. Concrete silos; their advantages. Silos; Concrete construction. Concrete Silos 127 Perfection Concrete Stave Silo. This system is controlled by the Perfection Concrete Stave Silo Com- pany, Des Moines, Iowa, and the outfit with which the staves are made is sold outright to manufacturers. These staves can be used for structures from 10 to 36 feet in diameter and up to 60 feet high. The staves are 28 inches long, 10 inches wide, 2% inches in thickness, and are made in steel forms with a wet mix, waterproofed and made impervious by the addition of 10 per cent of the weight of cement in hydrated
. Concrete silos; their advantages. Silos; Concrete construction. Concrete Silos 127 Perfection Concrete Stave Silo. This system is controlled by the Perfection Concrete Stave Silo Com- pany, Des Moines, Iowa, and the outfit with which the staves are made is sold outright to manufacturers. These staves can be used for structures from 10 to 36 feet in diameter and up to 60 feet high. The staves are 28 inches long, 10 inches wide, 2% inches in thickness, and are made in steel forms with a wet mix, waterproofed and made impervious by the addition of 10 per cent of the weight of cement in hydrated lime. The staves are made concave on the edges and on the ends, and when they are assembled in the silo the space which is thus formed is filled with mortar. The company also manufactures for use on its silos a malleable iron door frame and an all-steel door with steel ladder combina- tion. The door sys- i' tem is continuous | from the foundation _^_ to roof, the frame f occupying a space of j* only 4 inches between doors. Each door opening is 23x25 in. In constructing the ^^^ perfection Silo steel Door in oiln nnp r»f fliA mallp- place; and showing- steel ladder sys- able iron door frames is placed upon a circular concrete foundation, and half staves (that is, 14 inches in length by 10 inches in width by 2% inches in thickness), are placed on the foundation, in the channel on either side of the malleable iron door frame; then a full length stave is. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hanson, Edward Smith, 1871- [from old catalog]. Chicago, The Cement era publishing company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectconcreteconstruction
