AQUAPULTS, ETC. 2^9 



single-actiDg hydronette a flexible cup-packing above an annular slip- 

 bead which strikes into the cup to spread it at the force stroke. Mr. 

 F. S. Shirley, of ]S"ew Bedford, Mass., in patent No. 173349, February 

 8, 187G, introduced in the single-acting hydronette a tubular air-cham- 

 ber surrounding an inward projecting discharge-pipe (and which can 

 only be of value when directed above the horizontal), a strainer in the 

 j>iston-head, a piston and handle of one piece, and a cylinder and stuf- 

 fing-box of one piece. In l^o. 1993S0, January 22, 1878, Mr. W. F. Ray- 

 mond, of Brooklyn, N. Y., introduced the double-acting discharge in 

 combination with double-suction and the tubular air-chamber by using 

 five valves and the third or outside cylinder already noticed. Mr. A. 

 Hamilton, of New York City, patented, September 13, 1881 (No. 246880), 

 a hand-pump differing from the best hydronettes chiefly in its combina- 

 tion of a rose and solid jet nozzle with a shut-off cock and by the com- 

 plex construction of the piston head and valve. 



AQUAPULTS, AqUAJECTS, AqUAEIUS, ExCELSIOR, AND HyDRO- 



PULT. — (Plate XL.) Under these names are known small portable 

 l)umps which have a side discharge from the upper cylinder-cap, 

 while thpy are worked by a T-handle on top of the piston. When in 

 use these pumi^s are generally suj^ported in a more or less vertical posi- 

 tion by the operator, and the cylinder is often held b;^ some kind of at- 

 tachment to the receptacle for the liquid or by a foot-piece upon the 

 ground or floor. Being thus planted the weight of the body can be 

 thrown on the piston during the downward stroke, but the upward 

 stroke is more diiUcult. Some are double-acting, and most have an air- 

 chamber upon the cylinder or in the piston. The market prices of these 

 l)umps range from $8 to $10. The various kinds that have come to my 

 attention merit the following notice: 



The former Cotton Worm Reports make no allusion to these pumps, 

 yet there are several which seem to deserve consideration here. 



^^The Johnson Force Fiimp^^ appears to be the earlier form of the '•'-Aqua- 

 pultP Mr. W, J. Johnson, of Newton, Mass., took out patents No. 30480, 

 October 23, 1860, No. 6649, September 21, 1875, and No. 116599, July 4, 

 1871, relating to the following pumps : Plate XL, Fig. 1, represents his 

 pump in combination with a bucket for the liquid. The T-handle, f, is 

 seen on top of the large piston-rod,^, which is hollow and of half the 

 size of the outside cylinder, h. About midway of the cylinder is clamped 

 fast a bracket, &, with claws that clinch firmly upon the edge of the 

 bucket. The discharge takes place through a hose, /i, attached near the 

 top and having a terminal nozzle, w, of the kind described on page — , 

 and in Plate XY, Fig. 5. The pump is double-acting, works easily, and 

 is powerful in its action. It is manufactured by the National Manu- 

 facturing Company', Boston, Mass. Other manufacturers and inventors 

 have introduced modifications in some of its details. This form of 

 pump as manufactured by Messrs. W. & B. Douglas and patented 

 (No. 192979, July 10, 1877) by J. W. Douglas, all of Middletown, Conn.,' 



