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 25
... consists entirely of the pressure of the atmosphere , differing essentially from Papin and Savery , both of whom used the force of steam as well as a vacuum . By this method the danger of burst- ing the boiler was nearly obviated , as ...
... consists entirely of the pressure of the atmosphere , differing essentially from Papin and Savery , both of whom used the force of steam as well as a vacuum . By this method the danger of burst- ing the boiler was nearly obviated , as ...
Σελίδα 53
... consists of a hoop * This required a degree of perfection in the art of boring , which had not been attained previously to the time of Watt . The method hitherto adopted had been to depend upon the accuracy of the casting for the ...
... consists of a hoop * This required a degree of perfection in the art of boring , which had not been attained previously to the time of Watt . The method hitherto adopted had been to depend upon the accuracy of the casting for the ...
Σελίδα 58
... consists of a tube immersed in cold water , and connected at the bottom by a pipe to a pump , which is worked by the rod , 4. The use of this pump is to preserve the va- cuum by drawing off uncondensed vapour and the water of injection ...
... consists of a tube immersed in cold water , and connected at the bottom by a pipe to a pump , which is worked by the rod , 4. The use of this pump is to preserve the va- cuum by drawing off uncondensed vapour and the water of injection ...
Σελίδα 61
... consists in shutting off the steam from the cylinder , some time before the piston has com- pleted its stroke , so that the remainder may be performed by the expansion of the steam already contained in the cylinder . This serves as a ...
... consists in shutting off the steam from the cylinder , some time before the piston has com- pleted its stroke , so that the remainder may be performed by the expansion of the steam already contained in the cylinder . This serves as a ...
Σελίδα 118
... consists of two rings of brass , of the full size of the cylinder , which are cut into segments , as shewn at 11 , and laid one above the other , so as to break joint . The joints , therefore , in the under ring are shewn by dotted ...
... consists of two rings of brass , of the full size of the cylinder , which are cut into segments , as shewn at 11 , and laid one above the other , so as to break joint . The joints , therefore , in the under ring are shewn by dotted ...
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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