Practical mechanical drawing and machine design self taught .. (1907)
Westinghouse, Charles. [from old catalog] · Chicago, F. J. Drake & co. · leaf 28
kness. Theboundaries of a solid are surfaces. A solid angle is that which is made by two ormore plane angles, which are not in the sameplane, meeting at one point. A cube is a solid figure contained by sis equalsquares—^Fig. 50. A prism is a solid figure contained by plane figures of which two that… … Fig. 50—Cube. Fig. 51—Frism. triangles, whose vertices meet a point about thebase, called the vertex or apex of the pyramid—Fig. 52. , -
Mechanical drawing · Machine design
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