HYDRONETTES, ETC. 
263 
half the inside capacity of the outside cylinder, have been made under 
>everal patents, and some of these possess a high degree of excellence. 
A well-pomp having tubes of these relative proportions and side out- 
lets from the piston to the upper chamber of the cylinder, was patented 
by Mr. J. HI. May (in No. 25207) on August 23, 1859, as a double-acting 
pump." These features were afterwards (unbodied in the better, portable 
b^nd-pumps of the group we now are to consider more specially. The 
single-acting ones, having tubes with or. without the proportions named, 
are less desirable on account of their discharge being intermittent, and 
they appear related to those syringes which have a hollow-piston dis- 
charge. Such a syringe, for example, was patented (No. 89362) on April 
27, 1869, by Mr. H. Tyler, of Gaines, N. Y. The discharge is through 
a piston-tube terminating in a rose head directed to one side, and the 
whole is mounted < n a pair of slide-bars, bj which it can be operated 
for applying poisOU in or above trees. 
Mr. \Y. Servant, of Providence, Ii. I., patented (No. 107G33) on Sep- 
tember 20, 1870, a sprinkler,'' shown in Plate \LI V, Fig. 1. It con- 
sists of a portable pump cylinder,//, having a tabular, discharging piston, 
p, working telescopically in it, all provided with suitable packings, 
valves, a flexible or jointed suction-tube or hose, A, and with inter- 
changeable solid jet, .v, and rose-no//les, r. Ball-valves were preferably 
used as ; he base valves of the cylinder ami piston. 1 n t he tig lire is the 
strainer entrance to the suet ion-hose. It, which is coupled to the base of 
the cylinder, y, in which glides the tubular piston, p, bearing a handle, 
■», and substitutive solid- jet nozzle, t, and spray-rose, r. The nozzle 
out of QSe is carried on a nil) as at r. Drawing out the piston rarities 
the cylinder chamber, which atmospheric pressure tills with water to be 
discharged by the return stroke. Thus the pump shown throws an in- 
termittent jet, it being only single-acting. But Mr. Servant, iu his let- 
ters patent, savs: " I do not intend to limit the afore-described arrange- 
ments to a single-acting pomp, as they are equally applicable to a double- 
action pump." The general form of construction of this pump is essen- 
tially the same as that patented (No. 55022) May 22, 1SG0, by Mr. E. L. 
Staples, of Nashville, Tenn., but the latter is for insertion as a deep- 
well " lift-pump,'' while Mr. Servant seems to have first produced it in 
portable size with tin- handle upon its piston-tube and with the flexible 
suction-pipe having a strainer by which it can take a supply from any 
other pipe or from any kind of receptacle. Thereby it became a vain, 
able pnmp of most general application, and has been largely manufact- 
ured in both single-acting and double-acting styles, with modifications 
covered by more or less subordinate patents on variations in some of 
its special details. 
dnder this patent and under others by J. A. Whitman, also of Provi. 
dence. bearing date of September 20, 1870, January 8, 1878 (No. 199131), 
and November I, 18S1 (No. 218902), this pump has been manufactured 
for the trade as " The Fountain Pump" and " Whitman's Fountain Pump." 
