UPPER CONNECTING ROD 



6 



COMPRESSION SPRING 



METAL PLATE 

 SOLDERED 

 TO CAN 



BOLT 

 SOLDE 

 TO CAN 



^!hi i 



ONE-NOZZLE SPRAYER 



MATERIALS AND APPROXIMATE COSTS 



30" long, 1" 



bent over for hook 

 long, iocs' 



Lower Connecting Rod- 

 on each end. 3('- 



2. Shock Spring — Cot spring or 10-gauge extension spring, 2" 



3. Turnbuckle — Vi" turnbuckle, 5Vi" long. 25c 

 Upper Connecting Rod — Vi" iron rod, 26" long, IVi" threaded on one 



end, 1 " bent over for hook on other end. 25C 

 Connecting Plate — 1/16" brass mending plate, V2" x 2". 1 0«' 

 Guides — 2 1/16" brass inside corner braces, '/2" x 1'/^". 1 Oi;' 

 Compression Spring — %" 14-gauge compression spring, 6" long. 30<(' 

 Me'jj Plate — 20-gauge sheet metal, 3" x 12". 1 0(' 

 Spray Pump — Z & W Model 2000 Hydraulic Hand Sprayer. $1.12 

 10. Gallon Can — Discarded commerciol spray can. 

 I 1. Spout from Quart or Pint Con — With threads to fit spray pump. 



Treadle Spring — 2 No. 6 heavy duty screen-door springs, 20" long. 38t'- 

 Lever — 1" x 1" x Va" angle iron, 24" long. 20<l- 

 Hardware Cloth — 1" x 1" welded wire mesh, 27" x 36". 70(i( 

 Treadle — I" boards, 30" x 36", two layers. $2.18 

 Upright — I Vi" x 114" x 3/16" angle iron, 62" long. 90«' 

 17. Frame — 3 1 Vi" x P/2" x 3/16" angle iron, 28" long. $1.26 

 2 1 Vi" X IV2" X 3/16" angle iron, 32" long. 96(' 

 Bolts — 4 Vi" bolts, 2Vi" long, two to fasten treadle to frame ond two 

 to fasten lever to treadle. 12('- 



2 Va" bolts, 1 Vi" long, one as broke bolt and the other to fas- 

 ten treadle spring to lever. 5<' 

 2 Vi" bolts, -Vi" long, to fasten con to frame. b(!' 

 The cost of materials used in building this one-nozzle sprayer was 

 opproximotely $9. 



TREADLE BOLTED 

 LOOSELY TO FRAME 

 (BOTTOM VIEW) 



BOLT 



