Page:Federal Reporter, 1st Series, Volume 9.djvu/839

 824 FEDERAL REPOSTEE. �die of the axle, instead of having two joints at the spring of the arch, as shown in the Pattee patent. �It is insisted, on the part of the complainants, that it is by the use of this jointed axle, — that is, the axle jointed in the middle, — and in the peculiar two-way joint by which the defendants' plow-beams are attached to the axle so as to secure the requisite lateral and vertical motion to the plows, that certain claims in all these patents owned by the complainants are infringed. In other words, the complain- ants insist that the defendants' joint in the middle of their axle is but the equivalent of the two side joints in the Pattee axle, and is the same joint which is shown in the Pattee, and at least anticipated in the devices of Schroeder, Eichholtz, and Norton. The Schroeder machine was a straddle-row cultivator with a frame, consisting of wheels, axle, and tongue, but with a peculiar device for securing the plows to the frame by means of what he terms an "arched beam- yoke," which was bolted or pivoted at its center to the tongue in such a manner as that "either end of said beam-yoke may be advanced or receded with its respective plow without disturbing the parallelism of the plow-beams," which are hinged or jointed, to the yoke in such a manner as to permit of their being oseillated laterally or vertically, and yet to sustain the plows in their upright positions without rear connections. The plows are attached to this vibrating bar or "arched beam-yoke" by a two-way joint,^ — this two-way joint allowing a verti- cal and lateral motion to the plow, — and at the same time the joint is so constructed as to hold the plows in an upright position. The arched beam-yoke consists of the oentrally vibrating beam, or evener, and the pendant side arms which drop from the end of the evener. The joint by which the beams are attached to the pendant consists of two flat pieces of metal, one bolted to the top and the other to the under side of the end of the plow-beam, and bent so as to corne together forward of the end of the beam. A bifurcated or split plate is made to pass on each side of the pendant, and is attached thereto by a boit fastened through both parts of the split plate and the pendant, by which means the vertical movement of the joint is obtained. This split plate is carried back and flattened so as to pass between the two plates which embrace the end of the plow-beams, and attached thereto by a boit, so as to secure the lateral movement. The plows are drawn by means of a forked or two-pronged draft-bar, one limb of which is attached to the lower end of the pendent part of the yoke, and the other either to the upper end of the pendant or to ��� �