. Charles V. Mapes'. Agricultural machinery. Fig. 96. Half Scotch Clevis. And the Common Clevis, of wrought iron, bv Fiar. 97. * ' .^ & Fig. 97. Common Clevis. The Quadrant Clevis, Fig. 98, afibrds a wide range to the earthing or landing of the plow, and is generally used in connection with the draft-rod on subsoil and other plows where extra deep heavy work is to be done. By loosening the nuts of the screw bolt of the clevis, through which the draft-rod passes, the line of draft may be raised or lowered, turned on or off" the land, and more or less depth or width of furrow may be giv
. Charles V. Mapes'. Agricultural machinery. Fig. 96. Half Scotch Clevis. And the Common Clevis, of wrought iron, bv Fiar. 97. * ' .^ & Fig. 97. Common Clevis. The Quadrant Clevis, Fig. 98, afibrds a wide range to the earthing or landing of the plow, and is generally used in connection with the draft-rod on subsoil and other plows where extra deep heavy work is to be done. By loosening the nuts of the screw bolt of the clevis, through which the draft-rod passes, the line of draft may be raised or lowered, turned on or off" the land, and more or less depth or width of furrow may be given the plow, to any desirable Fig. 98. The Quadrant Clevis and Draft-Rod. Lash's Spring-beam Plows. This new invention will be understood in part from Fig. 99. A spring of wood is attached to the front of the plow on the top of the beam; from its rear end descends a connecting rod, which couples with a toggle joint inserted within the beam, and at the lower end of which toggle, beneath the beam, is attached the draft-rod of the plow. Under all ordinary circumstances the plow may be pro- pelled through the soil without the spring being at all moved, the toggle being so configured as not to put the spring in motion with the mere pull of the draft-rod while plowing; but if the point come in contact with a stump, stone, or other im- movable body, then the momentum consequent upon such interference resolves. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Mapes, Charles Victor, 1836-1916. [from old catalog]. New York, M'Crea & Miller
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectagricul, bookyear1861
