Hand Book of Calculations for Engineers and Firemen: Relating to the Steam Engine, the Steam Boiler, Pumps, Shafting, Etc. ...T. Audel & Company, 1901 - 319 σελίδες |
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Σελίδα 58
... rope , which is to be wound around a barrel or axle 12 inches in diam- eter . Now then 2 feet = 30 inches . 50 lbs power . Radius of axle 6 ) 1500 250 lbs . answer . NOTE . There are obviously two ways by which the power of the wheel ...
... rope , which is to be wound around a barrel or axle 12 inches in diam- eter . Now then 2 feet = 30 inches . 50 lbs power . Radius of axle 6 ) 1500 250 lbs . answer . NOTE . There are obviously two ways by which the power of the wheel ...
Σελίδα 60
... rope which is coiled on the inner part through a pulley at . tached to the weight and coiling it in the opposite direction on the thicker part as in fig . 9 . We see here exemplified the principle , that the weight sus- tained by a ...
... rope which is coiled on the inner part through a pulley at . tached to the weight and coiling it in the opposite direction on the thicker part as in fig . 9 . We see here exemplified the principle , that the weight sus- tained by a ...
Σελίδα 61
... rope has been sup- posed to be so small in comparison to that of the drum or bar- rel that it has been neglected ; if it is a thick rope , then the leverage must be measured from the center of the barrel to the center of the rope ...
... rope has been sup- posed to be so small in comparison to that of the drum or bar- rel that it has been neglected ; if it is a thick rope , then the leverage must be measured from the center of the barrel to the center of the rope ...
Σελίδα 62
... rope , the wheel being introduced to diminish friction and the effect of imperfect flexibility , but the whole effect of imperfect flexi- bility and friction are not de- stroyed , although in calcula- tions , we proceed as though they ...
... rope , the wheel being introduced to diminish friction and the effect of imperfect flexibility , but the whole effect of imperfect flexi- bility and friction are not de- stroyed , although in calcula- tions , we proceed as though they ...
Σελίδα 63
... ropes all act against the power and so far lessen the weight which it is capable of raising . The moveable pulley by ... rope , or attach a sweep to the top of the axis and join a team of horses to the end of it to expedite the work ...
... ropes all act against the power and so far lessen the weight which it is capable of raising . The moveable pulley by ... rope , or attach a sweep to the top of the axis and join a team of horses to the end of it to expedite the work ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
algebra amount Answer AREAS OF CIRCLES arithmetic atmosphere belt body boiler calculations called Circum CIRCUMFERENCES AND AREAS condenser CONTAINING THE DIAMETERS crank cubic feet cubic foot cubic inches degrees denominator Diam distance divide the product divisor draw dynamo eccentric electricity equal EXAMPLES FOR EXERCISE expressed figure find the area force fraction fulcrum gallon given heating surface hence horse power inclined plane iron latent heat lever mean effective pressure means measure mechanical metal minute motion NOTE perpendicular piece pipe piston rod PROBLEM pulley pump quantity quotient radius Reduce remainder resistance revolutions per minute rope RULE safety valve screw sensible heat shaft sides solid space specific gravity square feet square inch square root STEAM BOILER steam engine strength STRENGTH OF MATERIALS subtract temperature tion triangle tube unit of heat velocity vulgar fraction wedge weight wheel and axle wire
Δημοφιλή αποσπάσματα
Σελίδα 32 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt...
Σελίδα 150 - ... multiply the second and third terms together, and divide the product by the first for the answer, which will always be of the same denomination as the third iesa.
Σελίδα 108 - Multiply all the numerators together for a new numerator, and all the denominators together for a new denominator.
Σελίδα 36 - A pile of wood 8 feet long, 4 feet wide, and 4 feet high, contains 1 cord; and a cord foot is 1 foot in length of such a pile.
Σελίδα 130 - If equals be taken from equals the remainders are equal. 4. If equals be added to unequals the wholes are unequal. 5. If equals be taken from unequals the remainders are unequal. 6. Things which are double of the same are equal to one another.
Σελίδα 261 - The distance from the center of the .shaft to the center of the eccentric is called the radius, and twice this distance is termed the "throw.
Σελίδα 37 - TABLE. 4 farthings (far. or qr.) make 1 penny, d. 12 pence " 1 .shilling, s. 20 shillings " 1 pound or sovereign, £ or sov.
Σελίδα 102 - The surface of a sphere is equal to the convex surface of the circumscribing cylinder ; and the solidity of the sphere is two thirds the solidity of the circumscribing cylinder.
Σελίδα 14 - British thermal unit (BTU) is the amount of heat required to raise one pound of water one degree Fahrenheit.
Σελίδα 31 - SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30| square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.