202 Report 



tbiiiible shaped gas jet which discharges through a slit across its end is 

 auother early simple form of slofc-iiozzle used for spraying liquids. 



In 1874 Mr. J. H. Fowler, of Oakland, Oal., patented (No. 153672) a 

 slotted thimble nozzle with the end flattened and broadened somewhat 

 to enable greater length of slot, and hence throw a larger volume of 

 spray than the simpler thimble Ibrm, but the shape is such as to render 

 it very liable to clog, and there is no easy way for cleaning it out. 



A slot-nozzle of this description, but having a crook so that its dis- 

 charge is at a strong angle with its supply pipe, has been claimed, with 

 some other pump-details, by Mr. W. W. Mallory, of Holland Patent, 

 Oneida County, N. Y., in patent No. 237193, February 1, 1831. 



Mr. Anthony Iske, of L incaster, Pa., patented (No. 232131), in 1880, 

 11 nozzle, consisting of a slot in the side of a small box which is perfo- 

 rated by a supply tube having an inlet hole from its side into the box. 

 The bottom of this chamber has small leak-holes. The drip from these 

 and the slot collects in a large cup beneath them and mounted on the 

 8ame tube. ^ This i)rinciple also looks like a poor one, but I have not 

 liad an opportunity for testing it, antl hence cannot speak with cer- 

 tainty. 



FljjGt slot-nozzles.— Mr. A. F. Allen, of Providence, E. I., pat- 

 ented in 1869 (No. 89456) and in 1872 (No. 132617), what may be called 

 a plug slot-nozzle, the latter patent having added an internal gate- valve 

 to shut off the discharge which would generally not be needed in spray- 

 ing poison. The water is spread, by a conical plug held so loosely in 

 the discharge orifice that a sheet of liquid can issue all around it and 

 break into a spray. Tlie plug is attached by small rods to a nut which 

 screws back and forth on the outside of the nozzle, by which the plug 

 may be set tight enough to close the end or loose enough to let out 

 a sheet of liquid of any thickness desired. With a different plug a 

 solid jet alone or a solid jet and spray combined is made by the same 

 nozzle. 



A slit-nozzle involving some of the principles in Mr. Allen's nozzle, 

 some in Mr. Euhmann's improved cone-deflector, and others in Mr. John- 

 son's grooved iflug- nozzle is called " The Niagara Lawn Sprinkler" and 

 is being made at Sacramento, Gal.* The cone deflector serves as an ad- 

 justable loose plug, to change the quantity of water emitted around it. 

 A rod through the axis of the nozzle barrel projects beyond the dis- 

 charge, where it is cut with a spiral thread, on which the truncated per- 

 forated cone can be screwed and placed at such distance as to regulate 

 the size of spray desired. 



Mr. F. T. Pinter, of Schulenburg, Tex., patented (No. 233431) in 1880 

 a nozzle having a semi funnel-shaped discharge, and fitted into the same 

 a, semi-cone as a plug set farther in or out by a clamp screw. The 

 curved narrow space between this plug and the concave wall is the out- 



*See Treatise on insects injurious to fruit, &c., of the State of California, hj Matthew Cook, Sac- 

 ramento, 1881. Figure and description on p. 46. 



