Standard American Cyclopedia of Steam Engineering: A Treatise on the Care and Management of Steam Engines, Boilers and Dynamos ...F.J. Drake epxressly, 1913 - 1249 sider |
Inni boken
Resultat 1-5 av 100
Side 7
... square , 26 . Motors , 107 . alternating current , 116 . compound , 112 . series , 111 . shunt , 110 . Multiple arc system , 20 . Multiple series system , 21 . Negative wire , 23 . Nernst lamp , 177 . Neutral point of dynamo , 49 ...
... square , 26 . Motors , 107 . alternating current , 116 . compound , 112 . series , 111 . shunt , 110 . Multiple arc system , 20 . Multiple series system , 21 . Negative wire , 23 . Nernst lamp , 177 . Neutral point of dynamo , 49 ...
Side 15
... square , or two inches wide by one - half inch thick , or three - eighths of an inch thick by 2.67 in . wide . The heads are generally made one - eighth of an inch thicker than the shell . Riveting . Boiler rivets should be of good ...
... square , or two inches wide by one - half inch thick , or three - eighths of an inch thick by 2.67 in . wide . The heads are generally made one - eighth of an inch thicker than the shell . Riveting . Boiler rivets should be of good ...
Side 19
... square inches x pressure in pounds per square inch . It is true that the pressure is exerted against both heads , but the area of one head can only be considered for the reason that the two stresses are exerted against each other just ...
... square inches x pressure in pounds per square inch . It is true that the pressure is exerted against both heads , but the area of one head can only be considered for the reason that the two stresses are exerted against each other just ...
Side 20
... square inch . Τ T = 3 % in . ( expressed decimally = .375 in . ) . R = 30 in . + Then 55,000 × .375 ÷ 30 = 687.5 lbs . per square inch , which is the pressure at which rupture would take place provided there were no seams in the boiler ...
... square inch . Τ T = 3 % in . ( expressed decimally = .375 in . ) . R = 30 in . + Then 55,000 × .375 ÷ 30 = 687.5 lbs . per square inch , which is the pressure at which rupture would take place provided there were no seams in the boiler ...
Side 21
... square inch of sectional area on braces and stays should not exceed 6,000 lbs . It is custom- ary to consider the flange of the head and the top row of tubes as sufficient bracing for a space two inches wide above the tubes and the same ...
... square inch of sectional area on braces and stays should not exceed 6,000 lbs . It is custom- ary to consider the flange of the head and the top row of tubes as sufficient bracing for a space two inches wide above the tubes and the same ...
Vanlige uttrykk og setninger
adjusted alternating current ammonia amperes Ans.-The arc lamp armature atmospheric bars blades boiler braces brushes carbon cause cent circuit clearance coal coil combustion commutator compression compressor condenser connected crank cubic cubic foot curve cylinder diagram diameter direct current distance dynamo eccentric efficiency electricity electromotive force engine evaporation exhaust expansion feed water feet FIGURE fire flow flue friction furnace fusible plug gauge governor grate heat units heater heating surface horizontal horse power injector inside iron lamp length live steam lubrication machine magnet mechanical stokers motion motor multiplied nozzles operation passes pipe piston plate position pounds Ques reciprocating engine resistance rheostat rivets screwed shaft shown side speed square inch steam turbine steam valve stoker stroke surface condenser tank temperature tion tubes vacuum velocity vertical voltage volts water-tube boilers weight wire
Populære avsnitt
Side 107 - It has been seen that a heat unit is the quantity of heat required to raise one pound of water one degree in temperature...
Side 32 - A segment of a circle, is the figure contained by a straight line and the circumference which it cuts off.
Side 29 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Side 295 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Side 127 - The water level should be as nearly as possible the same as at the beginning of the test. If it is not the same, a correction should be made by computation, and not by operating the pump after the test is completed.
Side 43 - 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.
Side 32 - A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another : 16. And this point is called the centre of the circle.
Side 549 - One piston acts to give steam to the other, after which it finishes its own stroke and waits for its valve to be acted upon before it can renew its motion. This pause allows all the water valves to seat quietly, and removes everything like harshness of motion.
Side 136 - BTU per hour. It is also practically equivalent to an evaporation of 30 Ibs. of water from a feed water temperature of 100° F. into steam of 70 Ibs. gauge pressure.
Side 38 - A cone is a solid figure described by the revolution of a right-angled triangle about one of the sides containing the right angle, which side remains fixed.