The Universal Sheet Metal Pattern Cutter: A Comprehensive Treatise on All Branches of Sheet Metal Pattern Development, Volume 1

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Sheet metal publication Company, 1924 - Sheet-metal work
 

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Page 19 - 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. The curve which bounds the circle is called the circumference Any portion of the circumference is called an arc.
Page 22 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center. The radius of a sphere is a straight line drawn from the center to the surface.
Page 35 - Change 3 10' 30" to circular measure. Ans. 0.0554 radian, nearly 4. Change 15 24' to circular measure. Ans. 0.2688 radian, nearly THE SPHERE DEF1N1T1ONS 11. In geometry, a sphere is defined as a solid bounded by a surface every point of which is equidistant from a point within, called the center. The...
Page 22 - A SPHEROID is a solid, generated by the revolution of an ellipse about one of its diameters. If the ellipse revolves about its longer or...
Page 21 - A cylinder is conccived to be generated by the revolution of a rectangle about one of its sides as an axis.
Page 371 - ... the length of each side be, to have an area similar to a ? In Fig. 11 is shown the illustration of an ordinary steel square, and the method is given of obtaining accurate diameters of...
Page 34 - A pyramid (Fig. 54) is a solid whose base is a polygon and whose sides are triangles uniting at a common point, called the vertex.
Page 21 - A cone is a solid figure described by the revolution of a right angled triangle about one of the sides containing the right angle, which side remains fixed.
Page 161 - Now with radius eqiial to l'-2' in plan, and 1' in G as center, describe the arc 2'. Then using 1 in G as center, and l-2' in C as radius, intersect the arc 2' in G. Now with radius equal to 1-2* in the true section, and 1 in G as center, describe the arc 2, which intersect by an arc struck from 2' as center and with 2-2
Page 28 - O as center, and OA or OB as radius, draw an arc cutting the line in M. Or, (c) use a straight edge and triangle. < Л

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