Miracle concrete: the great modern industry (1909)
Miracle Pressed Stone Co. · Miracle Pressed Stone Co. · leaf 112
A QualityMachineBuilt toLast aLifetime. … Illustration No. 8—Releasing.The foot lever is first used for releasing then throw in a little excess material and pound down withthe wooden mallet as shown (illustration No. 6). Whenthoroughly tamped, remove the hopper, shoving most of surplusmaterial off with the bottom edge as it is slid back…
![An illustration from The daily newspaper : the history of its production and distribution / [G.H.F.]. (1878)](https://img.insideoutlibrary.com/img/200/ia-dailynewspaperhi00ghf-17-9.webp)
