The side springs are secured to the axle in the ordinary manner by clips, and the ends of their main leaves are formed with eyes which rest within longitudinally slotted tubes. The central springs are also formed with eyes, which fit snugly within the forward tube, the ends of the spring being placed toward the center of the bar. The rear eyes are large enough to be slipped over the rear eyes of the side springs, the tube in this case being slipped over the eyes of both sets of springs. Rods passed through the tubes and eyes afford an additional support for the springs, and serve to strengthen the tubes which constitute the front and rear bars of the platform. The shaft clips are secured directly to the forward bar. The ends of the springs are clamped in place by clips. The frame constituting the bed of the fifth wheel is held to the two center springs. The rear tube may be entirely dispensed with, the overlapping ends of the springs being united by bolts, as shown. in the cut, habit of not giving notice of the fact until after the interment of the individuals, and consequently accuse me of being unsuccessful. You therefore see that, in spite of all this bad will, my doctrine comes out victorious once more by the test of this year, when the epidemic characterized itself by energetic intensity of infection and contagion. and for the forward tube may be substituted a wooden bar strengthened by an iron rod. This construction is particularly well adapted for all except very heavy wagons. . This peculiar W formation of the platform prevents it from getting out of square, as each spring serves as a brace for the others. This invention has been patented by Mr. Thomas H. Holman, of Newark, Ohio.
This article was originally published with the title "Vehicle Platform Gear" in Scientific American 54, 25, 387 (June 1886)