Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 76
^ carry no weighty and are free to go andcome. The accompanying table^ No. 1, has been carefullyworked out with a factor of safety of 5^ and gives the dif-ferent sizes and lengths of I-beams and columns required … Fig. 28 for boilers of 36 inches in diameter and 8 feet long, toboilers of 90 inches in diameter and 20 feet in length, giv-ing the total weight to be supported and the sizes, weights,land positions of the columns, and I-beams required: 64 Steam Engineering Table 1 sizes and weights of columns and…
