. Concrete silos; their advantages. Silos; Concrete construction. Concrete Silos 85 ing, so that when it is desired to release them a jerk with the hook from above is all that is necessary. Each section is joined to the one above it by a hook at- tached to the upper edge of the lower sec- tion, which hooks over a raised rivet on the lower edge of the section above. This hook is pivoted and has a hole in the shank, so that a work- man above, after rais- ing the side clamps with a long hook, which is a part of the outfit, can insert the point of the hook in the shank of the hook on the lower for
. Concrete silos; their advantages. Silos; Concrete construction. Concrete Silos 85 ing, so that when it is desired to release them a jerk with the hook from above is all that is necessary. Each section is joined to the one above it by a hook at- tached to the upper edge of the lower sec- tion, which hooks over a raised rivet on the lower edge of the section above. This hook is pivoted and has a hole in the shank, so that a work- man above, after rais- ing the side clamps with a long hook, which is a part of the outfit, can insert the point of the hook in the shank of the hook on the lower form, with one operation disengaging the form from the one above it and drawing it up into its new position. There is in this sys- tem a center mast of steel tubing, carrying collars which can be. ss? * Rei chert Silo With Square Chute. 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
