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 70
... consequently the rods would each press with an equal force upon the points , e d . Now it would be maintained , that , because at e there is only half the leverage , therefore half the effect of the steam in b is lost ; but it will be ...
... consequently the rods would each press with an equal force upon the points , e d . Now it would be maintained , that , because at e there is only half the leverage , therefore half the effect of the steam in b is lost ; but it will be ...
Σελίδα 71
... consequently less rubbed than the middle , which is drawn through at each stroke . The decreased diameter in the middle of the rod arises from the speed being greater there than at other parts , ( the cause of which we have already ex ...
... consequently less rubbed than the middle , which is drawn through at each stroke . The decreased diameter in the middle of the rod arises from the speed being greater there than at other parts , ( the cause of which we have already ex ...
Σελίδα 94
... consequently , there will remain a resistance to the second stroke equal to of the force of the vapour men- tioned ; and to the next stroke † , and every continued stroke in this proportion ; so that , in about thirteen strokes , this ...
... consequently , there will remain a resistance to the second stroke equal to of the force of the vapour men- tioned ; and to the next stroke † , and every continued stroke in this proportion ; so that , in about thirteen strokes , this ...
Σελίδα 103
... consequently that the force up to that point had conti- nued the same as the preceding one . For instance , the force on the larger piston of Mr. Hornblower's engine is stated to be at one - fourth of the stroke , and from thence to the ...
... consequently that the force up to that point had conti- nued the same as the preceding one . For instance , the force on the larger piston of Mr. Hornblower's engine is stated to be at one - fourth of the stroke , and from thence to the ...
Σελίδα 119
... consequently between the open flap d , and one of the pistons H , when the same piston has passed the lower flap d , it also opens and re- ceives the action of the steam , which enters through G , so that the flaps may at all times ...
... consequently between the open flap d , and one of the pistons H , when the same piston has passed the lower flap d , it also opens and re- ceives the action of the steam , which enters through G , so that the flaps may at all times ...
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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