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
... rest , having both the steam cock and injection cock shut . The resting position or attitude of the machine is such as appears in the drawing , the pump rods , K , preponderating by their weight , and 32 SMEATON'S IMPROVEMENTS IN.
... rest , having both the steam cock and injection cock shut . The resting position or attitude of the machine is such as appears in the drawing , the pump rods , K , preponderating by their weight , and 32 SMEATON'S IMPROVEMENTS IN.
Σελίδα 34
... shut by the external pressure of the atmosphere , and prevent the entrance of air or water into the cylinder . The velocity of the injection water must therefore ra- pidly increase , and the jets dash against the bottom of the piston ...
... shut by the external pressure of the atmosphere , and prevent the entrance of air or water into the cylinder . The velocity of the injection water must therefore ra- pidly increase , and the jets dash against the bottom of the piston ...
Σελίδα 36
... shut , and if none has entered since , the piston will descend to the very bottom of the cylinder . It sometimes ... shuts the injection cock , by depressing the lever q , and at the same time he opens the regulator , by forcing down the ...
... shut , and if none has entered since , the piston will descend to the very bottom of the cylinder . It sometimes ... shuts the injection cock , by depressing the lever q , and at the same time he opens the regulator , by forcing down the ...
Σελίδα 41
... shut off , by turning the cock x ; and the steam escapes into the atmosphere through z ; and d descends in the cylinder by its preponderance in the same manner as c . During the ascent of d , c has fallen to the bottom of the cylinder r ...
... shut off , by turning the cock x ; and the steam escapes into the atmosphere through z ; and d descends in the cylinder by its preponderance in the same manner as c . During the ascent of d , c has fallen to the bottom of the cylinder r ...
Σελίδα 48
... shut it off at pleasure , as well as to open a communication from the inside of the syringe to the open air , by which the steam contained in the syringe might escape . When the communication between the cylinder and digester was opened ...
... shut it off at pleasure , as well as to open a communication from the inside of the syringe to the open air , by which the steam contained in the syringe might escape . When the communication between the cylinder and digester was opened ...
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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