Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 426
oading and placing in condition for workaverages about $65 to $75 per mixer. Gravity Mixers. The most common form of gravity mixersconsists of two or four small hoppers (depending upon the sizeof the mixer) set upon a frame support, which latter also carriesa platform on which the men are stationed… … Fig. 179. Showing an Arrangement of the Hains Concrete Mixer, and material allowed to pass into the hopper below, where it iscaught and held until this hopper is full, upon which the gatesare opened and the material allowed to flow into the nextlower hopper and so on until the concrete is received…
Contractors' operations · Building
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
