Practical Masonry, Or, A Theoretical and Operative Treatise of Building: Containing a Scientific Account of Stones, Clays, Bricks, Mortars, Cements, Fireplaces, Furnaces, &c. : a Description of Their Component Parts, with the Manner of Preparing and Using Them; and the Fundamental Rules in Geometry, on Masonry and Stone-cutting, with Their Application to Practice : Illus. with Forty-four Copperplate Engravings

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B.B. Mussey, 1846 - Masonry - 192 pages

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Page 84 - To make a triangle of which the sides shall be equal to three given straight lines, but any two whatever of these must be greater than the third (20.
Page 57 - ... weight for weight, unless such gross powder be specifically as heavy as sand Sand may be cleansed from every softer, lighter, and less durable, matter, and from that part of the sand which is too fine, by various methods preferable in certain circumstances, to that which has been already described. Water may be found naturally free from fixable gas, selenite, or clay ; such water may, without any great inconvenience, be used in the place of the lime-water ; and water approaching this state will...
Page 82 - PROBLEM. To draw a straight line at right angles to a given straight line, from a given point in the same.
Page 190 - Radius, in geometry, is the semi-diameter of a circle, or a right line drawn from the centre to the circumference ; in mechanics, the spoke of a wheel.
Page 186 - In geometry is either length, breadth, or thickness. Diminution. A term expressing the gradual decrease of thickness in the upper part of a column. Dipteral. A term used by the ancients to express a temple with a double range of columns in each of its flanks.
Page 57 - Q qa wellwell-dried or burned animal fubftance may be ufed, inftead of bone-afh; and feveral earthy powders, efpecially the micaceous, and the metallic, and the elixated afhes of divers vegetables, whofe earth will not burn to lime, and the...
Page 24 - ... or even siliceous. When siliceous, the mineral often much resembles quartz. The texture of some sandstones is very close, while that of others is so loose and porous as to admit the passage of water. Sometimes, indeed, this rock is vesicular. Some varieties are so solid as to give fire with steel, while others are friable, and may be reduced to powder even by the fingers. Its fracture is always granular or earthy, although it may be at the same time conchoidal or splintery.
Page 54 - ... sand, which thus subsides in the receptacle, be washed in clean streaming water through a finer sieve, so as to be further cleansed, and sorted into two parcels ; a coarser, which will remain in the sieve, which is to give passage to such grains of sand only as are less than one-thirtieth of an inch in diameter, and which is to be saved apart under the name of coarse sand ; and a finer, which will pass through the sieve and subside in the water, and which is to be saved apart under the name of...
Page 11 - A pencil dipped in the tinctures, will make the finest traces on the marble while cold, which, on the heating of it afterwards, either on sand, or in a baker's oven, will all sink very deep, and remain perfectly distinct in the stone. It is very easy to make the ground colour of the marble red or yellow by this means, and leave white veins in it. This is to be done by covering...
Page 55 - This may be called coarse-grained water cement, which is to be applied in building, pointing, plastering, stuccoing, or other work, as mortar and stucco generally are ; with this difference chiefly, that, as this cement is shorter than mortar, or common stucco, and dries sooner, it ought to be worked expeditiously in all cases ; and, in stuccoing, it ought to be laid on by sliding the trowel upwards on it. The materials used along with this cement in building, or the ground on which it is to be laid...

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