History and Progress of the Steam Engine: With a Practical Investigation of Its Structure and ApplicationThomas Kelly, 1839 - 859 σελίδες |
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Σελίδα 15
... pressure , which could be re- quired for raising water to a given height , because the L pressure in such a boiler will never exceed the weight. The Marquis of Worcester's Engine , 1663 . ( Savery's Patent Engine . 1699. ) WORCESTER'S ...
... pressure , which could be re- quired for raising water to a given height , because the L pressure in such a boiler will never exceed the weight. The Marquis of Worcester's Engine , 1663 . ( Savery's Patent Engine . 1699. ) WORCESTER'S ...
Σελίδα 24
... pressure , and prevents explosion . c is the cylinder , open at the top , having three holes at the bot- tom , def . The hole e admits the steam from the boiler ; the hole d admits a jet of cold water from the reservoir g , in order to ...
... pressure , and prevents explosion . c is the cylinder , open at the top , having three holes at the bot- tom , def . The hole e admits the steam from the boiler ; the hole d admits a jet of cold water from the reservoir g , in order to ...
Σελίδα 25
... pressure of one or two pounds on the inch on the boiler was sufficient to work the engine . The power must be regulated by the area of the piston , because , as the pressure of the air sel- dom exceeds 144 lbs . on an inch in a given ...
... pressure of one or two pounds on the inch on the boiler was sufficient to work the engine . The power must be regulated by the area of the piston , because , as the pressure of the air sel- dom exceeds 144 lbs . on an inch in a given ...
Σελίδα 34
... pressure on the surface of the water in the injection cistern , and therefore the water spouts rapidly through the holes d , by the joint action of the column P , and the unbalanced pressure of the atmosphere ; at the same time the ...
... pressure on the surface of the water in the injection cistern , and therefore the water spouts rapidly through the holes d , by the joint action of the column P , and the unbalanced pressure of the atmosphere ; at the same time the ...
Σελίδα 35
... pressure of the air on the bottom . Its own weight is not at all equal to this pressure ; and , instead of its being necessary to support it by a strong floor , it must be kept down by large beams , loaded at the end with heavy walls ...
... pressure of the air on the bottom . Its own weight is not at all equal to this pressure ; and , instead of its being necessary to support it by a strong floor , it must be kept down by large beams , loaded at the end with heavy walls ...
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admitted aperture apparatus applied atmosphere attached axis axle bars beam boiler bottom cause centre chimney circular cistern coal cock communication condenser connected connecting rod construction crank cylinder descend described diameter eduction effect elastic equal escape expansion experiments feet fire fixed flue fluid fly-wheel force friction frustrum fuel furnace groove heat hole hollow horizontal improvements inch inches of mercury inclined plane injection invention iron Jacob Perkins lever Liverpool London lower machine machinery means metal motion moving packing paddle-wheel paddles pass patent piston rod placed plate pounds pressure prevent produced propelling pump purpose quantity rail rail-way represents revolving ring rotary engine rotatory round screwed shaft shut side sliders sliding smoke steam boats steam carriage steam engine steam pipe stroke stuffing box supply surface temperature tion tube turn upper vacuum valve vapour velocity vertical Watt weight wheel