Figure 6(A). 

 by means of c a 

 chords of the 

 cable 29 feet 

 cho rd subt ende 

 from station 1 

 unt i 1 it t rans 

 from the c ent e 

 diver. A t emp 

 Junction, the 

 chi on 2 jetted 

 cho rd cable is 

 t i on 2 and the 

 s t at i on 3 , and 

 with rings wh i 



Succ e edi 

 bl es of 

 circle, 

 in 1 engt 

 d by an 



in c oun 



ects the 



r refere 



o rary st 



tripod p 



into t h 



t ransfe 



proc edu 



so on. 



ch f it o 



ng s t at i ons a 

 1 engths c o rre 



To position 

 h, co rrespo nd 

 angle of 7-£-° , 

 t ere 1 o c kw is e 



rad ius cable 

 nee stanchi on 

 ake is ins e rt 

 laced over it 

 e bottom. Th 

 rred from st a 

 re repeat ed t 



All cables a 

 ve r base pipe 



pos it zoned 

 ond ing to 

 at i on 2 , a 

 g to the 

 s stretc hed 

 rect ion 

 t retched 

 y another 



at the 

 and s t an~ 

 29-foo t 

 on 1 to sta- 

 establ i s h 



t erminat ed 



(B) So that gross errors are not caused by im- 

 proper stretching of the cables, snagging, etc., 

 a system of checks is imposed on every third 

 position. At station 4 a cho rd cable 86 feet 



6 inches in length, c o rr es pond ing to the chord 

 subt ended by an angle of 22^-°, is stretched from 

 station 1. The junction of the three cables — 

 the 29- foot chord cable from station 3, the 

 radius cable, and the chord cable from station 1 

 — constitutes station 4 . 



(C) The junction of cables from stations 1, 4, 

 and 6 and the center st anchi on conf i rms the accu- 

 racy of 1 o c at i on of station 7 . 



(D) Check of location of station 10. 



(E) Check of location of station 13. 



16 



