Practical Carpentry: Being a Complete Up to Date Explanation of Modern Carpentry and an Encyclopedia on the Modern Methods Used in the Erection of Buildings ...

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Industrial Publishing Company, 1907
 

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Page 17 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, etc.
Page 21 - The radius of a circle is a straight line drawn from the center to the circumference, and is equal to one-half the diameter.
Page 15 - A convex or concave line is such that it cannot be cut by a straight line in more than two points ; the concavity of the intercepted portion is turned towards the straight line, and the convexity from it.
Page 21 - A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center.
Page 256 - These plans show the shape and size of all • rooms, halls and closets; the location and size of all doors and windows; the position of all plumbing fixtures, gas lights, registers, pantry work, etc., and all the measurements that are necessary are given. ELEVATIONS A front' riSllt;' left and rear elevation are — i— — — furnished with all the plans.
Page 61 - This rule is easily understood ; the figures on the left of the line represent the " run " or the length of two sides of a right angle, while the figures on the right represent the exact length of the third side of a right-angled triangle, in inches, tenths, and hundredths. Or, to explain it in another way, the equal numbers placed one above the other, may be considered as representing the sides of a square, and the third number to the right the length of the diagonal of that square. Thus the exact...
Page 137 - ... will give the depth in inches. Beams acting as struts should not be cut into or mortised on one side, so as to cause lateral yielding. Purlins should never be framed into the principal rafters, but should be notched. When notched they will carry nearly twice as much as when they are framed.
Page 52 - English," which prevailed in this country from about 1189 until 1307. Fig. 58 is the Equilateral arch, the radius with which the arcs are struck being equal to the span of the arch, and the centres being the imposts ; and thus, the crown and the imposts being united, an equilateral triangle is formed. This form was principally used in the " Decorated" period of Gothic architecture from about 1307 until about 1390, at which time the Ogee arch (Fig.
Page 59 - From q, with radius mq, describe an arc cutting the original arc in o. Make mr equal to m o. From o and r, with radius or, describe arcs intersecting each other in i: produce these until they meet the curve p in n.
Page 26 - Let us divide it into 7 equal parts. Draw the line AJ at least 4 inches long, forming any convenient angle with A C.

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