MANY-PUNCTURED NOZZLES. 
195 
In such nozzles it is economy to pierce only those sections of the cross- 
tube that come over the rows, and leave blank spaces with no spray be- 
tween, as in the figure just referred to. Any perforated tube of this 
character should have its ends closed by screw-caps or plugs. The 
pipe can then be easily cleaned by opening these and passing through 
a long handle bearing one of the cylindrical brushes used for cleaning 
lamp chimneys. Small hand-nozzles of essentially the same form have 
been made. One used by Mr. Warner on his " Saddle-sprinkler," de- 
scribed further on, has the cross-tube curved as in Plate XIV, Fig. G, 
to throw the spray broader, and needs the improvements just suggested. 
Divided rose-heads. — A rose-head that separates from its neck, 
or from a solid jet-nozzle, by a clutch-coupling, which is the simplest 
way of joining and detaching these parts quickly, is sold by Messrs. 
Must, Foos & Co., of Springfield, Ohio. It also leaves the interior some- 
what accessible for taking out materials which choke it. 
Mr. William Westlake, of Chicago, 111., patented in 1871 (No. 174221) 
the use of the common sheet-metal can screw as a large separable neck 
for rose-heads. In this way can be made a very cheap sheet-metal rose, 
as on Plate XIV, Fig. 7, with a wide hole through which to remove 
clogging materials from the interior. 
But a still larger sheet-metal screw-coupling, separating the perfor- 
ated face immediately from the body of the rose, as at (1, in Plate XV, 
Fig. 2, was secured to Mr. L. B. Foss, of Boston, Mass., in 1870 (No. 
174221). The preceding rose-heads are of cheap construction, and the 
last-mentioned one is the best of the very cheap ones heretofore made 
entirely of thin sheet-metal. 
Mr. S. H. Fox, of Saint Louis, Mo., patented in 1880 (Xo. 223332) a 
strainer-nozzle, a plan-view of which is shown in Plate XIV, Fig. 8. It 
consists of two concent l ie cylinders. The inner one is of fine wire gauze. 
Through this the water entering by the inlet, </, must pass to the outer 
cylinder before reaching the very finely perforated sprinkler face which 
emits the spray, 9. This face is a screw-cap removable for cleaning. 
Also the gauze cylinder may be l ( novated by taking oil' a similar cap 
which bears the inlet-tube. This produces an uncommonly finely-divided 
spray foi a nozzle of its class. 
Yet the idea of removing the perforated rose face from its body by a 
cut screw-juncture and screwing it on reversed, existed much earlier, 
and was embodied in a patent in 1809 (Xo. 87321) by Mr. James Bar- 
rows, of Hyde Park, Mass. 
Another good rose with the face reversible was obtained in 1875 
(Patent Xo. 11G1G4), by M r. \Y. T. Vose, of Xewtonville, Mass. A plan- 
section of this is shown in Plate XV, Fig. 3, where a represents the neck 
to be connected with a spout or solid-jet nozzle and c is a screw-band 
which clamps the reversible circular face, />, to the walls of the chamber or 
rose-head, a. Being constructed of brass, nicely finished, it is probably 
the most durable and serviceable rose-head made. A number of differ- 
