SLOT 7/16" DEEP X 1/2" WIDE 

 FOR LEVEL AS SHOWN 



13/4" X I 3/4" X 13/4" 

 LUCITE BLOCK 



1/32" THICK COLD 

 ROLLED STEEL INDICATOR 

 BRACKET 



4" DIA X 1/4" THICK 



LUCITE WHEEL CI/8" 



WIDE X 3/16" DEEP GROOVE) 



10-32 ALLEN HEAD 

 SCREW (2 REQD) 



3 7/8" 



1/4" THICK LUCITE 

 PLATES, 2 REQ'D 

 AS SHOWN 



WOOD KNOB 



LUCITE PIVOT 

 SHAFT 



13/4'X 13/4-X 2 3/4" 

 LUCITE BLOCK 



BAKELITE KNOB 

 SECTION AA 

 SCALE : FULL 



ALUMINUM BASE 

 5/8" X 3 1/4" X 5" SLOT 

 1/16" WIDE AS SHOWN 



SECTION BB 

 SCALE : FULL 



BRASS LOCK 

 SCREW 



1/4" DIA. X 1/4" LONG 

 STAINLESS STEEL TERMINALS 



SECTION CC 

 SCALE . FULL 



4" DIA X 1/4 • THICK 

 LUCITE WHEEL 

 CI/8" WIDE X 3/16" 

 DEEP GROOVE) 



A 



AL+ 



45 5/8" 



49 1 1/16" ■ 





^iur-- 



STRING BELT 



* 





I" DIA. X 48 5/6" LONG 

 LUCITE ROD WITH ONE 

 INCH GRADUATIONS 



scale: half 



COOK RESEARCH LABORATORIES 



A DfviSON OF COOK ELECTRIC CO. 

 CHICAGO ILL 



US£0 On 



MtOjECT ►» 

 396 



VOLTAGE GRADIENT PROBE 



cntCF £rfc].<'>l 



3C»l f ISQTE.D 



5996327 



Pig. 15 — Drfl"ing of voltn»ter probe. 

 26 



