Mechanics and Engineers Book of Reference and Engineers Field BookStringer & Townsend, 1856 - 517 σελίδες |
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Σελίδα ix
... lever for communicating motion to the valve , being given , to determine the proper length for the other , 23. To inscribe any regular polygon in a given circle , 24. To construct a square upon a given right line , 25. To form a square ...
... lever for communicating motion to the valve , being given , to determine the proper length for the other , 23. To inscribe any regular polygon in a given circle , 24. To construct a square upon a given right line , 25. To form a square ...
Σελίδα xi
... Lever , The Pulley , • • The Wheel and Axle , The Inclined Plane , The Wedge , The Screw , TOOTHED WHEELS , ON THE VELOCITY OF WHEELS , DRUMS , PULLEYS , & C . STEAM POWER AND THE STEAM : ENGINE , .. • To estimate the amount of ...
... Lever , The Pulley , • • The Wheel and Axle , The Inclined Plane , The Wedge , The Screw , TOOTHED WHEELS , ON THE VELOCITY OF WHEELS , DRUMS , PULLEYS , & C . STEAM POWER AND THE STEAM : ENGINE , .. • To estimate the amount of ...
Σελίδα 21
... lever for communicating motion to the valve , being given , to determine the proper length for the other . On any right line , as A B , describe a circle A D , equal to the throw of eccentric and travel of valve ; then from C as a ...
... lever for communicating motion to the valve , being given , to determine the proper length for the other . On any right line , as A B , describe a circle A D , equal to the throw of eccentric and travel of valve ; then from C as a ...
Σελίδα 43
... lever of a safety valve is 20 inches in length , and 5 inches between the fixed end and centre of the valve : what weight must there be placed on the end of the lever to equipoise a force or pres- sure of 40 lbs . tending to raise the ...
... lever of a safety valve is 20 inches in length , and 5 inches between the fixed end and centre of the valve : what weight must there be placed on the end of the lever to equipoise a force or pres- sure of 40 lbs . tending to raise the ...
Σελίδα 63
... Lever , the Pulley , the Wheel and Axle , the Inclined Plane , the Wedge , and the Screw . All machines are formed by combinations to a greater or less extent of these six elements . The mechanical effects , how- ever , of the whole ...
... Lever , the Pulley , the Wheel and Axle , the Inclined Plane , the Wedge , and the Screw . All machines are formed by combinations to a greater or less extent of these six elements . The mechanical effects , how- ever , of the whole ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
9 Diff acid angle antimony applied beam bismuth blue body Boil borax Brass breadth cast-iron centre chord circle circumference color Copal copper cosine cube curvature curve cylinder DEGREES Diam diameter Dissolve distance divide draw equal EXAMPLE external secant feet radius foot force gallons given glass glue gold heat horse power inclined plane iron lamp-black length lever linseed oil Logarithm Marble mastic Melt Metal minute Multiply nitric acid number of teeth ounces paper pearlash perpendicular piece of timber pint potash pounds pressure Prussian blue quantity quotient rectified spirit revolutions per minute revolving RULE sal-ammoniac shaft shell-lac side silver solution specific gravity spirit square inch square root steam sulphate surface TABLE tangent tenon thickness tons Varnish velocity versed sine vessel vinegar weight wheel wood yellow zinc
Δημοφιλή αποσπάσματα
Σελίδα 39 - To find the solidity of a spheroid. RULE. Multiply the square of the revolving axis by the fixed axis, and by *5236, and the product will be the solidity.
Σελίδα 33 - Any circle whose diameter is double that of another contains four times the area of the other.
Σελίδα 27 - Of four-sided figures, a square is that which has all its sides equal, and all its angles right angles.
Σελίδα 267 - ... they are dissolved. Then mix the whole with a sufficient heat. Keep the glue in a phial closely stopped, and when it is to be used, set the phial in boiling water.
Σελίδα 266 - ... and, in another vessel, dissolve as much isinglass, previously a little softened in water, (though none of the water must be used), in French brandy or good rum, as will make a...
Σελίδα 235 - SOLDERS. For Lead. — Melt one part of block tin, and, when in a state of fusion, add 2 parts of lead. Resin should be used with this solder. For Tin. — Pewter, 4 parts ; tin, 1 ; bismuth, 1. Melt them together and run them into slips.
Σελίδα 38 - RULE. — To the sum of the areas of the two ends add the square root of their product ; multiply this sum by the perpendicular height, and -^ of the product is the solid content.
Σελίδα 128 - Bring the edges of the pieces of shell to fit each other, observing to give the same inclination of grain to each, then secure them in a piece of paper, and place them between hot irons or pincers ; apply pressure, and let them cool.
Σελίδα 65 - RULE. — Divide the weight to be raised by twice the number of pulleys in the lower block ; the quotient will give the power necessary to raise the weight. EXAMPLE. — What power is required to raise 600 Ibs., when the lower block contains six pulleys ? 600 6 x 2 = 50 Iks., Ans.
Σελίδα 53 - To find the centre of Gyration, multiply the weight of the several particles by the squares of their distances from the centre of motion, and divide the sum of the products by the weight of the whole mass; the square root of the quotient will be the distance of the centre of gyration, from the centre of motion.