engraving represents a gang er at both the upper and lower sides by metallic links, tinue their work, and allows the latch, f, to again and ditch plow invented by J. F. and W. L. Black of bb, having hinged joints at their ends. The linkson hold it firmly. the upper sides of the beams are raised by… … in the bar, d, may be as releases the lever from BLACK’S GANG PLOW. the catch, and throws its near together as necessary in order to allow the adjusting of the position for ing blocks, as shown. A forked lever, c, is connected upper end forward, thus bending the brace, a, at its this purpose with…
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