I 



COPPER TUBE CORNELIUS SPRAYER 



COMPRESSION SPRING 



END VIEW 



SCALE— I" = I2" 



TREADLE SPRING 



^ 



TREADLE, RAISED 



■6"- 



6"- 



-6"- 

 34" 



6"- 



6"^ 



PROPOSED PLAN 

 FOR Z. a W. SPRAYER 



•SHOCK 

 SPRING 



Diagrams of working model used in 1950 experi- 

 ments are shown at left. A proposed adaptation 

 of applicator in which Z. & W. sprayer may be 

 used is shown above. Several adaptations are 

 possible, and builders of applicators are iirged 

 to use their ingenuity. 



The two treadle springs may be heavy duty door 

 springs. The shock spring should be short and 

 heavy enough to absorb the sudden application of 

 animal weight on treadle. The compression spring 

 (or, with Z. & W. sprayer, a light extension spring) 

 should be strong enough to lift the lever and extend 

 the spray plunger. 



Plunger rod of sprayer should be loosely attached 

 to lever to reHuce friction and wear in sprayer. 



Connecting rod , which is attached to treadle and 

 operates sprayer, may be a heavy wire or 1/8 to 

 3/16 inch iron rod. 



General directions : Place chute on well -drained 

 soil and where cattle must pass through it on the 

 way to water or salt. Treat posts, treadle, floor, 

 and other wood parts with creosote or other wood 

 preservative. Keep water and water sprays out of 

 sprayer to prevent its corroding. 



-7- 



