ords. the powder, provided with a slender tube, B, at the top, ner described. It will be seen that this mode of adjust- This machine performs the whole labor of grinding the and a round, air-tight india-rubber ball,C, at the bottom. ing the length of clay and screening The ball communicates with… … tiles per hour. most ornamentaj prevent the powder from passing into the ball. A me- The machine is and elegant part MACHINE FOR MAKING DRAIN TILES. tallic plate, D, is attached to the bottom of the ball, and, of the harness. made of iron, and by pressing this plate suddenly, the air is forced…
