will be growing lazy ? the teeth back to a vertical position, ready to con- er at both the upper and lower sides by metallic links, The accompanying engraving represents a gang tinue their work, and allows the latch,/, to again and ditch plow invented by J. F. and W. L. Black of b b, having hinged… … 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…
Patents · Combination · Iron · Purpose · Claim · Manner · Purpose set · India rubber · Steam wagon · Scientific American · Address munn · Steam cut · Patent office · Purposes set · Boiler pressure · Soft metal
Internet Archive · Public domain (published before 1931). Free to use for anything.
