265 



The tangential entrance to the eddy-chamber is made from the face 

 of the nipples, b and h', and as these do not meet in the stem, rotating 

 the chambers does not interfere with the How of the liquid. This is a 

 useful modification in the construction of this nozzle both from the fact 

 that two nozzles are conveniently mounted on one discharge pipe, and 

 that, being fitted on a rotating axis, the direction of the spray can be 

 governed at will. 



The Alhrand Modification.— Mi: G. Albrand has constructed a Eiley 

 nozzle on the same principle as his modification of the Raveneau nozzle. 

 I^ot satisfied with the Vermorel system of disgorging or clearing the 

 nozzle from obstructions, he has constructed his with the cap attached 

 to a thumb-lever held in place by a spring. 



When the discharge orifice, which is situated in the removable cap^ 

 becomes obstructed, a pressure on the thumb-lever raises the cap and 

 permits the liquid to rush out, carrying away any obstructions. 



The cut (Fig. 60) illustrates this feature of the nozzle. The eddy- 

 chamber is situated at the extremity 

 of the stem, & ; c is the cap and a the 

 thumb-lever held in place by tlie 

 spring beneath it. 



TheJapy Modification. — In this noz- 

 zle Japy has devised a degorger 

 soniffwhat on the principle of the Ver- 

 morel, but which works in the op- 

 posite way (Fig. 61). In normal position the thumb-lever a is suffi- 

 ciently raised by the spring placed between it and the tube h to throw 

 the needle c down into the aischarge orifice, thus closing it and prevent- 

 ing the passage of the liquid. 



When the operator wishes to begin work he presses upon the le^'er as 

 shown in the cut and immediately the spray issues from the eddy- 

 chamber. If the discharge becomes clogged he releases the lever and 

 the needle is thrown forward into the opening, thus clearing it. This 

 is a convenient and simi)le plan of disgorging, and at the same time 

 serves the purpose of a stop cock or cut-ott". 



Fig. 60. — The Albraud Kozzle — reduced (Grig 

 inal). 



Fig. CI —The Japy Nozzle— reduced (Original). 



By reference to Fig. 61 the plan of the nozzle will be easily under, 

 stood. In general construction it does not differ from other nozzles of 



