36 



STEEL ROOF TRUSSES AND MILL BUILDINGS. 



CHAP. I. 



DIMENSIONS FOR GLAZED WOOD SASH 



QUALITY OF GLASS 



All sash to be I j' thick, except Sliding Sash, Pivoted Sash, dnd Single Sash (or one 

 half oF Double Sash) exceeding 4'6"high or 4'0"wide, which should be made fjr" thick- 



TopRai/s ?/' Stiles ?" Bottom Rail 5"- Muntins %" 



Pivoted Sash, 4 lights high or over, co have one Horizontal Muntin I? thick ; al/ 

 other Sash, 6 lights high or over, to have one Horizontal Muntin I ^" thick' 



Pivoted Sash, 4 lights wide or over, to have one Vertical Muntin Ij "thick- all 

 other Sash, 6 lights wide or over t bo have one Vertical Muntin /j> "thick 



for Pivoted Sash 4 and 5 lights high or wide, add Ig" to Figures given in above tables- 



FIG. 27. DIMENSIONS AND DATA FOR GLAZED WOOD SASH. 

 AMERICAN BRIDGE COMPANY. 



