flow of sand, and what valve which extends the entire length of the reservoir chamber, as shown by the arrows, is regulated by a renders it still more curious is that the epoch of its and projects from its open end, fitting closely in the ring with slotted holes working over similar holes in… … fice with fine sand. This done, let us allow the sand BUSSELL'S GBAIN SCOITBEB AND SEFABATOB. to fall by drawing out a small strip of metal which TAYLOR & EDWARDS' LUBRICATOR. closes the aperture at the bottom of the hopper, F (Fig. 3). The sand flows in a continuous stream and causes drip tubes,…
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