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 32
... valve , by which , at every ascent of the piston , the air is discharged from the cylinder which was admitted with ... valve , it will lift up the valve and escape . The water in the boiler being supposed to be in a strong state of ...
... valve , by which , at every ascent of the piston , the air is discharged from the cylinder which was admitted with ... valve , it will lift up the valve and escape . The water in the boiler being supposed to be in a strong state of ...
Σελίδα 33
... valve s , and issue through the pipe ; at first , slowly and very cloudy , being mixed with much air , the cloudy appearance of steam being always owing to its mixture with common air . The blast at s will grow stronger by degrees , and ...
... valve s , and issue through the pipe ; at first , slowly and very cloudy , being mixed with much air , the cloudy appearance of steam being always owing to its mixture with common air . The blast at s will grow stronger by degrees , and ...
Σελίδα 58
... valve , called the blowing valve , is opened , which permits the steam to enter the cylinder and condenser , and drive out the air . When the air is expelled , which may be known by the crackling noise and ebullition which takes place ...
... valve , called the blowing valve , is opened , which permits the steam to enter the cylinder and condenser , and drive out the air . When the air is expelled , which may be known by the crackling noise and ebullition which takes place ...
Σελίδα 63
... valve ; that of Mr. Watt was of the lever kind ; the valve itself is conical , and so loaded that its weight may exceed the force of the steam within . As soon as the pressure exceeds the load on the valve , it lifts it up , and the ...
... valve ; that of Mr. Watt was of the lever kind ; the valve itself is conical , and so loaded that its weight may exceed the force of the steam within . As soon as the pressure exceeds the load on the valve , it lifts it up , and the ...
Σελίδα 66
... valve of the pump bucket breaking , the engine suddenly lost its load or resistance , which occasioned the piston to ... valve ; but if the engine descends so low as to strike on the spring beam , a catch pin on the beam strikes a small ...
... valve of the pump bucket breaking , the engine suddenly lost its load or resistance , which occasioned the piston to ... valve ; but if the engine descends so low as to strike on the spring beam , a catch pin on the beam strikes a small ...
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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