Elementary Introduction to Practical Mechanics: Illustrated by Numerous ExamplesLongmans, 1870 - 324 страници |
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Страница 10
... turn ; and if the range of temperature is from 60 ° F. to 240 ° F .; determine the number of times the bars must be heated before the operation is complete , and the pressure which would tend to draw the walls together if they were ...
... turn ; and if the range of temperature is from 60 ° F. to 240 ° F .; determine the number of times the bars must be heated before the operation is complete , and the pressure which would tend to draw the walls together if they were ...
Страница 12
... turn ; and if the range of temperature is from 60 ° F. to 240 ° F .; determine the number of times the bars must be heated before the operation is complete , and the pressure which would tend to draw the walls together if they were ...
... turn ; and if the range of temperature is from 60 ° F. to 240 ° F .; determine the number of times the bars must be heated before the operation is complete , and the pressure which would tend to draw the walls together if they were ...
Страница 27
... turn a wheel whose modulus is 0.6 . The wheel lifts water from the bottom of the fall to a height of 54 ft .; how many cubic feet will be thus raised per minute ? If the water were raised from the top of the fall to the same point ...
... turn a wheel whose modulus is 0.6 . The wheel lifts water from the bottom of the fall to a height of 54 ft .; how many cubic feet will be thus raised per minute ? If the water were raised from the top of the fall to the same point ...
Страница 29
... turning unladen 6.0 531,000 1480 44 34 0.38 carrying 6.0 406,000 1130 145 8 0.09 Labourer wheeling ma- terials in a barrow up an incline of 1 in 12 10.0 313,000 520 130 4 0.045 and returning with the empty barrow Labourer lifting earth ...
... turning unladen 6.0 531,000 1480 44 34 0.38 carrying 6.0 406,000 1130 145 8 0.09 Labourer wheeling ma- terials in a barrow up an incline of 1 in 12 10.0 313,000 520 130 4 0.045 and returning with the empty barrow Labourer lifting earth ...
Страница 34
... turning a winch ( 4 ) Labourer turning a capstan ( 5 ) Horse in a whim gin trotting ( 6 ) Horse in a whim gin walking ( 7 ) Horse walking in a cart ( 8 ) Steam engine , duty 20 millions ( 9 ) Steam engine , duty 90 millions 88.67 pence ...
... turning a winch ( 4 ) Labourer turning a capstan ( 5 ) Horse in a whim gin trotting ( 6 ) Horse in a whim gin walking ( 7 ) Horse walking in a cart ( 8 ) Steam engine , duty 20 millions ( 9 ) Steam engine , duty 90 millions 88.67 pence ...
Често срещани думи и фрази
accelerative effect angle of resistance angular angular velocity axis axle beam body brickwork cast iron centre of gravity circle circumference coefficient of friction Crown 8vo cubic foot curve cylinder described determine the number diameter direction distance draw Edition engine epicycloid equal equation equilibrium expended extrados forces acting formula given hence horizontal horse-power inclined inclined plane last Example length limiting angle line of resistance mass middle point minute moment of inertia motion moving number of feet number of units oscillation P₁ parallel forces perpendicular plane pressure principle of moments Prop pulley radius raised reaction represent respectively rest resultant right angles rope round screw sliding space square inch steam suppose surface teeth thick thread tion triangle vertical virtual velocities vols wall weight wheel Woodcuts wrought iron
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