336 



STEEL GRAIN ELEVATORS. 



CHAP. IX. 



__t_ 



Punch Holes in Pli, 

 to fit 'Holes in Trusses. 



j^^ 



^^S^-S^* . 'JT - 



Section "DO' 



if -"Da^i. <; 26 I ^'M' 4 Oeiail of flan Ho/e Door, 



View -DP Showing <5f>ouf. 



FIG. 12. DETAILS OF STEEL ROOF FOR STEEL BINS FOR INDEPENDENT ELEVATOR. 



