature tubes turn velocity voltage volts weight wheel wire
Популярні уривки
Сторінка 407 - Steam being raised to the working pressure, remove rapidly all the fire from the grate, close the damper, clean the ash-pit, and as quickly as possible start a new fire with weighed wood and coal, noting the time...
Сторінка 401 - CALORIE is the amount of heat required to raise the temperature of one kilogram of water one degree centigrade.
Сторінка 410 - These are the measurement of the air supply, the determination of its contained moisture, the determination of the amount of heat lost by radiation, of the amount of infiltration of air through the setting, and (by condensation of all the steam made by the boiler) of the total heat imparted to the water.
Сторінка 408 - 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...
Сторінка 100 - The lower limit is specified for rubber-covered wires to prevent gradual deterioration of the high insulations by the heat of the wires, but not from fear of igniting the insulation. The question of drop is not taken into consideration in the above tables.
Сторінка 100 - Insulation Resistance — The wiring in any building must test free from grounds; ie, the complete installation must have an insulation between conductors and between all conductors and the ground (not including attachments, sockets, receptacles, etc.) of not less than the following: Up to 5 amperes 4,000,000 ohms...
Сторінка 788 - As 7 is to 22, so is the diameter to the circumference : or, as 22 is to 7, so is the circumference to the diameter.
Сторінка 789 - 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. Example. — A...
Сторінка 90 - Remedy. — The trouble is often found where the armature wires connect with the commutator and not in the coil itself, and the break may be repaired or the loose wire may be resoldered or screwed back in place. If the trouble is due to a broken commutator connection and it cannot be fixed, then connect the disconnected bar to the next by solder, or
Сторінка 409 - If the boiler is connected to a main steam-pipe with other boilers, the safety valve on the boiler being tested should be set a few pounds higher than those of the other boilers, so that in case of a rise in pressure the other boilers may blow off, and the pressure be reduced by closing their dampers, allowing the damper of the boiler being tested to remain open, and firing as usual. All...