MISCELLANEOUS STRUCTURES. 



were calculated on a basis of 16,000 Ibs. per sq. in. for tension and 

 14,000 Ibs. per sq. in. for compression. Provision for expansion and 

 contraction is made at intervals of 100 ft. The structural work for this 

 shop was built at the Toledo Works of the American Bridge Co. The 

 steel is painted a light grey, and the brick is whitewashed, a pneumatic 

 machine being used for the latter work. 



K'l 



Half Side Eleva-tion. 



- SS'O'C.toC.of Trusses E NEWS. 



Half Transverse Section. 



FIG. 175. 



The arrangements for lighting the shop by day have already been 

 referred to. For night work there will be arc lights for general light- 

 ing and incandescent lamps convenient to the tools, etc. The building 

 is heated by the Sturtevant hot blast system. On each side are two 

 fan rooms, each containing a steam-driven blower fan and a heating 



