Cement and how to use it : a working manual of up-to-date practice in the manufacture and testing of cement : the proportioning, mixing, and depositing of concrete, and its application to all forms of concrete construction, plain and reinforced : with special chapters on concreting tools and machinery, waterproofing, working rules, etc. (1910)
Radford, William A., 1865- · Chicago : Radford Architectural Co. · leaf 172
CEMENT AND HOW TO USE IT 153 facing can be placed directly in the bottom of the mould, and the coarser body mixture be placed above it. … Fig. 13. Concrete Block Machine— Pace-Down Type. Cement Brick and Drain-Tile Machines. Many of the companies manufacturing concrete block machines have also developed special ma- chines for the making of cement brick, drain- tile, Y-sewer pipe, T-sewer pipe, and drain-tile connections; also for…
Cement · Concrete construction
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.