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Appleton's cyclopaedia of drawing : designed as a text-book for the mechanic, architect, engineer, and surveyor : comprising geometrical projection, mechanical, architectural, and topographical drawing, perspective and isometry (1869)

Worthen, W. E. (William Ezra), 1819-1897 · New York : D. Appleton and Company · leaf 70

An illustration from Appleton's cyclopaedia of drawing : designed as a text-book for the mechanic, architect, engineer, and surveyor : comprising geometrical projection, mechanical, architectural, and topographical drawing, perspective and isometry, 1869, leaf 70
D. Prob. XIY. — Through two given points, as B and C (fig. 98), to describe an arc of a circle with a given radius. Prom B and C, with an opening of the dividers equal to the given radius, describe two arcs crossing at A ; from A, as a centre, with the same radius describe an arc which will be the… … Prob. XY. — To find the centre of a given circle , or of an arc of a circle. Of a circle (fig. 99). — Draw the chord A B, bisect it by the perpendic- ular C D, whose extremities lie in the circumference, and bisect C D for the centre G- of the circle. Of an arc, or of a circumference (fig. 100). —…

Mechanical drawing · Architectural drawing · Perspective · Projection

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