The advantages that are gained by constructing common road wagons, so that they will " dump" are so well known that it is unnecessary to recapitulate them. The wagon which is the subject of our illustration dumps in two parts, the body being divided transversely at or near the center of its length, and the sections are hinged so that they can be tilted independently of each other. This arrangement avoids the necessity of shifting or sliding the body, even if made long, independently of the frame, when it is desired to dump the load, as the front section oan be dumped, and the truck then moved forward far enough to bring the rear section in proper position for dumping like the first, so that its load may be dumped on that deposited by the first section. Two different materials can be oarried in this wagon and dumped separately, in different places, or in the same as desired. In our engravings,-Fig. 1 is a perspective view of the wagon, dumped. Fig. 2 is a side elevation of the wagon as ready for carrying a load, and Fig. 3 is a view of the mechanism by which the parts are dumped. A A are the wheels, and B B the axles of a common road wagon. D D are two side bars resting on the bolster of the front axle, and fastened permanently to the axle of the rear wheels. These bars are also connected to -gether by stay-bars, E E. On the frame formed by the bars the body of the wagon is mounted ; the section, Gr, being hinged at H, and the section, Gr', being hinged at H'. The line, I, of division between the sections, is cut obliquely down through the body, so that the front section may descend without touching the rear one, and still a tight joint be maintained when the sections are locked together. The two sections are held up at the point, I, by the sliding bar, J, and by hinged catches, a. The bar comes underneath the divisionline, being arranged to slide back and ' forward in brackets, j j, and when under the line stops the front section from falling or tilting. The catches are hinged to the top of the side bars, D, and enter holes in the side-board of the rear section, and prevent it from tilting. K represents a crank bar operated by the lever, L, that moves J in its brackets. The neither part will tilt, and the load may consequently be carried to the desired place. It is also evident that after the load is transported to the place of destination, and the sliding locking bar, J, moved to the position shown in Fig. 1, the front section may be as easily lever, L, is held by a notched segment, M, in proper position to prevent the sections from dumping. From the foregoing description and refer-enoe to the drawings, it is evident that if the wagon is loaded while in the position in Fig. 2, dumped as a short cart, and the other section can be dumped by withdrawing the catches, a. It was patented Oct. 20, 1857, by the in-ventors, M. Y. and T. J. Cope, of Center-bridge, Pa., who will be happy to furnish any further particulars.
This article was originally published with the title "Improved Dumping Wagon" in Scientific American 13, 37, 289 (May 1858)