Radford's cyclopedia of construction; carpentry, building and architecture. Based on the practical experience of a large staff of experts in actual constrcution work (1909)
Johnson, Alfred Sidney, 1860-, Radford, William A., 1865- · Chicago Radford Architectural Co · leaf 55
Column Forms. Fig. 33. is no remedy whatever if they once get out of positionand any portion of the concrete has been deposited inplace. D D are light wood clamps, made so as to requireno wedges. When the concrete is hard, the clamps D Dare easily knocked off with a hammer, which releases theform.…
Architecture · Building
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.