Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 75
s tending to keep the columns comparatively cool. Insetting boilers in this way, the columns and I-beams areset in position first. The boiler is then hoisted to the properheight by means of tackle, which is attached to the I-beams,and when the boiler is brought to the proper height, theU-bolts are*… … Fig. 27 The expansion is easily taken care of by the U-bolts andhangers, and if the walls are properly set, they will show Setting Return Tubular Boilers 63 no cracks as they carry no weighty and are free to go andcome. The accompanying table^ No. 1^ has been carefullyworked out with a factor of…