Mechanics and Engineers Book of Reference and Engineers Field BookStringer & Townsend, 1856 - 517 σελίδες |
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Σελίδα xii
... Ton for each , Ultimate Breaking Weight in Tons of Cast - Iron Pillars , Table of Strengths of Cast - Iron Shafts , WROUGHT IRON ; 97 118 • 119 123 Strength of the Teeth of Cast - Iron Wheels , 127 Method of Ascertaining the Weight of ...
... Ton for each , Ultimate Breaking Weight in Tons of Cast - Iron Pillars , Table of Strengths of Cast - Iron Shafts , WROUGHT IRON ; 97 118 • 119 123 Strength of the Teeth of Cast - Iron Wheels , 127 Method of Ascertaining the Weight of ...
Σελίδα 41
... • 3854 lead . tin . mercury . Avoirdupois lbs . , 66 * 009 = cwts . ⚫00045 tons . INSTRUMENTAL ARITHMETIC ; OR , UTILITY OF THE SLIDE RULE 4 * MENSURATION . 41 DECIMAL APPROXIMATIONS, for facilitating Calculations in Men- suration,
... • 3854 lead . tin . mercury . Avoirdupois lbs . , 66 * 009 = cwts . ⚫00045 tons . INSTRUMENTAL ARITHMETIC ; OR , UTILITY OF THE SLIDE RULE 4 * MENSURATION . 41 DECIMAL APPROXIMATIONS, for facilitating Calculations in Men- suration,
Σελίδα 43
... ton ? 1 ton 20 cwt . Set 3 upon B to 31'5 upon A , and against 20 upon B is 210 upon A. Rule of Three Inverse . Rule . Invert the slide , and the operation is the same as direct proportion . 1. I know that six men are capable of ...
... ton ? 1 ton 20 cwt . Set 3 upon B to 31'5 upon A , and against 20 upon B is 210 upon A. Rule of Three Inverse . Rule . Invert the slide , and the operation is the same as direct proportion . 1. I know that six men are capable of ...
Σελίδα 47
... ton will fall to the ground no faster than a body one pound . The velocity of a body is the number of feet passed over in one second . Put v = the velocity of a falling body , at the end of t seconds , ..v32 · 19 × t . The quantity 32 ...
... ton will fall to the ground no faster than a body one pound . The velocity of a body is the number of feet passed over in one second . Put v = the velocity of a falling body , at the end of t seconds , ..v32 · 19 × t . The quantity 32 ...
Σελίδα 50
... tons , then Fwill be in tons also . If w be the angular velocity , W r w2 ..F = g If T be the time of the weight making a complete revolution , A 2 π . * . 10 = angular velocity Τ V f B If there be several bodies at B , C , D , and re ...
... tons , then Fwill be in tons also . If w be the angular velocity , W r w2 ..F = g If T be the time of the weight making a complete revolution , A 2 π . * . 10 = angular velocity Τ V f B If there be several bodies at B , C , D , and re ...
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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.