Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 67
eir thickness. Experience has shown thatiron beams are best made in the form of adouble T., Fig. 64, with the height about twiceFig. 64. the thickness at the broadest part. 201. Second. Principles of Frames. The combinationsof materials into buildings and machines are all applica-tions of a few… … 58 MECHANICS OFSOLIDS.
Physics
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