intended for refitting valves ground be the weight of the machine, and, as it revolves, isa small lathe, having a bed plate with guide rails, upon hotels or warehouses, by means of water, designed to utilize dig up the earth. The rearward cylinder is armed with which the heads slide, in their… … such valves, and allow their bear- ted at the back end of the cyl- ing faces to meet the cutters. inder, through a pipe, which is The centers, resting on a coiled closed by a suitable valve. spring in the hollow spindle, retreat as the valve is fed up and knock out and pulverize the earth presented…
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