 | American School (Chicago, Ill.) - Engineering - 1903 - 380 pages
...inches in width. These are hemmed on both edges and a stout wire is run through the upper hem which is fastened to the netting by means of small copper...rule for dwelling houses and similar work is to allow 1J square inches of area for each square foot of radiating surface. The inlet windows should be provided... | |
 | American School (Chicago, Ill.) - Engineering - 1906 - 588 pages
...inches in width. These are hemmed on both edges and a stout wire is run through the upper hem which is fastened to the netting by means of small copper...rule for dwelling houses and similar work is to allow 1* square inches of area for each square foot of radiating surface. The inlet windows should be provided... | |
 | American School of Correspondence, Chicago, Charles Lincoln Hubbard - Heating - 1908 - 252 pages
...inches in width. These are hemmed on both edges and a stout wire is run through the upper hem which is fastened to the netting by means of small copper...should be about three-fourths the total area of the warm-air ducts leading from it. If the duct is of any considerable length or contains sharp bends,... | |
 | Louis Derr - Electric engineering - 1909 - 460 pages
...inches in width. These are hemmed on both edges and a stout wire is run through the upper hem which is fastened to the netting by means of small copper...should be about three-fourths the total area of the warm-air ducts leading from ic. If the duct is of any considerable length or contains sharp bends,... | |
 | 1909 - 444 pages
...inches in width. These are hemmed on both edges and a stout wire is run through the upper hem which is fastened to the netting by means of small copper...should be about three-fourths the total area of the warm-air ducts leading from it. If the duct is of any considerable length or contains sharp bends,... | |
 | Architecture - 1909 - 500 pages
...inches in width. These are hemmed on both edges and a stout wire is run through the upper hem which is fastened to the netting by means of small copper...should be about three-fourths the total area of the warm-air ducts leading from it. If the duct is of any considerable length or contains sharp bends,... | |
 | American School of Correspondence, Chicago, Charles Lincoln Hubbard - Heating - 1909 - 248 pages
...inches in width. These arc hemmed on both edges and a stout wire is run through the upper hem which is fastened to the netting by means of small copper...there is any tendency for the current to reverse. 83 If the duct is of any considerable length or contains sharp bends, it should be made the full size... | |
 | Architecture - 1916 - 652 pages
...inches in width. These are hemmed on both edges and a stout wire is run through the upper hem which is fastened to the netting by means of small copper...area of the cold-air duct for any heater should be alxnit three-fourths the total area of the warm-air ducts leading from it. If the duct is of any considerable... | |
 | Heating - 1918 - 386 pages
...inches in width. These are hemmed on both edges and a stout wire is run through the upper hem which is fastened to the netting by means of small copper...should be about three-fourths the total area of the warm-air ducts leading from it. If the duct is of any considerable length or contains sharp bends,... | |
 | Building - 1919 - 490 pages
...inches in width. These are hemmed on both edges and a stout wire is run through the upper hem which is fastened to the netting by means of small copper...should be about three-fourths the total area of the warm-air ducts leading from it. If the duct is of any considerable length or contains sharp bends,... | |
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J-inch mesh; to this are fastened flaps or checks of gossamer cloth about 6 inches in width. These are hemmed on both edges and a stout wire is run through the upper hem which is fastened to the netting by means of small copper or soft iron wire. The... 