Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . ry circles are upon the circumferenceof the main circle, and they are also of equal radius with it, but here only half of each secondarycircle appears. Fig. 2639 is a circle of which A is the centre, and the line B E C D is called itscircumference or boundary line. D E and B C are diameters (the word signifies cross measure, ormeasure across), and all lines passing through the centre of any circle, and meeting the circumferenceon opposite sides of it, are all alike diameters. Half a di
Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . ry circles are upon the circumferenceof the main circle, and they are also of equal radius with it, but here only half of each secondarycircle appears. Fig. 2639 is a circle of which A is the centre, and the line B E C D is called itscircumference or boundary line. D E and B C are diameters (the word signifies cross measure, ormeasure across), and all lines passing through the centre of any circle, and meeting the circumferenceon opposite sides of it, are all alike diameters. Half a diameter, as A B or C A in Fig. 2640, is aradius. The word radius, of which radii is the plural, signifies a spoke of a wheel. It is evidentthat as each radius begins at the centre and is bounded at the opposite end by the circumference, allthe radii in any circle are equal, as are all the diameters. Fig. 2645 is a front view, Fig. 2646 a side view, Fig. 2647 a top view, and Fig. 2648 a part section,showing the channel for an eccentric chuck. The part M to receive the mandrel, and the base-plate 2645. 2647.
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Keywords: ., bookauthorbenjaminpark18491922, bookcentury1800, bookdecade1880
