Illinois Society of Architects · Chicago · leaf 506
owed 1 or 2 l 70 2 :; t,, 1 ., SO .-, 6 to 111 1 ... too 10 1 1 to 211 2 150 20 2 1 10 35 2% 175 :;:, 36 to 1;:. 3 2 2T, 65 i;t; to i3(i 4 325 130 NOTK: See Rule No. 29 for determinationof number of Units and Rules Nos. 69 and 711 for riser sizes. 501 RADYNE the most efficient Gas Burners… … FEED DOOR CONVERSION TYPEINPUT 200,000 B.T.U. HOW HEAT IS PRODUCED An electrically driven blower forces a mixture of air and gas into small refractory cellscreating a rotating motion. The centrifugal force of this whirling mixture causes the gasto burn on the sides of the cells, which become…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-538-299.webp)
