Farm Engines and how to Run Them: The Young Engineer's Guide ...F. J. Drake & Company, 1903 - 215 стор. |
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Сторінка 18
... explosion . If some of the pressure is taken off , this overheated water may suddenly burst into steam and cause an explosion , as the safety valve blows off , for example ( since the safety valve re- lieves some of the pressure ) ...
... explosion . If some of the pressure is taken off , this overheated water may suddenly burst into steam and cause an explosion , as the safety valve blows off , for example ( since the safety valve re- lieves some of the pressure ) ...
Сторінка 49
... the firebox , putting out the fire and giving the boiler relief so that an explosion would be avoided . In some states a fusible plug is required by law , and one is found in nearly every boiler. THE SIMPLE ENGINE . 49 ...
... the firebox , putting out the fire and giving the boiler relief so that an explosion would be avoided . In some states a fusible plug is required by law , and one is found in nearly every boiler. THE SIMPLE ENGINE . 49 ...
Сторінка 57
... explosion of a boiler is from not having sufficient water in the boiler . The boiler is filled in the first place ... explode your boiler . The glass gauge is not to be depended upon , however , for a number of things may happen to ...
... explosion of a boiler is from not having sufficient water in the boiler . The boiler is filled in the first place ... explode your boiler . The glass gauge is not to be depended upon , however , for a number of things may happen to ...
Сторінка 59
... explosion , beside poor mate- rial in the manufacture of the boiler , is too high steam pressure , due to a defective safety valve or imperfect team gauge . The steam gauge is likely to get out of order in a number of ways , and so is ...
... explosion , beside poor mate- rial in the manufacture of the boiler , is too high steam pressure , due to a defective safety valve or imperfect team gauge . The steam gauge is likely to get out of order in a number of ways , and so is ...
Сторінка 69
... explosion it may be necessary to draw the fire out entirely ; but under no circumstances should cold water be thrown on . After drawing the fire close all doors and dampers . FIRING WITH WOOD . Always keep the fire door shut as much as ...
... explosion it may be necessary to draw the fire out entirely ; but under no circumstances should cold water be thrown on . After drawing the fire close all doors and dampers . FIRING WITH WOOD . Always keep the fire door shut as much as ...
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adjusted back pressure belt blow carbon cause check valve clean close coal cold compound engine condenser cool crank pin cross-head crown sheet cylinder engine draft drain cock eccentric economy exhaust steam expansive explosion fire firebox flywheel force friction clutch fuel fusible plug gasoline engine gauge cock gear globe valve governor grain grate surface grease heater heating surface holes horsepower inch injector iron keep leak locomotive loose lubricated machine metal molecules oxygen pass pipe piston rod plate port pounds prevent pulley pump return flue boiler reverse lever safety valve screw shaft shoes side sieve smoke spark spark arrester speed square stacker steam cylinder steam engine steam gauge steam pressure steel stick stop straw stroke stuffing box stuffing-box supply tank threshing throttle tight TRACTION ENGINE tube turn type of boiler usually water gauge wear wood
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Сторінка 187 - To find the pressure in pounds per square inch of a column of water, multiply the height of the column in feet by .434. Approximately, we say that every foot elevation is equal to % Ib. pressure per square inch ; this allows for ordinary friction. To find the diameter of a pump cylinder...
Сторінка 187 - To find the diameter of a circle multiply circumference by .31831. To find circumference of a circle multiply diameter by 3.1416. To find area of a circle multiply square of diameter by .7854. To find surface of a ball multiply square of diameter by 3.1416. To find side of an equal square multiply diameter by .8862.
Сторінка 181 - It is an invisible vapor generated from water by the application of heat. Q. What are the properties which make it so valuable to us? A. (1) The ease with which we can condense it. (2) Its great expansive power. (3) The small space it occupies when condensed. Q. Why do you condense the steam? A. To form a vacuum and so destroy the back pressure that would otherwise be on the piston, and thus get more useful work out of the steam. Q. What is vacuum? A. A space void of air.
Сторінка 176 - Let the steam outlets remain as they are. 3. In Case of Foaming. — Close throttle, and keep closed long enough to show true level of water. If that level is sufficiently high, feeding and blowing will usually suffice to correct the evil. In case of violent foaming, caused by dirty water, or change from salt to fresh or vice versa, in addition to the action above stated, check draft and cover fires with fresh coal.
Сторінка 187 - To find capacity of tanks any size ; given dimensions of a cylinder in inches, to find its capacity in US gallons : Square the diameter, multiply by the length and by .0034. To ascertain heating surface in tubular boilers, multiply two-thirds...
Сторінка 187 - J\ gallons, 1728 cubic inches, and weighs 62^ pounds. To find the pressure in pounds per square inch of a column of water multiply the height of the column in feet by .434. Steam rising from water at its boiling point (212...
Сторінка 187 - ... the pipe. Given the dimensions of a cylinder in inches, to find its capacity in US gallons: Square the diameter, multiply by the length and by .0034. If d ~ diameter, I = length, gallons = d