299 



have been already described, this sprinkling ai)paratus may be explained 

 as follows : 



" The letter I represents a metal strap, attached to the rear bar of the frame, G, with 

 the end parts bent forward at right angles and with holes to receive the journals of 

 the cylinder, H, the arms of the strap thus serving as springs to keep the cylinder in 

 place. By a simple arrangement, indicated in the figure, the frame, G, may be ad- 

 justed higher or lower to the standards, D, according to the height of the plants. In 

 the upper side of the cylinder, H, are formed a number of small holes, through which 

 the liquid poison escapes to the plants. In the center of the perforated side of the 

 cylinder, H, is formed a hole in vrhich is secured the tube, J, through which the poison 

 is poured into the said cylinder. The inner end of tube, i, is soldered in part to 

 the inner surface of the opposite side of the cylinder, H, to prevent it from being 

 loosened by the pressure of the liquid. Id the sides of the inner end of the tube, J, 

 are formed holes of such a size that the liquid will readily pass out of the said tube 

 into the cylinder, H. To the rear side of cylinder, H, are attached loops, K, to which 

 are attached cords, L, which pass through eyes, M, or around pulleys attached to the 

 rear bar of the frame, G. From the eyes or pulleys, M, the cords, L, pass over the cyl- 

 inder, H, and are attached to the projecting end of the tube, J. The cords, L, serve 

 to secure the cylinder, H, in place and limit its movement when turned upon its journals. 

 One or more balls, N, may be placed in the cylinder, H, which, when the cylinder 

 becomes empty, make a noise, and thus notify the operator. 



"If desired, the cylinder, H, may be rigidly secured to a single bar, G, attached to a 

 •ingle standard, D. In this case holes must be formed also in the upper side of the 

 cylinder, H. The holes in the upper side let the air escape in filling, and admit air to 

 cause the liquid poison to flow out through the lower holes. This construction is a 

 little simpler and cheaper than the other, but causes a slight waste of the poison, as 

 •ome of the poison will flow out through the lower holes while the cylinder is being 

 filled. 



" The operator may be protected from the poisonous liquid by cloth 

 screens placed upon the opposite sides of the handles, B, and attached 

 at their upper and lower edges to two pairs of rearwardly projecting 

 bars attached to the frame-work of i\\Q machine. 



^' The sprinkling apparatus mentioned in connection with the Eobin- 

 son Dusting and Sprinkling machine, described on page — , consists of 

 a tank, B, for holding the liquid, and of a sprinkling tube, C, connected 

 with the tank and extending across the frame and beyond far enough 

 to reach the two outside rows. This tube has small perforations, D, at 

 the ends, and also at the middle, E, for sprinkling the liquid upon three 

 rows of cotton. A gate or valve, F, is arranged in the tank to shut off 

 the liquid from the tube or to regulate the discharge. The end of the 

 tube is to be closed with a cap or plug, so that it can be opened and 

 the perforations be cleaned out." 



Siiction Force-pumps and Windlass Elevators^ for filling large elevated 

 tanks or raising them, belong very properly to the subject of wheeled- 

 sprinklers, but cannot be entered upon in detail at present. Barrels of 

 liquid can be loaded onto vehicles by the usual methods of rolling them 

 up an inclined supports, &c., also they may be elevated by pulley, wind- 

 lass, or derrick arrangements ; but in many instances, especially where 

 the water is to be taken from a creek or other body of water to the briut 

 of which the conveyance may be brought, it is most convenient to pump 



