ad and with coarse screw thread, as shown in our engraving. The plug is applied as A wheel for perforating paper, as checks, drafts, ete., The accompanying illustration represents a glazed to be separated from duplicates or stubs, is shown usual, an oakum packing being first put in, then the… … CAMPBELL’S SKYLIGHT. separate perforating machine. The accompanying illustration represents a ditching a a a and excavating machine designed to dig from two to and nuts or similar fastenings. This is a patented in- AN IMPROVED THILL COUPLING. four hundred rods of ditch 3 feet in depth, 14 inches…
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