^ SLOT-NOZZLES. 203 



let orifice, having a curved-slot shape. The device is essentially a 

 crooked adjustable slot, but such that, when set wide open, its lips act 

 only as deflectors. 



Removable slots.— A slit-nozzle manufactured under the joint pat- 

 ent rXo. 25L44S, Dec. 27, 18SL) of Messrs. P. Long, De W. 0. Vestal, 

 and A. P. Merigot, of San Jose, Oal., consists of a screw-cap having a 

 large round perforation through its top, beneath which a slotted circu- 

 lar disk can be clamped on the end of a pipe. Disks with slots of un- 

 like capacity are separably insertable to produce sprays of different 

 sizes. The same arrangement permits clogging material to be removed. 



Jawed slots. — Attempts have been made to combine the slit-spray 

 and solid jet in one nozzle. Most of these are not well suited for our 

 l)urposes, but I must notice one which will answer well for large broad- 

 cast spraj's. This is sold in the market under the title of '' The Boss 

 Xozzle" as patented (Xo. 20SI22), in 1878, by G. K Raymond, and 

 G. B. Perkins, of Bridgeport, Conn. It is shown in Plate XVII, Fig. 5, 

 and in section at Fig. 6; b represents its hose attachment, a the barrel 

 and c its head, through which the passage Is controlled by a faucet- 

 plug, r7, so cut that it may be turned by the head d to direct the water 

 through the solid jet-pipe /, or through the slot s, at will. This slit 

 allows the water to spread broadh' and the plug is adjustable to flatten 

 the spray still more to any degree of thinness desired, or allo,w it to 

 discharge with the full capacity of the slot. This adjustment enables 

 the washing or cleaning out of foreign materials instantly from the slit, 

 simply by turning the plug, which is one of the greatest advantages in 

 this nozzle. 



A solid jet, with lips that close to form a slot-spray, was invented by 

 Mr. L. B. Smith, of Chelsea, Mass., and secured in 1881 (Xo. 245096). 

 A section view of it appears in Plate XVII, Fig. 4; a indicates the bar- 

 rel upon which a long thumb-nut, &, may be screwed backward or for- 

 ward. The two peculiarly shaped lips, yy, with sides, cc, ^ire hinged, at 

 00, upon which joints they may open or shut. The lips also have back- 

 ward lever arms, xx. The nut screwed forward beneath these, holds 

 the lips shut, leaving only the slot outlet, while moving the nut back 

 to disengage io from the levers allows the lips to open and a solid jet is 

 discharged. Similarly the slot can be opened to permit obstructing 

 mutters to wash out of it. 



In 1874 (Xo. 153977) Mr. Biddle R. Moffett, of Swedesborough, X. J., 

 patented the nozzle shown in Plate XVII, Fig. 3. " The spout, a, is cut 

 under suitable inclination, and closed by rubber or other packing, &, 

 applied to the similarly inclined front end of a spring-lever, I, which is 

 pivoted to standard,/ The packing, h, is of elliptical shape, and fits 

 tightly over the spout of the nozzle, so as to prevent the escape of any 

 water therefrom. A band spring, zi, acts on the handle of the lever, 

 and forces the front end on the spout until opened by pressure on the 

 lever handle, ?, or on its lip. 



