Mar. 20, 1916 
A New Spray Nozzle 
1181 
WHERE THE NEW NOZZLES ARE IMPRACTICAL 
Because the spray must first be separated into two streams in this 
type of nozzle it becomes particularly liable to clogging and should not 
be used for any spraying where there is any such tendency—e. g., with 
Bordeaux mixture. 
Most of the spray materials now used, however, are clear solutions 
and give no trouble in the nozzle. 
LONG- AND SHORT-DISTANCE NOZZLES 
When the angle is widest between the impinging streams, the angle 
of the fan is likewise widest, the drops finest, and the carrying distance 
of the spray the shortest. 
An acute angle between the impinging streams produces a very nar¬ 
row spray which carries a longer distance, but may perhaps finally reach 
nearly as great a width as that of the rapidly spreading short-distance 
spray. 
Some prefer a long-distance nozzle and use it close to an object, as 
where spot spraying on a tree trunk is desired. The new type of nozzle 
lends itself very readily to adjustment to any degree of distance, from 
the shortest to nearly the longest found in spray nozzles. 
ADJUSTMENT 
Any form of two-stream nozzle, like that known as the calla, or 
lily, nozzles, can be quickly converted into a nozzle of the new type by 
the use of a reamer, slightly enlarging the two apertures on opposite 
sides by working the instrument obliquely to the surface of the nozzle 
and trying it from time to time until the spray sheet stands at 45 0 . 
The same process will enable one to adjust a nozzle at any time should 
it wear irregularly enough to change the angle of the spray fan. The 
shape of the fan is a good index of the correct adjustment. If the angle 
is just right, the fan is triangular; if less than 45 0 , it is shortest in the 
center and the spray is coarser at the ends. If the angle is more than 
45 0 , the fan is longest in the center and the spray coarsest at this point. 
With care the reamer can be so used as to effect the change in the 
stream without enlarging the hole at the surface, and, therefore, not 
changing the volume of discharge. It may be possible to change the 
angle of the spread of the fan by reaming out beneath on the side adja¬ 
cent to or opposite the other hole. One should continually try a nozzle 
while adjusting it, so as not to carry the work too far. 
SUMMARY 
(1) A new principle employed in nozzle construction will produce a 
flat spray with the, qualities of a cyclone nozzle. 
(2) A uniform sheet of water breaking along its edge produces drops 
of uniform size. 
