Triangulation Applied to Sheet Metal Pattern Cutting: A Comprehensive Treatise for Cutters, Draftsmen, Foremen and Students; Progressing from the Simplest Phases of the Subject to the Most Complex Problems Employed in the Development of Sheet Metal Patterns; with Practical Solutions of Numerous Problems of Frequent Occurrence in Sheet Metal Shops

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Sheet metal publication Company, 1917 - Sheet-metal work - 268 pages
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Page 256 - EF. 11. The expression, straight line, is used to denote both an unlimited straight line and a part of such line. A line of definite length, also called a segment, or line-segment, is represented by a *' : iB line whose ends are marked ; as AB.
Page 255 - A plane curve, such that the sum of the distances from any point of the curve to two fixed points is a constant.
Page 258 - The court said that a radius is a straight line from the center of a circle or sphere to its periphery or surface, and a periphery is the circumference of a circle, and that the word "within...
Page 232 - If a cone be cut by a plane which passes through its two slant sides in an 'oblique direction the section will be an •ellipsis.
Page 256 - The branch of pure mathematics that treats of space and its relation; the science of the mutual relations of points, lines, angles, surfaces, and solids, considered as having no properties but those arising from extension and difference of situation.
Page 172 - In all cases where what may be looked upon as one solid of revolution, such as a cylinder, cone or sphere, is joined...
Page 253 - A plane figure bounded by a curved line called the circumference, everywhere equally distant from a point within called the center; also, the circumference.
Page 254 - ... planes, the circle forming the rest of the boundary; called right when the line is at right angles to the planes, oblique when it is not; in the higher geometry, any curved surface generated by the motion of a straight line remaining parallel to itself and constantly intersecting a curve.
Page 254 - CYLINDER. — A solid whose curved bounding surface is generated by the motion of a straight line, remaining parallel to itself, around two equal circles in parallel planes, the circle forming the rest of the boundary; called right when the line is at right angles to the planes, oblique when it is not; in the higher geometry, any curved surface generated by the motion of a straight line remaining parallel to itself and constantly...

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