EXPERIMENT STATION BULXlETINS. 



341 



Instead of having a movable degorger, spray sprinkler 

 this nozzle has the degorger stationary 

 and the obstruction is removed by pressing 

 the end of the nozzle against a branch of a 

 tree or some other object, and slipping it back 

 against the degorger. 



When using the nozzle at the end of an 

 extension this makes the removal of the 

 obstruction much simpler than in the old way. 



The Myers Bros, also make a nozzle, shown 

 in Fig. 65, which works well with solutions 

 that are not likely to clog. 



PIPE EXTENSIONS 



Fig. 65. Myers Bros,' Nozzle. 



Even when spraying low plants it is desirable to 

 have at the end of the hose a short rod with the 

 nozzle at one end and a shut-off valve at the other by 

 which the stream can be cut off while passing from 

 plant to plant, and whenever it may be desirable to 

 stop spraying for a moment. In this way the 

 material will be saved and the air pressure will be 

 maintained so that there will be no loss of time 

 when spraying is resumed. 



A similar arrangement is particularly desirable 

 when spraying tall trees, as, in addition to the 

 advantages mentioned above, by the use of a long 

 piece of gas pipe with a valve at one end and the 

 nozzle at the other, a fine sf)ray can be carried to 

 the top of the highest orchard trees. 



In Fig. 66 will be seen a short lance, with a 

 degorger for the removal of obstructions from a 

 Vermorel nozzle,made by the Gould Manufacturing 

 Co., which is very useful upon low plants. A pipe 

 extension in two lengths, one or both of which can 

 be used as is desired, made by F. E. Myers & Bro., 

 is figured in Fig. 67. For the best work it should 

 have a shut-off at the lower end. Better even than 

 extension, ^lig gas pipe is the bamboo extension, which can 

 be obtained in any length up to ten or twelve feet. 



KNAPSACK PUMPS. 



Fig. 66. 

 Pipe 



Fig. 68. Knapsack Pamp. 



The so-called knapsack 

 pump consists of a copper 

 tank holding four or five 

 gallons, arranged with 

 straps so that it can be 

 attached to the back. The 

 pump and air chamber are 

 inside the tank. The at- 

 tachment of the handle and 

 hose are shown in Fig. 68 

 which illustrates the Eclipse 

 Knapsack sold by the Mor- 

 rill & Morley Co. 



Fig. 67. Long Pipe ExtenBioa. 



a 



