48 



STEEL ROOF TRUSSES AND MILL BUILDINGS. 



CHAP. I. 



for 8 foot Track- Packed with screws 

 for Hanger. Track comes in 4, 0, 8, and 

 10 foot lengths. Furnish 2 Center 

 Brackets For 10 foot Track. 



FIG. 39. DETAILS OF A TRACK FOR A SLIDING DOOR. 



CCMM 



finished floor Level -s-*f> /'? ; J Portland Cement Concrete 





FIG. 40. MODIFIED SAW TOOTH ROOF, PAINT SHOP, PUBLIC SERVICE CORPORATION. 



