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 13
... pounds of the Irish clergy , to enable him to embark and fetch fifty thousand pounds ; like an alchymist who begs a trifle of money , for the secret of making gold ; " -when , according to another author , " he had not a groat in his ...
... pounds of the Irish clergy , to enable him to embark and fetch fifty thousand pounds ; like an alchymist who begs a trifle of money , for the secret of making gold ; " -when , according to another author , " he had not a groat in his ...
Σελίδα 15
... pounds of the Irish clergy , to enable him to embark and fetch fifty thousand pounds ; like an alchymist who begs a trifle of money , for the secret of making gold ; " -when , according to another author , " he had not a groat in his ...
... pounds of the Irish clergy , to enable him to embark and fetch fifty thousand pounds ; like an alchymist who begs a trifle of money , for the secret of making gold ; " -when , according to another author , " he had not a groat in his ...
Σελίδα 25
... 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 area , we can never ...
... 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 area , we can never ...
Σελίδα 32
... pound beneath each square inch of the safety valve , it will lift up the valve and escape . The water in the boiler being supposed to be in a strong state of ebullition , and the steam issuing by the safety valve , we will consider the ...
... pound beneath each square inch of the safety valve , it will lift up the valve and escape . The water in the boiler being supposed to be in a strong state of ebullition , and the steam issuing by the safety valve , we will consider the ...
Σελίδα 36
... pound per square inch greater than that of the air , rushes into the cylinder , when it immediately blows open the snifting valve , and assists the water which had come in by the for- mer injection , and what arose from the condensed ...
... pound per square inch greater than that of the air , rushes into the cylinder , when it immediately blows open the snifting valve , and assists the water which had come in by the for- mer injection , and what arose from the condensed ...
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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