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 218
ssary, be careful toselect a mixer which does not easily get out of gear. If the contractor is to use a machine which is notknown to you, or if you are not satisfied with the con-crete which it is turning out, I would suggest the fol-lowing test. I have found it a very valuable one on mywork. In… … --Z Z:
Architecture · Building
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.