Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 373
fxferior Wall … 7nc/2 Head Fig. 146. Concrete Plant for Ten-Story Building. rested at the bottom of the elevator shaft. At the elevation where itwas desirable to dump the concrete, the front slide was taken out,and the concrete was dumped automatically by the bucket tippingforward. The bucket rights itself as soon…
Architecture · Building
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
