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 24
... beam , or ( as it is called in some of the coal districts ) the loggerhead , for the purpose of communicating the motion of the piston to the pumps in the mine . A sufficient quantity of steam is first formed in the boiler , when the ...
... beam , or ( as it is called in some of the coal districts ) the loggerhead , for the purpose of communicating the motion of the piston to the pumps in the mine . A sufficient quantity of steam is first formed in the boiler , when the ...
Σελίδα 25
... , attached the lever which worked the valve to the beam by means of a cord and weight , by which addi- tion the engine itself produced the necessary motion . This 2 . E POTTER'S S SCOGGER 25 in the cylinder, the pipe o is of such ...
... , attached the lever which worked the valve to the beam by means of a cord and weight , by which addi- tion the engine itself produced the necessary motion . This 2 . E POTTER'S S SCOGGER 25 in the cylinder, the pipe o is of such ...
Σελίδα 26
... beam . This engine was erected in 1718 , and , besides the improvement men- tioned , it was the first engine in which a steel - yard safety valve was used . But to the celebrated Mr. Smeaton , more than any other person , except the ...
... beam . This engine was erected in 1718 , and , besides the improvement men- tioned , it was the first engine in which a steel - yard safety valve was used . But to the celebrated Mr. Smeaton , more than any other person , except the ...
Σελίδα 27
... beam so much , as reduced the load upon the piston from 10 lbs . to 8 lbs . per inch . Under this load , though it shortened the stroke at the pump end , the engine went so much quicker as not only to raise more water , but consume less ...
... beam so much , as reduced the load upon the piston from 10 lbs . to 8 lbs . per inch . Under this load , though it shortened the stroke at the pump end , the engine went so much quicker as not only to raise more water , but consume less ...
Σελίδα 28
... beams , which extend across the house , and are let into the side - wall . G , the piston , made to fit the cylinder exactly , but with liberty to slide up and down ; it has a flanch rising four or five inches upon its upper surface ...
... beams , which extend across the house , and are let into the side - wall . G , the piston , made to fit the cylinder exactly , but with liberty to slide up and down ; it has a flanch rising four or five inches upon its upper surface ...
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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