Illinois Society of Architects · Chicago · leaf 445
Iron StairsBalcony RailsStore FrontsGrilles Window GuardsMarquises Steel Fire DoorsMeeker Elevator DoorsTinclad DoorsHorizontal FoldingCompound Slide-UpElevator Doors O. H. HILL CO. 2253-2259 St. Paul Ave.CHICAGO, ILL. Largest Brake in Existence STEEL PLATES BENT UP TO Y THICKAND ib-o LONG 44 … 5000 E 2000 1000 leooor P is allowable stress per sq. in./ is unsupported length in inchesr is corresponding least radius of gyration-ins.Max //for primary members=120// secondary =200 k) 10 20 30 40 50 60 70 80 90 16o 120 140 i6o 1^0 I 26p PRIMARV1/t_ IP.…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
