Practical Essay on the Strength of Cast Iron and Other Metals: Containing Practical Rules, Tables, and Examples, Founded on a Series of Experiments; with an Extensive Table of the Properties of Materials, Parte1J. Weale, 1842 - 504 páginas |
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20 feet applied axis of motion bar 1 foot beam is supported bear calculated cast iron centre of motion cohesive force column Compared with cast compressed cube root cubic foot cubic parabola deflexion Depth Depth Depth depth in inches diameter distance Ditto effect elastic force equal strength Equation Essay Example experiments extension in length feet per second fixed flexure foot long force acts fracture girder greatest strain inch square inch without permanent iron as unity length in feet load malleable iron middle modulus of elasticity modulus of resilience multiplied nearly neutral axis parabola pillar Plate pressure quotient RENNIE resistance shaft side solid cylinder Specific gravity specific resilience specimens square inch steam engine stiffness straining force strength of cast Table tons torsion TREDGOLD uniform uniformly distributed velocity Weight Defl weight of modulus wheel wrought iron
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Página iii - Carpentry," &c. Fifth Edition, Edited by EATON HODGKINSON, FRS ; to which are added EXPERIMENTAL RESEARCHES on the STRENGTH and OTHER PROPERTIES of CAST IRON. By the EDITOR.
Página ii - THE ELEMENTARY PRINCIPLES OF CARPENTRY : a Treatise on the Pressure and Equilibrium of Timber Framing, the Resistance of Timber, and the Construction of Floors, Arches, Bridges, Roofs, Uniting Iron and Stone with Timber, &c. To which is added an Essay on the Nature and Properties of Timber...
Página 7 - ... usefully employed where hardness is necessary, and where its brittleness is not a defect ; but it should not be chosen for purposes where strength is necessary. When it is cast smooth, it makes excellent bearings for gudgeons or pivots to run upon, and is very durable, having very little friction.
Página ii - To which is added, an Essay on the Nature and Properties of Timber, including the Methods of Seasoning, and the Causes and Prevention of Decay...
Página 173 - That is, divide 240 times the number of horses* power by the number of revolutions per minute, and the cube root of the quotient will be the diameter of the shaft in inches.
Página 281 - IRON expands ^^^ of its length for one degree of heat ; will bear on a square inch, without permanent alteration, 17,800 Ibs., and an extension in length of j^st...
Página 8 - ... the shrinkage is different, which causes an unequal tension among the parts of the metal, impairs its strength, and renders it liable to sudden and unexpected failures. When the texture is not uniform, the surface of the casting is usually uneven where it ought to have been even. This unevenness, or the irregular swells and hollows on the surface of a casting, is caused by the unequal shrinkage of the iron of different qualities.
Página iii - Practical essay on the strength of cast iron and other metals; containing practical rules, tables, and examples, founded on a series of experiments; with an extensive table of the properties of materials. By Thomas Tredgold.
Página 156 - ... part of the depth. NOTE. — It may be remarked here, that the rules are the same for inclined as for horizontal beams, when the horizontal distance between the supports is taken for the length of bearing.
Página 231 - ... length of a bar or shaft being given, the power, and the leverage the power acts with, being known, and also the number of degrees of torsion that will not affect the action of the machine, to determine the diameter in cast iron with a given angle of flexure. RULE. — Multiply the power in Ibs. by the length of the shaft in feet, and by the leverage in feet ; divide the product by fifty-five times the number of degrees in the angle of torsion, and the fourth root of the quotient equal the shaft's...