Notes on building construction [by P.G.L. Smith].


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Seite 286 - ... there is no word more ambiguous in its meaning than Possession. It is interchangeably used to describe actual possession and constructive possession which often so shade into one another that it is difficult to say where one ends and the other begins.
Seite iii - COURSE OF BUILDING CONSTRUCTION. Notes on Building Construction. Arranged to meet the requirements of the Syllabus of the Science and Art Department of the Committee of Council on Education, South Kensington.
Seite 31 - When phosphorus is perfectly pure it is semitransparent, and has the consistence of wax : it is so soft that it may be cut with a knife. Its specific gravity is from 1.77 to 2.03.
Seite 162 - The whole of the cement shall be Portland cement of the very best quality, ground extremely fine, weighing not less than 112 Ibs. to the striked bushel, and capable of maintaining a breaking weight of 350 Ibs. per square inch seven days after being made in a mould, and immersed in water during the interval of seven days.
Seite 3 - ... the durability of stone, High winds blow sharp particles against the face of the stone and thus grind it away. Moreover, it forces the rain into the pores of the stone, and may thus cause a considerable depth to be subject to the effects of acids and frost. In winter water penetrates porous stones, freezes, expands, and disintegrates the surface, leaving a fresh surface to be similarly acted upon. STRENGTH is generally an indispensable attribute, especially under compression and cross-strain....
Seite 308 - The higher steel is heated (without, of course, running the risk of being burned) the greater is the increase of strength, by being plunged into oil.
Seite 245 - ... easily forgeable, and very tenacious, but not fusible except at temperatures rarely attainable in furnaces, and not susceptible of tempering like steel. When present in certain proportions, the limits of which cannot be exactly prescribed, we have the various kinds of steel, which are highly elastic, malleable, ductile, forgeable, weldable, and capable of receiving very different degrees of hardness by tempering, even so as to cut wrought iron with facility, and fusible in furnaces.
Seite 376 - ... the basement stories of houses, particularly in kitchens, or other rooms where there are constant fires ^ and, in general, in every place where wood is exposed to warmth and damp air, the dry rot will soon make its appearance. 335. All kinds of stoves are sure to increase the disease if moisture be present.
Seite 308 - Steel plates, hardened in oil and joined together with rivets, are fully equal in strength to an unjointed soft plate, or the loss of strength by riveting is more than counterbalanced by the increase in strength by hardening in oil.
Seite 262 - 4. The contraction of area at fracture, previously overlooked, forms an essential element in estimating the quality of specimens. " 5. The respective merits of various specimens can be correctly ascertained by comparing the breaking strain jointly with the contraction of area.

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