Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 50
,Jl£=*=^ Fig. 10. Rotary Mixer Mouuied ou Frame. J … Fig. 11. Cross Section of Drum (front half cuut..a.. >, Showing Blades and Liniujj 38 REIXFORCED CONCRETE 29 concrete falls through a trap door in the bottom of the machine. Inthe continuous type the materials should be put in at the upper end
Architecture · Building · Carpentry
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
