Illinois Society of Architects · Chicago · leaf 245
r knuckles, of sucli thickness that theythey are not likely to break in service. Bushings % inch to ^ incli thick arebetter th.an none, but these do not last aslong as the heavier bushings which haveIjeen produced by several manufacturers, be-ing V2 inch to % inch thick and so arrangedthat they may…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
