A Manual of Machine Drawing and DesignLongmans, 1898 - 375 páginas |
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Página 20
... formula t = 3 · 1416 where t is the √ time in seconds , 7 the length of the pendulum in feet , and g the acceler- ating effect of gravity ( generally taken at 32-2 feet per second ) . If the simple pendulum be made to rotate so that ...
... formula t = 3 · 1416 where t is the √ time in seconds , 7 the length of the pendulum in feet , and g the acceler- ating effect of gravity ( generally taken at 32-2 feet per second ) . If the simple pendulum be made to rotate so that ...
Página 27
... formula S = W EA If the strain S is caused by change of temperature , the force W , which will bring the bar back to its original length , is given by the formula W = EAS , and this is the force which must be applied to prevent the ...
... formula S = W EA If the strain S is caused by change of temperature , the force W , which will bring the bar back to its original length , is given by the formula W = EAS , and this is the force which must be applied to prevent the ...
Página 30
... formula as its resistance to tension , namely , W = Aƒ , the stress ƒ being , of course , compressive stress in this case . The ultimate compressive strength of materials is generally much more difficult to determine than their tensile ...
... formula as its resistance to tension , namely , W = Aƒ , the stress ƒ being , of course , compressive stress in this case . The ultimate compressive strength of materials is generally much more difficult to determine than their tensile ...
Página 46
... formula : - where Di and N = = D1 = D 1.28065 N diameter at bottom of thread , D = diameter over the thread , number of threads per inch . It is obvious that if P = pitch , P and also , N = 1 . = 1 N ' P The following table of ...
... formula : - where Di and N = = D1 = D 1.28065 N diameter at bottom of thread , D = diameter over the thread , number of threads per inch . It is obvious that if P = pitch , P and also , N = 1 . = 1 N ' P The following table of ...
Página 47
... formula : - D1 = D : - 1.29904 N where D1 = diameter at bottom of thread , D and N = number of threads per inch . = diameter over the thread , The relation between the pitch P and the diameter D of the Sellers screw thread is given very ...
... formula : - D1 = D : - 1.29904 N where D1 = diameter at bottom of thread , D and N = number of threads per inch . = diameter over the thread , The relation between the pitch P and the diameter D of the Sellers screw thread is given very ...
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Términos y frases comunes
arms axis bearing belt bending bending moment boiler bolt brass butt joint cast-iron centre condenser connecting-rod copper cotter crank crank-pin cross-head Crown 8vo curve cylinder D₁ D₂ Diagrams Diam dimensions drawing eccentric equal example feet fire-box flange force formula friction furnace gearing groove hole horse-power Illustrations inches in diameter iron joint lap joints length load locomotive mean effective pressure metal packing piece pipe piston piston-rod pitch circle pounds per square practice pressure proportions published by Longmans pulley Pump radius resistance revolutions per minute ring rivets rope Scientific Works published screw thread screwed shaft shearing shell shown in Fig side speed Split pin square inch stays steam steel strap strength stress stroke Studs stuffing-box surface T₁ T₂ taper teeth tenacity tension thickness thread tons per square velocity weight wheel width Woodcuts wrought-iron
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