SLOT-NOZZLES. 205 



jimctare. This bolds the plate off from the diagonally cut end of the 

 spout while it may be depressed to diminish or close the outlet by 

 screwing down upon it a flanged thumb-nut. Also, the tube crooks near 

 tlie plate so that its stem or handle is parallel to the course of the spray. 

 Its operation is not essentially different from that of the other nozzles 

 just noticed. 



A slot-nozzle patented in ISTo. 223402, January 6, 1880, by Mr. J. W. 

 Stanton, of Kew York City, consists in a solid jet pipe with one-half its 

 barrel longitudinally cut off' at its discharge end and for some distance 

 back so that the thumb can there be applied against the side of the 

 stream to flatten and disperse it. 



Side slots. — The diagonal slot-nozzles have led us naturally to those 

 which discharge from a slot in the side. Of this kind I have tested 

 two or three different styles devised by Mr. John Schier, of Ellinger, 

 Tex. Plate XVI, Fig. 8, shows his simplest sort, which is a vertical 

 screw-cap, with a horizontal slit cut near its top. The slit, s, is so deep 

 as to throw a broad semicircular spray, while that in Plate XVI, Fig. 

 9, differs only in having the spray divided into three with intervals be- 

 tween. In this way the one nozzle may be made to supi)ly three rows 

 without wasting much spray between them. Either of these short cap 

 nozzles can be screwed on the end of a vertical discharge pipe, and 

 in case of clogging can be removed by unscrewing them, while their 

 shallowness makes the interior easily accessible. A third nozzle by the 

 same inventor is represented in Plate XVI, Fig. 10. The part, c, is 

 screwed on and separable from a screw fixed in a solid core, filling the 

 center and one side of the tube, a. At one side of this core is an upward 

 ^ot-like passage leading to the horizontal outlet, the lower lip of which 

 is the top margin of the spout, a, while its upi:)er lip is the lower margin 

 of the cap, c, and hence the lips are taken apart when those parts are 

 separated. This gives better opportunity to clear out obstructions from 

 the horizontal outlet and the vertical, semi-cylindrical slot within, which 

 may also choke unless a very perfect straining process is used. The 

 lever, ^, is a thumb-piece by which to screw the short tube, a, on a pipe, 

 and the vertical collar at its base is to prevent any poison from spurt- 

 ing back toward the same, which points toward the operator. 



Mr. J. 0. Melcher, of Black Jack Springs, Fayette County, Tex., 

 has furnished two varieties of this type of nozzle, which are very sim- 

 ple in construction, and may be briefly described as follows : The first 

 is a simple T pipe of tin. with two slots cut crosswise of the tube and 

 parallel with each other just opposite the juncture of the stem- pipe. 

 The ends of the cross-pipe are closed, one having a cork or plug remova- 

 ble for cleaning out the interior. The other nozzle is a simple L pipe 

 forming an obtuse angle and having its distal end closed with a cross- 

 wise slot near thereto. For comparatively coarse broadcast work these 

 forms may be employed, and any of the coarse side-slots answer for 

 powder-blasts discharged beneath the plants. See PI. XXVII, Fig. 4, ss. 



